Clear Openings/Egress

Ultra Series Sterling Double Hung
Sterling Double Hung Segment Heads and Ultra Series Pocket Double Hung Segment Heads
Frame Size Glass Size Clear Opening Sash Size
Width (in.) Height (in.) Segment Drop (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
21-1/2 36-7/16 4 16 14 2.71 1.06 5.44 17-31/32 8-1/2 1.06 No 20 34
21-1/2 40-7/16 4 16 16 3.13 1.3 6.04 17-31/32 10-15/32 1.3 No 20 38
21-1/2 48-7/16 4 16 20 3.96 1.8 7.23 17-31/32 14-13/32 1.8 No 20 46
21-1/2 52-7/16 4 16 22 4.38 2.04 7.83 17-31/32 16-3/8 2.04 No 20 50
21-1/2 56-7/16 4 16 24 4.79 2.29 8.43 17-31/32 18-11/32 2.29 No 20 54
21-1/2 60-7/16 4 16 26 5.21 2.53 9.02 17-31/32 20-5/16 2.53 No 20 58
21-1/2 64-7/16 4 16 28 5.63 2.78 9.62 17-31/32 22-5/16 2.78 No 20 62
21-1/2 68-7/16 4 16 30 6.04 3.03 10.22 17-31/32 24-9/32 3.03 No 20 66
21-1/2 72-7/16 4 16 32 6.46 3.28 10.82 17-31/32 26-9/32 3.28 No 20 70
21-1/2 76-7/16 4 16 34 6.88 3.53 11.41 17-31/32 28-1/4 3.53 No 20 74
21-1/2 80-7/16 4 16 36 7.29 3.77 12.01 17-31/32 30-1/4 3.77 No 20 78
25-1/2 36-7/16 4 20 14 3.43 1.3 6.45 21-31/32 8-1/2 1.3 No 24 34
25-1/2 40-7/16 4 20 16 3.96 1.59 7.16 21-31/32 10-15/32 1.59 No 24 38
25-1/2 48-7/16 4 20 20 5.01 2.2 8.58 21-31/32 14-13/32 2.2 No 24 46
25-1/2 52-7/16 4 20 22 5.54 2.5 9.29 21-31/32 16-3/8 2.5 No 24 50
25-1/2 56-7/16 4 20 24 6.07 2.8 9.99 21-31/32 18-11/32 2.8 No 24 54
25-1/2 60-7/16 4 20 26 6.6 3.1 10.7 21-31/32 20-5/16 3.1 No 24 58
25-1/2 64-7/16 4 20 28 7.13 3.4 11.41 21-31/32 22-5/16 3.4 No 24 62
25-1/2 68-7/16 4 20 30 7.65 3.7 12.12 21-31/32 24-9/32 3.7 No 24 66
25-1/2 72-7/16 4 20 32 8.18 4.01 12.83 21-31/32 26-9/32 4.01 No 24 70
25-1/2 76-7/16 4 20 34 8.71 4.31 13.54 21-31/32 28-1/4 4.31 No 24 74
25-1/2 80-7/16 4 20 36 9.24 4.61 14.24 21-31/32 30-1/4 4.61 No 24 78
29-1/2 36-7/16 5 24 14 4.15 1.37 7.46 25-31/32 7-19/32 1.37 No 28 34
29-1/2 40-7/16 5 24 16 4.79 1.72 8.28 25-31/32 9-9/16 1.72 No 28 38
29-1/2 48-7/16 5 24 20 6.07 2.43 9.92 25-31/32 13-15/32 2.43 No 28 46
29-1/2 52-7/16 5 24 22 6.71 2.78 10.74 25-31/32 15-7/16 2.78 No 28 50
29-1/2 56-7/16 5 24 24 7.35 3.14 11.56 25-31/32 17-7/16 3.14 No 28 54
29-1/2 60-7/16 5 24 26 7.99 3.5 12.38 25-31/32 19-13/32 3.5 No 28 58
29-1/2 64-7/16 5 24 28 8.63 3.85 13.2 25-31/32 21-3/8 3.85 No 28 62
29-1/2 68-7/16 5 24 30 9.26 4.21 14.02 25-31/32 23-3/8 4.21 No 28 66
29-1/2 72-7/16 5 24 32 9.9 4.57 14.84 25-31/32 25-11/32 4.57 No 28 70
29-1/2 76-7/16 5 24 34 10.54 4.93 15.66 25-31/32 27-5/16 4.93 No 28 74
29-1/2 80-7/16 5 24 36 11.18 5.28 16.48 25-31/32 29-5/16 5.28 No 28 78
31-1/2 36-7/16 5 26 14 4.51 1.47 7.97 27-31/32 7-19/32 1.47 No 30 34
31-1/2 40-7/16 5 26 16 5.21 1.85 8.85 27-31/32 9-9/16 1.85 No 30 38
31-1/2 48-7/16 5 26 20 6.6 2.62 10.6 27-31/32 13-15/32 2.62 No 30 46
31-1/2 52-7/16 5 26 22 7.29 3 11.47 27-31/32 15-7/16 3 No 30 50
31-1/2 56-7/16 5 26 24 7.99 3.38 12.35 27-31/32 17-7/16 3.38 No 30 54
31-1/2 60-7/16 5 26 26 8.68 3.77 13.22 27-31/32 19-13/32 3.77 No 30 58
31-1/2 64-7/16 5 26 28 9.38 4.15 14.1 27-31/32 21-3/8 4.15 No 30 62
31-1/2 68-7/16 5 26 30 10.07 4.54 14.97 27-31/32 23-3/8 4.54 No 30 66
31-1/2 72-7/16 5 26 32 10.76 4.92 15.85 27-31/32 25-11/32 4.92 No 30 70
31-1/2 76-7/16 5 26 34 11.46 5.3 16.72 27-31/32 27-5/16 5.3 No 30 74
31-1/2 80-7/16 5 26 36 12.15 5.69 17.6 27-31/32 29-5/16 5.69 No 30 78
33-1/2 36-7/16 5 28 14 4.88 1.58 8.48 27-31/32 7-19/32 1.58 No 32 34
33-1/2 40-7/16 5 28 16 5.63 1.99 9.41 29-31/32 9-9/16 1.99 No 32 38
33-1/2 48-7/16 5 28 20 7.13 2.8 11.27 29-31/32 13-15/32 2.8 No 32 46
33-1/2 52-7/16 5 28 22 7.88 3.21 12.2 29-31/32 15-7/16 3.21 No 32 50
33-1/2 56-7/16 5 28 24 8.63 3.63 13.13 29-31/32 17-7/16 3.63 No 32 54
33-1/2 60-7/16 5 28 26 9.38 4.04 14.06 29-31/32 19-13/32 4.04 No 32 58
33-1/2 64-7/16 5 28 28 10.13 4.45 14.99 29-31/32 21-3/8 4.45 No 32 62
33-1/2 68-7/16 5 28 30 10.88 4.86 15.92 29-31/32 23-3/8 4.86 No 32 66
33-1/2 72-7/16 5 28 32 11.63 5.27 16.85 29-31/32 25-11/32 5.27 No 32 70
33-1/2 76-7/16 5 28 34 12.38 5.68 17.78 29-31/32 27-5/16 5.68 No 32 74
33-1/2 80-7/16 5 28 36 13.13 6.1 18.71 29-31/32 29-5/16 6.1 No 32 78
35-1/2 36-7/16 5 30 14 5.24 1.69 8.98 31-31/32 7-19/32 1.69 No 34 34
35-1/2 40-7/16 5 30 16 6.04 2.12 9.97 31-31/32 9-9/16 2.12 No 34 38
35-1/2 48-7/16 5 30 20 7.65 2.99 11.94 31-31/32 13-15/32 2.99 No 34 46
35-1/2 52-7/16 5 30 22 8.46 3.43 12.93 31-31/32 15-7/16 3.43 No 34 50
35-1/2 56-7/16 5 30 24 9.26 3.87 13.91 31-31/32 17-7/16 3.87 No 34 54
35-1/2 60-7/16 5 30 26 10.07 4.3 14.9 31-31/32 19-13/32 4.3 No 34 58
35-1/2 64-7/16 5 30 28 10.88 4.75 15.89 31-31/32 21-3/8 4.75 No 34 62
35-1/2 68-7/16 5 30 30 11.68 5.19 16.87 31-31/32 23-3/8 5.19 No 34 66
35-1/2 72-7/16 5 30 32 12.49 5.62 17.86 31-31/32 25-11/32 5.62 No 34 70
35-1/2 76-7/16 5 30 34 13.29 6.06 18.84 31-31/32 27-5/16 6.06 No 34 74
35-1/2 80-7/16 5 30 36 14.1 6.5 19.83 31-31/32 29-5/16 6.5 No 34 78
37-1/2 36-7/16 6 32 14 5.6 1.58 9.49 33-31/32 6-11/16 1.58 No 36 34
37-1/2 40-7/16 6 32 16 6.46 2.04 10.53 33-31/32 8-21/32 2.04 No 36 38
37-1/2 48-7/16 6 32 20 8.18 2.96 12.61 33-31/32 12-21/32 2.96 No 36 46
37-1/2 52-7/16 6 32 22 9.04 3.42 13.66 33-31/32 14-17/32 3.42 No 36 50
37-1/2 56-7/16 6 32 24 9.9 3.89 14.7 33-31/32 16-1/2 3.89 No 36 54
37-1/2 60-7/16 6 32 26 10.76 4.36 15.74 33-31/32 18-15/32 4.36 No 36 58
37-1/2 64-7/16 6 32 28 11.63 4.82 16.78 33-31/32 20-7/16 4.82 No 36 62
37-1/2 68-7/16 6 32 30 12.49 5.29 17.82 33-31/32 22-7/16 5.29 No 36 66
37-1/2 72-7/16 6 32 32 13.35 5.75 18.86 33-31/32 24-13/32 5.75 No 36 70
37-1/2 76-7/16 6 32 34 14.21 6.22 19.91 33-31/32 26-3/8 6.22 No 36 74
37-1/2 80-7/16 6 32 36 15.07 6.69 20.95 33-31/32 28-3/8 6.69 No 36 78
41-1/2 36-7/16 6 36 14 6.32 1.76 10.5 37-31/32 6-11/16 1.76 No 40 34
41-1/2 40-7/16 6 36 16 7.29 2.28 11.65 37-31/32 8-21/32 2.28 No 40 38
41-1/2 48-7/16 6 36 20 9.24 3.31 13.96 37-31/32 12-21/32 3.31 No 40 46
41-1/2 52-7/16 6 36 22 10.21 3.83 15.11 37-31/32 14-17/32 3.83 No 40 50
41-1/2 56-7/16 6 36 24 11.18 4.35 16.26 37-31/32 16-1/2 4.35 No 40 54
41-1/2 60-7/16 6 36 26 12.15 4.87 17.42 37-31/32 18-15/32 4.87 No 40 58
41-1/2 64-7/16 6 36 28 13.13 5.39 18.57 37-31/32 20-7/16 5.39 No 40 62
41-1/2 68-7/16 6 36 30 14.1 5.91 19.72 37-31/32 22-7/16 5.91 No 40 66
41-1/2 72-7/16 6 36 32 15.07 6.43 20.88 37-31/32 24-13/32 6.43 No 40 70
41-1/2 76-7/16 6 36 34 16.04 6.95 22.03 37-31/32 26-3/8 6.95 No 40 74
41-1/2 80-7/16 6 36 36 17.01 7.48 23.18 37-31/32 28-3/8 7.48 No 40 78
45-1/2 36-7/16 7 40 14 7.04 1.68 11.51 41-31/32 5-25/32 1.68 No 44 34
45-1/2 40-7/16 7 40 16 8.13 2.25 12.78 41-31/32 7-23/32 2.25 No 44 38
45-1/2 48-7/16 7 40 20 10.29 3.39 15.3 41-31/32 11-5/8 3.39 No 44 46
45-1/2 52-7/16 7 40 22 11.38 3.96 16.57 41-31/32 13-19/32 3.96 No 44 50
45-1/2 56-7/16 7 40 24 12.46 4.54 17.83 41-31/32 15-9/16 4.54 No 44 54
45-1/2 60-7/16 7 40 26 13.54 5.11 19.1 41-31/32 17-17/32 5.11 No 44 58
45-1/2 64-7/16 7 40 28 14.63 5.68 20.36 41-31/32 19-1/2 5.68 No 44 62
45-1/2 68-7/16 7 40 30 15.71 6.26 21.62 41-31/32 21-15/32 6.26 No 44 66
45-1/2 72-7/16 7 40 32 16.79 6.84 22.89 41-31/32 23-15/32 6.84 No 44 70
45-1/2 76-7/16 7 40 34 17.88 7.41 24.15 41-31/32 25-7/16 7.41 No 44 74
45-1/2 80-7/16 7 40 36 18.96 7.99 25.42 41-31/32 27-13/32 7.99 No 44 78
Ultra Series Sterling Double Hung
Sterling Cottage Style DH High and Impact Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
21-1/2 68-7/16 16 24 36 6.04 2.73 10.22 17-31/32 21-7/8 2.73 No 0.4 0.6 20 66
25-1/2 68-7/16 20 24 36 7.65 3.34 12.12 21-31/32 21-7/8 3.34 No 0.4 0.6 24 66
29-1/2 68-7/16 24 24 36 9.26 3.94 14.02 25-31/32 21-7/8 3.94 No 0.4 0.6 28 66
33-1/2 68-7/16 28 24 36 10.88 4.55 15.92 29-31/32 21-7/8 4.55 No 0.4 0.6 32 66
37-1/2 68-7/16 32 24 36 12.49 5.16 17.82 33-31/32 21-7/8 5.16 No 0.4 0.6 36 66
41-1/2 68-7/16 36 24 36 14.1 5.77 19.72 37-31/32 21-7/8 5.77 No 0.4 0.6 40 66
45-1/2 68-7/16 40 24 36 15.71 6.38 21.62 41-31/32 21-7/8 6.38 No 0.4 0.6 44 66
Ultra Series Sterling Double Hung Bay
Sterling Cottage Style DH High and Impact Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
45-1/2 68-7/16 40 24 36 15.71 6.38 21.62 41-31/32 21-7/8 6.38 No 0.4 0.6 44 66
41-1/2 68-7/16 36 24 36 14.1 5.77 19.72 37-31/32 21-7/8 5.77 No 0.4 0.6 40 66
37-1/2 68-7/16 32 24 36 12.49 5.16 17.82 33-31/32 21-7/8 5.16 No 0.4 0.6 36 66
33-1/2 68-7/16 28 24 36 10.88 4.55 15.92 29-31/32 21-7/8 4.55 No 0.4 0.6 32 66
21-1/2 68-7/16 16 24 36 6.04 2.73 10.22 17-31/32 21-7/8 2.73 No 0.4 0.6 20 66
29-1/2 68-7/16 24 24 36 9.26 3.94 14.02 25-31/32 21-7/8 3.94 No 0.4 0.6 28 66
25-1/2 68-7/16 20 24 36 7.65 3.34 12.12 21-31/32 21-7/8 3.34 No 0.4 0.6 24 66
Ultra Series Sterling Double Hung
Sterling Cottage Style DH Standard Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
21-1/2 68-7/16 16 24 36 6.04 2.79 10.22 17-31/32 22-3/8 2.79 No 0.4 0.6 20 66
25-1/2 68-7/16 20 24 36 7.65 3.41 12.12 21-31/32 22-3/8 3.41 No 0.4 0.6 24 66
29-1/2 68-7/16 24 24 36 9.26 4.04 14.02 25-31/32 22-3/8 4.04 No 0.4 0.6 28 66
31-1/2 68-7/16 26 24 36 10.07 4.35 14.97 27-31/32 22-3/8 4.35 No 0.4 0.6 30 66
33-1/2 68-7/16 28 24 36 10.88 4.66 15.92 29-31/32 22-3/8 4.66 No 0.4 0.6 32 66
35-1/2 68-7/16 30 24 36 11.68 4.97 16.87 31-31/32 22-3/8 4.97 No 0.4 0.6 34 66
37-1/2 68-7/16 32 24 36 12.49 5.28 17.82 33-31/32 22-3/8 5.28 No 0.4 0.6 36 66
41-1/2 68-7/16 36 24 36 14.1 5.9 19.72 37-31/32 22-3/8 5.9 No 0.4 0.6 40 66
45-1/2 68-7/16 40 24 36 15.71 6.52 21.62 41-31/32 22-3/8 6.52 No 0.4 0.6 44 66
Ultra Series Sterling Double Hung Bay
Sterling Cottage Style DH Standard Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
45-1/2 68-7/16 40 24 36 15.71 6.52 21.62 41-31/32 22-3/8 6.52 No 0.4 0.6 44 66
41-1/2 68-7/16 36 24 36 14.1 5.9 19.72 37-31/32 22-3/8 5.9 No 0.4 0.6 40 66
37-1/2 68-7/16 32 24 36 12.49 5.28 17.82 33-31/32 22-3/8 5.28 No 0.4 0.6 36 66
35-1/2 68-7/16 30 24 36 11.68 4.97 16.87 31-31/32 22-3/8 4.97 No 0.4 0.6 34 66
33-1/2 68-7/16 28 24 36 10.88 4.66 15.92 29-31/32 22-3/8 4.66 No 0.4 0.6 32 66
31-1/2 68-7/16 26 24 36 10.07 4.35 14.97 27-31/32 22-3/8 4.35 No 0.4 0.6 30 66
29-1/2 68-7/16 24 24 36 9.26 4.04 14.02 25-31/32 22-3/8 4.04 No 0.4 0.6 28 66
25-1/2 68-7/16 20 24 36 7.65 3.41 12.12 21-31/32 22-3/8 3.41 No 0.4 0.6 24 66
21-1/2 68-7/16 16 24 36 6.04 2.79 10.22 17-31/32 22-3/8 2.79 No 0.4 0.6 20 66
Ultra Series Sterling Double Hung
Sterling Cottage Style DH with Class 5 Balances High and Impact Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
41-1/2 68-7/16 36 24 36 14.1 5.24 19.72 37-31/32 19-7/8 5.24 No 0.4 0.6 40 66
33-1/2 68-7/16 28 24 36 10.88 4.14 15.92 29-31/32 19-7/8 4.14 No 0.4 0.6 32 66
37-1/2 68-7/16 32 24 36 12.49 4.69 17.82 33-31/32 19-7/8 4.69 No 0.4 0.6 36 66
45-1/2 68-7/16 40 24 36 15.71 5.79 21.62 41-31/32 19-7/8 5.79 No 0.4 0.6 44 66
21-1/2 68-7/16 16 24 36 6.04 2.48 10.22 17-31/32 19-7/8 2.48 No 0.4 0.6 20 66
25-1/2 68-7/16 20 24 36 7.65 3.03 12.12 21-31/32 19-7/8 3.03 No 0.4 0.6 24 66
29-1/2 68-7/16 24 24 36 9.26 3.58 14.02 25-31/32 19-7/8 3.58 No 0.4 0.6 28 66
Ultra Series Sterling Double Hung Bay
Sterling Cottage Style DH with Class 5 Balances High and Impact Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
33-1/2 68-7/16 28 24 36 10.88 4.14 15.92 29-31/32 19-7/8 4.14 No 0.4 0.6 32 66
29-1/2 68-7/16 24 24 36 9.26 3.58 14.02 25-31/32 19-7/8 3.58 No 0.4 0.6 28 66
25-1/2 68-7/16 20 24 36 7.65 3.03 12.12 21-31/32 19-7/8 3.03 No 0.4 0.6 24 66
21-1/2 68-7/16 16 24 36 6.04 2.48 10.22 17-31/32 19-7/8 2.48 No 0.4 0.6 20 66
41-1/2 68-7/16 36 24 36 14.1 5.24 19.72 37-31/32 19-7/8 5.24 No 0.4 0.6 40 66
37-1/2 68-7/16 32 24 36 12.49 4.69 17.82 33-31/32 19-7/8 4.69 No 0.4 0.6 36 66
45-1/2 68-7/16 40 24 36 15.71 5.79 21.62 41-31/32 19-7/8 5.79 No 0.4 0.6 44 66
Ultra Series Sterling Double Hung
Sterling Cottage Style DH with Class 5 Balances Standard Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
21-1/2 68-7/16 16 24 36 6.04 2.54 10.22 17-31/32 20-3/8 2.54 No 0.4 0.6 20 66
25-1/2 68-7/16 20 24 36 7.65 3.11 12.12 21-31/32 20-3/8 3.11 No 0.4 0.6 24 66
29-1/2 68-7/16 24 24 36 9.26 3.67 14.02 25-31/32 20-3/8 3.67 No 0.4 0.6 28 66
31-1/2 68-7/16 26 24 36 10.07 3.96 14.97 27-31/32 20-3/8 3.96 No 0.4 0.6 30 66
33-1/2 68-7/16 28 24 36 10.88 4.24 15.92 29-31/32 20-3/8 4.24 No 0.4 0.6 32 66
35-1/2 68-7/16 30 24 36 11.68 4.52 16.87 31-31/32 20-3/8 4.52 No 0.4 0.6 34 66
37-1/2 68-7/16 32 24 36 12.49 4.81 17.82 33-31/32 20-3/8 4.81 No 0.4 0.6 36 66
41-1/2 68-7/16 36 24 36 14.1 5.37 19.72 37-31/32 20-3/8 5.37 No 0.4 0.6 40 66
45-1/2 68-7/16 40 24 36 15.71 5.94 21.62 41-31/32 20-3/8 5.94 No 0.4 0.6 44 66
Ultra Series Sterling Double Hung Bay
Sterling Cottage Style DH with Class 5 Balances Standard Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
45-1/2 68-7/16 40 24 36 15.71 5.94 21.62 41-31/32 20-3/8 5.94 No 0.4 0.6 44 66
41-1/2 68-7/16 36 24 36 14.1 5.37 19.72 37-31/32 20-3/8 5.37 No 0.4 0.6 40 66
37-1/2 68-7/16 32 24 36 12.49 4.81 17.82 33-31/32 20-3/8 4.81 No 0.4 0.6 36 66
35-1/2 68-7/16 30 24 36 11.68 4.52 16.87 31-31/32 20-3/8 4.52 No 0.4 0.6 34 66
33-1/2 68-7/16 28 24 36 10.88 4.24 15.92 29-31/32 20-3/8 4.24 No 0.4 0.6 32 66
31-1/2 68-7/16 26 24 36 10.07 3.96 14.97 27-31/32 20-3/8 3.96 No 0.4 0.6 30 66
29-1/2 68-7/16 24 24 36 9.26 3.67 14.02 25-31/32 20-3/8 3.67 No 0.4 0.6 28 66
25-1/2 68-7/16 20 24 36 7.65 3.11 12.12 21-31/32 20-3/8 3.11 No 0.4 0.6 24 66
21-1/2 68-7/16 16 24 36 6.04 2.54 10.22 17-31/32 20-3/8 2.54 No 0.4 0.6 20 66
Ultra Series Sterling Double Hung
Sterling DH High and Impact Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
21-1/2 36-7/16 16 14 2.71 1.48 5.44 17-31/32 11-7/8 1.48 No 20 34
21-1/2 40-7/16 16 16 3.12 1.73 6.04 17-31/32 13-7/8 1.73 No 20 38
21-1/2 48-7/16 16 20 3.96 2.23 7.23 17-31/32 17-7/8 2.23 No 20 46
21-1/2 52-7/16 16 22 4.38 2.48 7.83 17-31/32 19-7/8 2.48 No 20 50
21-1/2 56-7/16 16 24 4.79 2.73 8.43 17-31/32 21-7/8 2.73 No 20 54
21-1/2 60-7/16 16 26 5.21 2.98 9.02 17-31/32 23-7/8 2.98 No 20 58
21-1/2 64-7/16 16 28 5.62 3.23 9.62 17-31/32 25-7/8 3.23 No 20 62
21-1/2 68-7/16 16 30 6.04 3.48 10.22 17-31/32 27-7/8 3.48 No 20 66
21-1/2 72-7/16 16 32 6.46 3.73 10.82 17-31/32 29-7/8 3.73 No 20 70
21-1/2 76-7/16 16 34 6.88 3.98 11.41 17-31/32 31-7/8 3.98 No 20 74
21-1/2 80-7/16 16 36 7.29 4.23 12.01 17-31/32 33-7/8 4.23 No 20 78
25-1/2 36-7/16 20 14 3.43 1.81 6.45 21-31/32 11-7/8 1.81 No 24 34
25-1/2 40-7/16 20 16 3.96 2.12 7.16 21-31/32 13-7/8 2.12 No 24 38
25-1/2 48-7/16 20 20 5.01 2.73 8.58 21-31/32 17-7/8 2.73 No 24 46
25-1/2 52-7/16 20 22 5.54 3.03 9.29 21-31/32 19-7/8 3.03 No 24 50
25-1/2 56-7/16 20 24 6.07 3.34 9.99 21-31/32 21-7/8 3.34 No 24 54
25-1/2 60-7/16 20 26 6.6 3.64 10.7 21-31/32 23-7/8 3.64 No 24 58
25-1/2 64-7/16 20 28 7.12 3.95 11.41 21-31/32 25-7/8 3.95 No 24 62
25-1/2 68-7/16 20 30 7.65 4.25 12.12 21-31/32 27-7/8 4.25 No 24 66
25-1/2 72-7/16 20 32 8.18 4.56 12.83 21-31/32 29-7/8 4.56 No 24 70
25-1/2 76-7/16 20 34 8.71 4.86 13.54 21-31/32 31-7/8 4.86 No 24 74
25-1/2 80-7/16 20 36 9.24 5.17 14.24 21-31/32 33-7/8 5.17 No 24 78
29-1/2 36-7/16 24 14 4.15 2.14 7.46 25-31/32 11-7/8 2.14 No 28 34
29-1/2 40-7/16 24 16 4.79 2.5 8.28 25-31/32 13-7/8 2.5 No 28 38
29-1/2 48-7/16 24 20 6.07 3.22 9.92 25-31/32 17-7/8 3.22 No 28 46
29-1/2 52-7/16 24 22 6.71 3.58 10.74 25-31/32 19-7/8 3.58 No 28 50
29-1/2 56-7/16 24 24 7.35 3.94 11.56 25-31/32 21-7/8 3.94 No 28 54
29-1/2 60-7/16 24 26 7.99 4.31 12.38 25-31/32 23-7/8 4.31 No 28 58
29-1/2 64-7/16 24 28 8.62 4.67 13.2 25-31/32 25-7/8 4.67 No 28 62
29-1/2 68-7/16 24 30 9.26 5.03 14.02 25-31/32 27-7/8 5.03 No 28 66
29-1/2 72-7/16 24 32 9.9 5.39 14.84 25-31/32 29-7/8 5.39 No 28 70
29-1/2 76-7/16 24 34 10.54 5.75 15.66 25-31/32 31-7/8 5.75 Yes 28 74
29-1/2 80-7/16 24 36 11.18 6.11 16.48 25-31/32 33-7/8 6.11 Yes 28 78
31-1/2 36-7/16 26 14 4.51 2.31 7.97 27-31/32 11-7/8 2.31 No 30 34
31-1/2 40-7/16 26 16 5.21 2.69 8.85 27-31/32 13-7/8 2.69 No 30 38
31-1/2 48-7/16 26 20 6.6 3.47 10.6 27-31/32 17-7/8 3.47 No 30 46
31-1/2 52-7/16 26 22 7.29 3.86 11.47 27-31/32 19-7/8 3.86 No 30 50
31-1/2 56-7/16 26 24 7.99 4.25 12.35 27-31/32 21-7/8 4.25 No 30 54
31-1/2 60-7/16 26 26 8.68 4.64 13.22 27-31/32 23-7/8 4.64 No 30 58
31-1/2 64-7/16 26 28 9.38 5.03 14.1 27-31/32 25-7/8 5.03 No 30 62
31-1/2 68-7/16 26 30 10.07 5.41 14.97 27-31/32 27-7/8 5.41 No 30 66
31-1/2 72-7/16 26 32 10.76 5.8 15.85 27-31/32 29-7/8 5.8 Yes 30 70
31-1/2 76-7/16 26 34 11.46 6.19 16.72 27-31/32 31-7/8 6.19 Yes 30 74
31-1/2 80-7/16 26 36 12.15 6.58 17.6 27-31/32 33-7/8 6.58 Yes 30 78
33-1/2 36-7/16 28 14 4.88 2.47 8.48 29-31/32 11-7/8 2.47 No 32 34
33-1/2 40-7/16 28 16 5.62 2.89 9.41 29-31/32 13-7/8 2.89 No 32 38
33-1/2 48-7/16 28 20 7.12 3.72 11.27 29-31/32 17-7/8 3.72 No 32 46
33-1/2 52-7/16 28 22 7.88 4.14 12.2 29-31/32 19-7/8 4.14 No 32 50
33-1/2 56-7/16 28 24 8.62 4.55 13.13 29-31/32 21-7/8 4.55 No 32 54
33-1/2 60-7/16 28 26 9.38 4.97 14.06 29-31/32 23-7/8 4.97 No 32 58
33-1/2 64-7/16 28 28 10.12 5.39 14.99 29-31/32 25-7/8 5.39 No 32 62
33-1/2 68-7/16 28 30 10.88 5.8 15.92 29-31/32 27-7/8 5.8 Yes 32 66
33-1/2 72-7/16 28 32 11.62 6.22 16.85 29-31/32 29-7/8 6.22 Yes 32 70
33-1/2 76-7/16 28 34 12.38 6.63 17.78 29-31/32 31-7/8 6.63 Yes 32 74
33-1/2 80-7/16 28 36 13.12 7.05 18.71 29-31/32 33-7/8 7.05 Yes 32 78
35-1/2 36-7/16 30 14 5.24 2.64 8.98 31-31/32 11-7/8 2.64 No 34 34
35-1/2 40-7/16 30 16 6.04 3.08 9.97 31-31/32 13-7/8 3.08 No 34 38
35-1/2 48-7/16 30 20 7.65 3.97 11.94 31-31/32 17-7/8 3.97 No 34 46
35-1/2 52-7/16 30 22 8.46 4.41 12.93 31-31/32 19-7/8 4.41 No 34 50
35-1/2 56-7/16 30 24 9.26 4.86 13.91 31-31/32 21-7/8 4.86 No 34 54
35-1/2 60-7/16 30 26 10.07 5.3 14.9 31-31/32 23-7/8 5.3 No 34 58
35-1/2 64-7/16 30 28 10.88 5.74 15.89 31-31/32 25-7/8 5.74 Yes 34 62
35-1/2 68-7/16 30 30 11.68 6.19 16.87 31-31/32 27-7/8 6.19 Yes 34 66
35-1/2 72-7/16 30 32 12.49 6.63 17.86 31-31/32 29-7/8 6.63 Yes 34 70
35-1/2 76-7/16 30 34 13.29 7.08 18.84 31-31/32 31-7/8 7.08 Yes 34 74
35-1/2 80-7/16 30 36 14.1 7.52 19.83 31-31/32 33-7/8 7.52 Yes 34 78
37-1/2 36-7/16 32 14 5.6 2.8 9.49 33-31/32 11-7/8 2.8 No 36 34
37-1/2 40-7/16 32 16 6.46 3.27 10.53 33-31/32 13-7/8 3.27 No 36 38
37-1/2 48-7/16 32 20 8.18 4.22 12.61 33-31/32 17-7/8 4.22 No 36 46
37-1/2 52-7/16 32 22 9.04 4.69 13.66 33-31/32 19-7/8 4.69 No 36 50
37-1/2 56-7/16 32 24 9.9 5.16 14.7 33-31/32 21-7/8 5.16 No 36 54
37-1/2 60-7/16 32 26 10.76 5.63 15.74 33-31/32 23-7/8 5.63 No 36 58
37-1/2 64-7/16 32 28 11.62 6.1 16.78 33-31/32 25-7/8 6.1 Yes 36 62
37-1/2 68-7/16 32 30 12.49 6.58 17.82 33-31/32 27-7/8 6.58 Yes 36 66
37-1/2 72-7/16 32 32 13.35 7.05 18.86 33-31/32 29-7/8 7.05 Yes 36 70
37-1/2 76-7/16 32 34 14.21 7.52 19.91 33-31/32 31-7/8 7.52 Yes 36 74
37-1/2 80-7/16 32 36 15.07 7.99 20.95 33-31/32 33-7/8 7.99 Yes 36 78
41-1/2 36-7/16 36 14 6.32 3.13 10.5 37-31/32 11-7/8 3.13 No 40 34
41-1/2 40-7/16 36 16 7.29 3.66 11.65 37-31/32 13-7/8 3.66 No 40 38
41-1/2 48-7/16 36 20 9.24 4.71 13.96 37-31/32 17-7/8 4.71 No 40 46
41-1/2 52-7/16 36 22 10.21 5.24 15.11 37-31/32 19-7/8 5.24 No 40 50
41-1/2 56-7/16 36 24 11.18 5.77 16.26 37-31/32 21-7/8 5.77 No 40 54
41-1/2 60-7/16 36 26 12.15 6.3 17.42 37-31/32 23-7/8 6.3 No 40 58
41-1/2 64-7/16 36 28 13.12 6.82 18.57 37-31/32 25-7/8 6.82 Yes 40 62
41-1/2 68-7/16 36 30 14.1 7.35 19.72 37-31/32 27-7/8 7.35 Yes 40 66
41-1/2 72-7/16 36 32 15.07 7.88 20.88 37-31/32 29-7/8 7.88 Yes 40 70
41-1/2 76-7/16 36 34 16.04 8.4 22.03 37-31/32 31-7/8 8.4 Yes 40 74
41-1/2 80-7/16 36 36 17.01 8.93 23.18 37-31/32 33-7/8 8.93 Yes 40 78
45-1/2 36-7/16 40 14 7.04 3.46 11.51 41-31/32 11-7/8 3.46 No 44 34
45-1/2 40-7/16 40 16 8.12 4.04 12.78 41-31/32 13-7/8 4.04 No 44 38
45-1/2 48-7/16 40 20 10.29 5.21 15.3 41-31/32 17-7/8 5.21 No 44 46
45-1/2 52-7/16 40 22 11.38 5.79 16.57 41-31/32 19-7/8 5.79 No 44 50
45-1/2 56-7/16 40 24 12.46 6.38 17.83 41-31/32 21-7/8 6.38 No 44 54
45-1/2 60-7/16 40 26 13.54 6.96 19.1 41-31/32 23-7/8 6.96 No 44 58
45-1/2 64-7/16 40 28 14.62 7.54 20.36 41-31/32 25-7/8 7.54 Yes 44 62
45-1/2 68-7/16 40 30 15.71 8.12 21.62 41-31/32 27-7/8 8.12 Yes 44 66
45-1/2 72-7/16 40 32 16.79 8.71 22.89 41-31/32 29-7/8 8.71 Yes 44 70
45-1/2 76-7/16 40 34 17.88 9.29 24.15 41-31/32 31-7/8 9.29 Yes 44 74
45-1/2 80-7/16 40 36 18.96 9.87 25.42 41-31/32 33-7/8 9.87 Yes 44 78
Ultra Series Sterling Double Hung Bay
Sterling DH High and Impact Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
45-1/2 80-7/16 40 36 18.96 9.87 25.42 41-31/32 33-7/8 9.87 Yes 44 78
45-1/2 76-7/16 40 34 17.88 9.29 24.15 41-31/32 31-7/8 9.29 Yes 44 74
45-1/2 72-7/16 40 32 16.79 8.71 22.89 41-31/32 29-7/8 8.71 Yes 44 70
45-1/2 68-7/16 40 30 15.71 8.12 21.62 41-31/32 27-7/8 8.12 Yes 44 66
45-1/2 64-7/16 40 28 14.62 7.54 20.36 41-31/32 25-7/8 7.54 Yes 44 62
45-1/2 60-7/16 40 26 13.54 6.96 19.1 41-31/32 23-7/8 6.96 No 44 58
45-1/2 56-7/16 40 24 12.46 6.38 17.83 41-31/32 21-7/8 6.38 No 44 54
45-1/2 52-7/16 40 22 11.38 5.79 16.57 41-31/32 19-7/8 5.79 No 44 50
45-1/2 48-7/16 40 20 10.29 5.21 15.3 41-31/32 17-7/8 5.21 No 44 46
45-1/2 40-7/16 40 16 8.12 4.04 12.78 41-31/32 13-7/8 4.04 No 44 38
45-1/2 36-7/16 40 14 7.04 3.46 11.51 41-31/32 11-7/8 3.46 No 44 34
41-1/2 80-7/16 36 36 17.01 8.93 23.18 37-31/32 33-7/8 8.93 Yes 40 78
41-1/2 76-7/16 36 34 16.04 8.4 22.03 37-31/32 31-7/8 8.4 Yes 40 74
41-1/2 72-7/16 36 32 15.07 7.88 20.88 37-31/32 29-7/8 7.88 Yes 40 70
41-1/2 68-7/16 36 30 14.1 7.35 19.72 37-31/32 27-7/8 7.35 Yes 40 66
41-1/2 64-7/16 36 28 13.12 6.82 18.57 37-31/32 25-7/8 6.82 Yes 40 62
41-1/2 60-7/16 36 26 12.15 6.3 17.42 37-31/32 23-7/8 6.3 No 40 58
41-1/2 56-7/16 36 24 11.18 5.77 16.26 37-31/32 21-7/8 5.77 No 40 54
41-1/2 52-7/16 36 22 10.21 5.24 15.11 37-31/32 19-7/8 5.24 No 40 50
41-1/2 48-7/16 36 20 9.24 4.71 13.96 37-31/32 17-7/8 4.71 No 40 46
41-1/2 40-7/16 36 16 7.29 3.66 11.65 37-31/32 13-7/8 3.66 No 40 38
41-1/2 36-7/16 36 14 6.32 3.13 10.5 37-31/32 11-7/8 3.13 No 40 34
37-1/2 80-7/16 32 36 15.07 7.99 20.95 33-31/32 33-7/8 7.99 Yes 36 78
37-1/2 76-7/16 32 34 14.21 7.52 19.91 33-31/32 31-7/8 7.52 Yes 36 74
37-1/2 72-7/16 32 32 13.35 7.05 18.86 33-31/32 29-7/8 7.05 Yes 36 70
37-1/2 68-7/16 32 30 12.49 6.58 17.82 33-31/32 27-7/8 6.58 Yes 36 66
37-1/2 64-7/16 32 28 11.62 6.1 16.78 33-31/32 25-7/8 6.1 Yes 36 62
37-1/2 60-7/16 32 26 10.76 5.63 15.74 33-31/32 23-7/8 5.63 No 36 58
37-1/2 56-7/16 32 24 9.9 5.16 14.7 33-31/32 21-7/8 5.16 No 36 54
37-1/2 52-7/16 32 22 9.04 4.69 13.66 33-31/32 19-7/8 4.69 No 36 50
37-1/2 48-7/16 32 20 8.18 4.22 12.61 33-31/32 17-7/8 4.22 No 36 46
37-1/2 40-7/16 32 16 6.46 3.27 10.53 33-31/32 13-7/8 3.27 No 36 38
37-1/2 36-7/16 32 14 5.6 2.8 9.49 33-31/32 11-7/8 2.8 No 36 34
35-1/2 80-7/16 30 36 14.1 7.52 19.83 31-31/32 33-7/8 7.52 Yes 34 78
35-1/2 76-7/16 30 34 13.29 7.08 18.84 31-31/32 31-7/8 7.08 Yes 34 74
35-1/2 72-7/16 30 32 12.49 6.63 17.86 31-31/32 29-7/8 6.63 Yes 34 70
35-1/2 68-7/16 30 30 11.68 6.19 16.87 31-31/32 27-7/8 6.19 Yes 34 66
35-1/2 64-7/16 30 28 10.88 5.74 15.89 31-31/32 25-7/8 5.74 Yes 34 62
35-1/2 60-7/16 30 26 10.07 5.3 14.9 31-31/32 23-7/8 5.3 No 34 58
35-1/2 56-7/16 30 24 9.26 4.86 13.91 31-31/32 21-7/8 4.86 No 34 54
35-1/2 52-7/16 30 22 8.46 4.41 12.93 31-31/32 19-7/8 4.41 No 34 50
35-1/2 48-7/16 30 20 7.65 3.97 11.94 31-31/32 17-7/8 3.97 No 34 46
35-1/2 40-7/16 30 16 6.04 3.08 9.97 31-31/32 13-7/8 3.08 No 34 38
35-1/2 36-7/16 30 14 5.24 2.64 8.98 31-31/32 11-7/8 2.64 No 34 34
33-1/2 80-7/16 28 36 13.12 7.05 18.71 29-31/32 33-7/8 7.05 Yes 32 78
33-1/2 76-7/16 28 34 12.38 6.63 17.78 29-31/32 31-7/8 6.63 Yes 32 74
33-1/2 72-7/16 28 32 11.62 6.22 16.85 29-31/32 29-7/8 6.22 Yes 32 70
33-1/2 68-7/16 28 30 10.88 5.8 15.92 29-31/32 27-7/8 5.8 Yes 32 66
33-1/2 64-7/16 28 28 10.12 5.39 14.99 29-31/32 25-7/8 5.39 No 32 62
33-1/2 60-7/16 28 26 9.38 4.97 14.06 29-31/32 23-7/8 4.97 No 32 58
33-1/2 56-7/16 28 24 8.62 4.55 13.13 29-31/32 21-7/8 4.55 No 32 54
33-1/2 52-7/16 28 22 7.88 4.14 12.2 29-31/32 19-7/8 4.14 No 32 50
33-1/2 48-7/16 28 20 7.12 3.72 11.27 29-31/32 17-7/8 3.72 No 32 46
33-1/2 40-7/16 28 16 5.62 2.89 9.41 29-31/32 13-7/8 2.89 No 32 38
33-1/2 36-7/16 28 14 4.88 2.47 8.48 29-31/32 11-7/8 2.47 No 32 34
31-1/2 80-7/16 26 36 12.15 6.58 17.6 27-31/32 33-7/8 6.58 Yes 30 78
31-1/2 76-7/16 26 34 11.46 6.19 16.72 27-31/32 31-7/8 6.19 Yes 30 74
31-1/2 72-7/16 26 32 10.76 5.8 15.85 27-31/32 29-7/8 5.8 Yes 30 70
31-1/2 68-7/16 26 30 10.07 5.41 14.97 27-31/32 27-7/8 5.41 No 30 66
31-1/2 64-7/16 26 28 9.38 5.03 14.1 27-31/32 25-7/8 5.03 No 30 62
31-1/2 60-7/16 26 26 8.68 4.64 13.22 27-31/32 23-7/8 4.64 No 30 58
31-1/2 56-7/16 26 24 7.99 4.25 12.35 27-31/32 21-7/8 4.25 No 30 54
31-1/2 52-7/16 26 22 7.29 3.86 11.47 27-31/32 19-7/8 3.86 No 30 50
31-1/2 48-7/16 26 20 6.6 3.47 10.6 27-31/32 17-7/8 3.47 No 30 46
31-1/2 40-7/16 26 16 5.21 2.69 8.85 27-31/32 13-7/8 2.69 No 30 38
31-1/2 36-7/16 26 14 4.51 2.31 7.97 27-31/32 11-7/8 2.31 No 30 34
29-1/2 80-7/16 24 36 11.18 6.11 16.48 25-31/32 33-7/8 6.11 Yes 28 78
29-1/2 76-7/16 24 34 10.54 5.75 15.66 25-31/32 31-7/8 5.75 Yes 28 74
29-1/2 72-7/16 24 32 9.9 5.39 14.84 25-31/32 29-7/8 5.39 No 28 70
29-1/2 68-7/16 24 30 9.26 5.03 14.02 25-31/32 27-7/8 5.03 No 28 66
29-1/2 64-7/16 24 28 8.62 4.67 13.2 25-31/32 25-7/8 4.67 No 28 62
29-1/2 60-7/16 24 26 7.99 4.31 12.38 25-31/32 23-7/8 4.31 No 28 58
29-1/2 56-7/16 24 24 7.35 3.94 11.56 25-31/32 21-7/8 3.94 No 28 54
29-1/2 52-7/16 24 22 6.71 3.58 10.74 25-31/32 19-7/8 3.58 No 28 50
29-1/2 48-7/16 24 20 6.07 3.22 9.92 25-31/32 17-7/8 3.22 No 28 46
29-1/2 40-7/16 24 16 4.79 2.5 8.28 25-31/32 13-7/8 2.5 No 28 38
29-1/2 36-7/16 24 14 4.15 2.14 7.46 25-31/32 11-7/8 2.14 No 28 34
25-1/2 80-7/16 20 36 9.24 5.17 14.24 21-31/32 33-7/8 5.17 No 24 78
25-1/2 76-7/16 20 34 8.71 4.86 13.54 21-31/32 31-7/8 4.86 No 24 74
25-1/2 72-7/16 20 32 8.18 4.56 12.83 21-31/32 29-7/8 4.56 No 24 70
25-1/2 68-7/16 20 30 7.65 4.25 12.12 21-31/32 27-7/8 4.25 No 24 66
25-1/2 64-7/16 20 28 7.12 3.95 11.41 21-31/32 25-7/8 3.95 No 24 62
25-1/2 60-7/16 20 26 6.6 3.64 10.7 21-31/32 23-7/8 3.64 No 24 58
25-1/2 56-7/16 20 24 6.07 3.34 9.99 21-31/32 21-7/8 3.34 No 24 54
25-1/2 52-7/16 20 22 5.54 3.03 9.29 21-31/32 19-7/8 3.03 No 24 50
25-1/2 48-7/16 20 20 5.01 2.73 8.58 21-31/32 17-7/8 2.73 No 24 46
25-1/2 40-7/16 20 16 3.96 2.12 7.16 21-31/32 13-7/8 2.12 No 24 38
25-1/2 36-7/16 20 14 3.43 1.81 6.45 21-31/32 11-7/8 1.81 No 24 34
21-1/2 80-7/16 16 36 7.29 4.23 12.01 17-31/32 33-7/8 4.23 No 20 78
21-1/2 76-7/16 16 34 6.88 3.98 11.41 17-31/32 31-7/8 3.98 No 20 74
21-1/2 72-7/16 16 32 6.46 3.73 10.82 17-31/32 29-7/8 3.73 No 20 70
21-1/2 68-7/16 16 30 6.04 3.48 10.22 17-31/32 27-7/8 3.48 No 20 66
21-1/2 64-7/16 16 28 5.62 3.23 9.62 17-31/32 25-7/8 3.23 No 20 62
21-1/2 60-7/16 16 26 5.21 2.98 9.02 17-31/32 23-7/8 2.98 No 20 58
21-1/2 56-7/16 16 24 4.79 2.73 8.43 17-31/32 21-7/8 2.73 No 20 54
21-1/2 52-7/16 16 22 4.38 2.48 7.83 17-31/32 19-7/8 2.48 No 20 50
21-1/2 48-7/16 16 20 3.96 2.23 7.23 17-31/32 17-7/8 2.23 No 20 46
21-1/2 40-7/16 16 16 3.12 1.73 6.04 17-31/32 13-7/8 1.73 No 20 38
21-1/2 36-7/16 16 14 2.71 1.48 5.44 17-31/32 11-7/8 1.48 No 20 34
Ultra Series Sterling Double Hung
Sterling DH Standard Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
21-1/2 36-7/16 16 14 2.71 1.54 5.44 17-31/32 12-3/8 1.54 No 20 34
21-1/2 40-7/16 16 16 3.12 1.79 6.04 17-31/32 14-3/8 1.79 No 20 38
21-1/2 48-7/16 16 20 3.96 2.29 7.23 17-31/32 18-3/8 2.29 No 20 46
21-1/2 52-7/16 16 22 4.38 2.54 7.83 17-31/32 20-3/8 2.54 No 20 50
21-1/2 56-7/16 16 24 4.79 2.79 8.43 17-31/32 22-3/8 2.79 No 20 54
21-1/2 60-7/16 16 26 5.21 3.04 9.02 17-31/32 24-3/8 3.04 No 20 58
21-1/2 64-7/16 16 28 5.62 3.29 9.62 17-31/32 26-3/8 3.29 No 20 62
21-1/2 68-7/16 16 30 6.04 3.54 10.22 17-31/32 28-3/8 3.54 No 20 66
21-1/2 72-7/16 16 32 6.46 3.79 10.82 17-31/32 30-3/8 3.79 No 20 70
21-1/2 76-7/16 16 34 6.88 4.04 11.41 17-31/32 32-3/8 4.04 No 20 74
21-1/2 80-7/16 16 36 7.29 4.29 12.01 17-31/32 34-3/8 4.29 No 20 78
25-1/2 36-7/16 20 14 3.43 1.89 6.45 21-31/32 12-3/8 1.89 No 24 34
25-1/2 40-7/16 20 16 3.96 2.19 7.16 21-31/32 14-3/8 2.19 No 24 38
25-1/2 48-7/16 20 20 5.01 2.8 8.58 21-31/32 18-3/8 2.8 No 24 46
25-1/2 52-7/16 20 22 5.54 3.11 9.29 21-31/32 20-3/8 3.11 No 24 50
25-1/2 56-7/16 20 24 6.07 3.41 9.99 21-31/32 22-3/8 3.41 No 24 54
25-1/2 60-7/16 20 26 6.6 3.72 10.7 21-31/32 24-3/8 3.72 No 24 58
25-1/2 64-7/16 20 28 7.12 4.02 11.41 21-31/32 26-3/8 4.02 No 24 62
25-1/2 68-7/16 20 30 7.65 4.33 12.12 21-31/32 28-3/8 4.33 No 24 66
25-1/2 72-7/16 20 32 8.18 4.63 12.83 21-31/32 30-3/8 4.63 No 24 70
25-1/2 76-7/16 20 34 8.71 4.94 13.54 21-31/32 32-3/8 4.94 No 24 74
25-1/2 80-7/16 20 36 9.24 5.24 14.24 21-31/32 34-3/8 5.24 No 24 78
29-1/2 36-7/16 24 14 4.15 2.23 7.46 25-31/32 12-3/8 2.23 No 28 34
29-1/2 40-7/16 24 16 4.79 2.59 8.28 25-31/32 14-3/8 2.59 No 28 38
29-1/2 48-7/16 24 20 6.07 3.31 9.92 25-31/32 18-3/8 3.31 No 28 46
29-1/2 52-7/16 24 22 6.71 3.67 10.74 25-31/32 20-3/8 3.67 No 28 50
29-1/2 56-7/16 24 24 7.35 4.04 11.56 25-31/32 22-3/8 4.04 No 28 54
29-1/2 60-7/16 24 26 7.99 4.4 12.38 25-31/32 24-3/8 4.4 No 28 58
29-1/2 64-7/16 24 28 8.62 4.76 13.2 25-31/32 26-3/8 4.76 No 28 62
29-1/2 68-7/16 24 30 9.26 5.12 14.02 25-31/32 28-3/8 5.12 No 28 66
29-1/2 72-7/16 24 32 9.9 5.48 14.84 25-31/32 30-3/8 5.48 No 28 70
29-1/2 76-7/16 24 34 10.54 5.84 15.66 25-31/32 32-3/8 5.84 Yes 28 74
29-1/2 80-7/16 24 36 11.18 6.2 16.48 25-31/32 34-3/8 6.2 Yes 28 78
31-1/2 36-7/16 26 14 4.51 2.4 7.97 27-31/32 12-3/8 2.4 No 30 34
31-1/2 40-7/16 26 16 5.21 2.79 8.85 27-31/32 14-3/8 2.79 No 30 38
31-1/2 48-7/16 26 20 6.6 3.57 10.6 27-31/32 18-3/8 3.57 No 30 46
31-1/2 52-7/16 26 22 7.29 3.96 11.47 27-31/32 20-3/8 3.96 No 30 50
31-1/2 56-7/16 26 24 7.99 4.35 12.35 27-31/32 22-3/8 4.35 No 30 54
31-1/2 60-7/16 26 26 8.68 4.73 13.22 27-31/32 24-3/8 4.73 No 30 58
31-1/2 64-7/16 26 28 9.38 5.12 14.1 27-31/32 26-3/8 5.12 No 30 62
31-1/2 68-7/16 26 30 10.07 5.51 14.97 27-31/32 28-3/8 5.51 No 30 66
31-1/2 72-7/16 26 32 10.76 5.9 15.85 27-31/32 30-3/8 5.9 Yes 30 70
31-1/2 76-7/16 26 34 11.46 6.29 16.72 27-31/32 32-3/8 6.29 Yes 30 74
31-1/2 80-7/16 26 36 12.15 6.68 17.6 27-31/32 34-3/8 6.68 Yes 30 78
33-1/2 36-7/16 28 14 4.88 2.58 8.48 29-31/32 12-3/8 2.58 No 32 34
33-1/2 40-7/16 28 16 5.62 2.99 9.41 29-31/32 14-3/8 2.99 No 32 38
33-1/2 48-7/16 28 20 7.12 3.82 11.27 29-31/32 18-3/8 3.82 No 32 46
33-1/2 52-7/16 28 22 7.88 4.24 12.2 29-31/32 20-3/8 4.24 No 32 50
33-1/2 56-7/16 28 24 8.62 4.66 13.13 29-31/32 22-3/8 4.66 No 32 54
33-1/2 60-7/16 28 26 9.38 5.07 14.06 29-31/32 24-3/8 5.07 No 32 58
33-1/2 64-7/16 28 28 10.12 5.49 14.99 29-31/32 26-3/8 5.49 No 32 62
33-1/2 68-7/16 28 30 10.88 5.91 15.92 29-31/32 28-3/8 5.91 Yes 32 66
33-1/2 72-7/16 28 32 11.62 6.32 16.85 29-31/32 30-3/8 6.32 Yes 32 70
33-1/2 76-7/16 28 34 12.38 6.74 17.78 29-31/32 32-3/8 6.74 Yes 32 74
33-1/2 80-7/16 28 36 13.12 7.15 18.71 29-31/32 34-3/8 7.15 Yes 32 78
35-1/2 36-7/16 30 14 5.24 2.75 8.98 31-31/32 12-3/8 2.75 No 34 34
35-1/2 40-7/16 30 16 6.04 3.19 9.97 31-31/32 14-3/8 3.19 No 34 38
35-1/2 48-7/16 30 20 7.65 4.08 11.94 31-31/32 18-3/8 4.08 No 34 46
35-1/2 52-7/16 30 22 8.46 4.52 12.93 31-31/32 20-3/8 4.52 No 34 50
35-1/2 56-7/16 30 24 9.26 4.97 13.91 31-31/32 22-3/8 4.97 No 34 54
35-1/2 60-7/16 30 26 10.07 5.41 14.9 31-31/32 24-3/8 5.41 No 34 58
35-1/2 64-7/16 30 28 10.88 5.86 15.89 31-31/32 26-3/8 5.86 Yes 34 62
35-1/2 68-7/16 30 30 11.68 6.3 16.87 31-31/32 28-3/8 6.3 Yes 34 66
35-1/2 72-7/16 30 32 12.49 6.74 17.86 31-31/32 30-3/8 6.74 Yes 34 70
35-1/2 76-7/16 30 34 13.29 7.19 18.84 31-31/32 32-3/8 7.19 Yes 34 74
35-1/2 80-7/16 30 36 14.1 7.63 19.83 31-31/32 34-3/8 7.63 Yes 34 78
37-1/2 36-7/16 32 14 5.6 2.92 9.49 33-31/32 12-3/8 2.92 No 36 34
37-1/2 40-7/16 32 16 6.46 3.39 10.53 33-31/32 14-3/8 3.39 No 36 38
37-1/2 48-7/16 32 20 8.18 4.33 12.61 33-31/32 18-3/8 4.33 No 36 46
37-1/2 52-7/16 32 22 9.04 4.81 13.66 33-31/32 20-3/8 4.81 No 36 50
37-1/2 56-7/16 32 24 9.9 5.28 14.7 33-31/32 22-3/8 5.28 No 36 54
37-1/2 60-7/16 32 26 10.76 5.75 15.74 33-31/32 24-3/8 5.75 Yes 36 58
37-1/2 64-7/16 32 28 11.62 6.22 16.78 33-31/32 26-3/8 6.22 Yes 36 62
37-1/2 68-7/16 32 30 12.49 6.69 17.82 33-31/32 28-3/8 6.69 Yes 36 66
37-1/2 72-7/16 32 32 13.35 7.17 18.86 33-31/32 30-3/8 7.17 Yes 36 70
37-1/2 76-7/16 32 34 14.21 7.64 19.91 33-31/32 32-3/8 7.64 Yes 36 74
37-1/2 80-7/16 32 36 15.07 8.11 20.95 33-31/32 34-3/8 8.11 Yes 36 78
41-1/2 36-7/16 36 14 6.32 3.26 10.5 37-31/32 12-3/8 3.26 No 40 34
41-1/2 40-7/16 36 16 7.29 3.79 11.65 37-31/32 14-3/8 3.79 No 40 38
41-1/2 48-7/16 36 20 9.24 4.84 13.96 37-31/32 18-3/8 4.84 No 40 46
41-1/2 52-7/16 36 22 10.21 5.37 15.11 37-31/32 20-3/8 5.37 No 40 50
41-1/2 56-7/16 36 24 11.18 5.9 16.26 37-31/32 22-3/8 5.9 No 40 54
41-1/2 60-7/16 36 26 12.15 6.43 17.42 37-31/32 24-3/8 6.43 Yes 40 58
41-1/2 64-7/16 36 28 13.12 6.95 18.57 37-31/32 26-3/8 6.95 Yes 40 62
41-1/2 68-7/16 36 30 14.1 7.48 19.72 37-31/32 28-3/8 7.48 Yes 40 66
41-1/2 72-7/16 36 32 15.07 8.01 20.88 37-31/32 30-3/8 8.01 Yes 40 70
41-1/2 76-7/16 36 34 16.04 8.54 22.03 37-31/32 32-3/8 8.54 Yes 40 74
41-1/2 80-7/16 36 36 17.01 9.06 23.18 37-31/32 34-3/8 9.06 Yes 40 78
45-1/2 36-7/16 40 14 7.04 3.61 11.51 41-31/32 12-3/8 3.61 No 44 34
45-1/2 40-7/16 40 16 8.12 4.19 12.78 41-31/32 14-3/8 4.19 No 44 38
45-1/2 48-7/16 40 20 10.29 5.36 15.3 41-31/32 18-3/8 5.36 No 44 46
45-1/2 52-7/16 40 22 11.38 5.94 16.57 41-31/32 20-3/8 5.94 No 44 50
45-1/2 56-7/16 40 24 12.46 6.52 17.83 41-31/32 22-3/8 6.52 No 44 54
45-1/2 60-7/16 40 26 13.54 7.1 19.1 41-31/32 24-3/8 7.1 Yes 44 58
45-1/2 64-7/16 40 28 14.62 7.69 20.36 41-31/32 26-3/8 7.69 Yes 44 62
45-1/2 68-7/16 40 30 15.71 8.27 21.62 41-31/32 28-3/8 8.27 Yes 44 66
45-1/2 72-7/16 40 32 16.79 8.85 22.89 41-31/32 30-3/8 8.85 Yes 44 70
45-1/2 76-7/16 40 34 17.88 9.44 24.15 41-31/32 32-3/8 9.44 Yes 44 74
45-1/2 80-7/16 40 36 18.96 10.02 25.42 41-31/32 34-3/8 10.02 Yes 44 78
Ultra Series Sterling Double Hung Bay
Sterling DH Standard Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
45-1/2 80-7/16 40 36 18.96 10.02 25.42 41-31/32 34-3/8 10.02 Yes 44 78
45-1/2 76-7/16 40 34 17.88 9.44 24.15 41-31/32 32-3/8 9.44 Yes 44 74
45-1/2 72-7/16 40 32 16.79 8.85 22.89 41-31/32 30-3/8 8.85 Yes 44 70
45-1/2 68-7/16 40 30 15.71 8.27 21.62 41-31/32 28-3/8 8.27 Yes 44 66
45-1/2 64-7/16 40 28 14.62 7.69 20.36 41-31/32 26-3/8 7.69 Yes 44 62
45-1/2 60-7/16 40 26 13.54 7.1 19.1 41-31/32 24-3/8 7.1 Yes 44 58
45-1/2 56-7/16 40 24 12.46 6.52 17.83 41-31/32 22-3/8 6.52 No 44 54
45-1/2 52-7/16 40 22 11.38 5.94 16.57 41-31/32 20-3/8 5.94 No 44 50
45-1/2 48-7/16 40 20 10.29 5.36 15.3 41-31/32 18-3/8 5.36 No 44 46
45-1/2 40-7/16 40 16 8.12 4.19 12.78 41-31/32 14-3/8 4.19 No 44 38
45-1/2 36-7/16 40 14 7.04 3.61 11.51 41-31/32 12-3/8 3.61 No 44 34
41-1/2 80-7/16 36 36 17.01 9.06 23.18 37-31/32 34-3/8 9.06 Yes 40 78
41-1/2 76-7/16 36 34 16.04 8.54 22.03 37-31/32 32-3/8 8.54 Yes 40 74
41-1/2 72-7/16 36 32 15.07 8.01 20.88 37-31/32 30-3/8 8.01 Yes 40 70
41-1/2 68-7/16 36 30 14.1 7.48 19.72 37-31/32 28-3/8 7.48 Yes 40 66
41-1/2 64-7/16 36 28 13.12 6.95 18.57 37-31/32 26-3/8 6.95 Yes 40 62
41-1/2 60-7/16 36 26 12.15 6.43 17.42 37-31/32 24-3/8 6.43 Yes 40 58
41-1/2 56-7/16 36 24 11.18 5.9 16.26 37-31/32 22-3/8 5.9 No 40 54
41-1/2 52-7/16 36 22 10.21 5.37 15.11 37-31/32 20-3/8 5.37 No 40 50
41-1/2 48-7/16 36 20 9.24 4.84 13.96 37-31/32 18-3/8 4.84 No 40 46
41-1/2 40-7/16 36 16 7.29 3.79 11.65 37-31/32 14-3/8 3.79 No 40 38
41-1/2 36-7/16 36 14 6.32 3.26 10.5 37-31/32 12-3/8 3.26 No 40 34
37-1/2 80-7/16 32 36 15.07 8.11 20.95 33-31/32 34-3/8 8.11 Yes 36 78
37-1/2 76-7/16 32 34 14.21 7.64 19.91 33-31/32 32-3/8 7.64 Yes 36 74
37-1/2 72-7/16 32 32 13.35 7.17 18.86 33-31/32 30-3/8 7.17 Yes 36 70
37-1/2 68-7/16 32 30 12.49 6.69 17.82 33-31/32 28-3/8 6.69 Yes 36 66
37-1/2 64-7/16 32 28 11.62 6.22 16.78 33-31/32 26-3/8 6.22 Yes 36 62
37-1/2 60-7/16 32 26 10.76 5.75 15.74 33-31/32 24-3/8 5.75 Yes 36 58
37-1/2 56-7/16 32 24 9.9 5.28 14.7 33-31/32 22-3/8 5.28 No 36 54
37-1/2 52-7/16 32 22 9.04 4.81 13.66 33-31/32 20-3/8 4.81 No 36 50
37-1/2 48-7/16 32 20 8.18 4.33 12.61 33-31/32 18-3/8 4.33 No 36 46
37-1/2 40-7/16 32 16 6.46 3.39 10.53 33-31/32 14-3/8 3.39 No 36 38
37-1/2 36-7/16 32 14 5.6 2.92 9.49 33-31/32 12-3/8 2.92 No 36 34
35-1/2 80-7/16 30 36 14.1 7.63 19.83 31-31/32 34-3/8 7.63 Yes 34 78
35-1/2 76-7/16 30 34 13.29 7.19 18.84 31-31/32 32-3/8 7.19 Yes 34 74
35-1/2 72-7/16 30 32 12.49 6.74 17.86 31-31/32 30-3/8 6.74 Yes 34 70
35-1/2 68-7/16 30 30 11.68 6.3 16.87 31-31/32 28-3/8 6.3 Yes 34 66
35-1/2 64-7/16 30 28 10.88 5.86 15.89 31-31/32 26-3/8 5.86 Yes 34 62
35-1/2 60-7/16 30 26 10.07 5.41 14.9 31-31/32 24-3/8 5.41 No 34 58
35-1/2 56-7/16 30 24 9.26 4.97 13.91 31-31/32 22-3/8 4.97 No 34 54
35-1/2 52-7/16 30 22 8.46 4.52 12.93 31-31/32 20-3/8 4.52 No 34 50
35-1/2 48-7/16 30 20 7.65 4.08 11.94 31-31/32 18-3/8 4.08 No 34 46
35-1/2 40-7/16 30 16 6.04 3.19 9.97 31-31/32 14-3/8 3.19 No 34 38
35-1/2 36-7/16 30 14 5.24 2.75 8.98 31-31/32 12-3/8 2.75 No 34 34
33-1/2 80-7/16 28 36 13.12 7.15 18.71 29-31/32 34-3/8 7.15 Yes 32 78
33-1/2 76-7/16 28 34 12.38 6.74 17.78 29-31/32 32-3/8 6.74 Yes 32 74
33-1/2 72-7/16 28 32 11.62 6.32 16.85 29-31/32 30-3/8 6.32 Yes 32 70
33-1/2 68-7/16 28 30 10.88 5.91 15.92 29-31/32 28-3/8 5.91 Yes 32 66
33-1/2 64-7/16 28 28 10.12 5.49 14.99 29-31/32 26-3/8 5.49 No 32 62
33-1/2 60-7/16 28 26 9.38 5.07 14.06 29-31/32 24-3/8 5.07 No 32 58
33-1/2 56-7/16 28 24 8.62 4.66 13.13 29-31/32 22-3/8 4.66 No 32 54
33-1/2 52-7/16 28 22 7.88 4.24 12.2 29-31/32 20-3/8 4.24 No 32 50
33-1/2 48-7/16 28 20 7.12 3.82 11.27 29-31/32 18-3/8 3.82 No 32 46
33-1/2 40-7/16 28 16 5.62 2.99 9.41 29-31/32 14-3/8 2.99 No 32 38
33-1/2 36-7/16 28 14 4.88 2.58 8.48 29-31/32 12-3/8 2.58 No 32 34
31-1/2 80-7/16 26 36 12.15 6.68 17.6 27-31/32 34-3/8 6.68 Yes 30 78
31-1/2 76-7/16 26 34 11.46 6.29 16.72 27-31/32 32-3/8 6.29 Yes 30 74
31-1/2 72-7/16 26 32 10.76 5.9 15.85 27-31/32 30-3/8 5.9 Yes 30 70
31-1/2 68-7/16 26 30 10.07 5.51 14.97 27-31/32 28-3/8 5.51 No 30 66
31-1/2 64-7/16 26 28 9.38 5.12 14.1 27-31/32 26-3/8 5.12 No 30 62
31-1/2 60-7/16 26 26 8.68 4.73 13.22 27-31/32 24-3/8 4.73 No 30 58
31-1/2 56-7/16 26 24 7.99 4.35 12.35 27-31/32 22-3/8 4.35 No 30 54
31-1/2 52-7/16 26 22 7.29 3.96 11.47 27-31/32 20-3/8 3.96 No 30 50
31-1/2 48-7/16 26 20 6.6 3.57 10.6 27-31/32 18-3/8 3.57 No 30 46
31-1/2 40-7/16 26 16 5.21 2.79 8.85 27-31/32 14-3/8 2.79 No 30 38
31-1/2 36-7/16 26 14 4.51 2.4 7.97 27-31/32 12-3/8 2.4 No 30 34
29-1/2 80-7/16 24 36 11.18 6.2 16.48 25-31/32 34-3/8 6.2 Yes 28 78
29-1/2 76-7/16 24 34 10.54 5.84 15.66 25-31/32 32-3/8 5.84 Yes 28 74
29-1/2 72-7/16 24 32 9.9 5.48 14.84 25-31/32 30-3/8 5.48 No 28 70
29-1/2 68-7/16 24 30 9.26 5.12 14.02 25-31/32 28-3/8 5.12 No 28 66
29-1/2 64-7/16 24 28 8.62 4.76 13.2 25-31/32 26-3/8 4.76 No 28 62
29-1/2 60-7/16 24 26 7.99 4.4 12.38 25-31/32 24-3/8 4.4 No 28 58
29-1/2 56-7/16 24 24 7.35 4.04 11.56 25-31/32 22-3/8 4.04 No 28 54
29-1/2 52-7/16 24 22 6.71 3.67 10.74 25-31/32 20-3/8 3.67 No 28 50
29-1/2 48-7/16 24 20 6.07 3.31 9.92 25-31/32 18-3/8 3.31 No 28 46
29-1/2 40-7/16 24 16 4.79 2.59 8.28 25-31/32 14-3/8 2.59 No 28 38
29-1/2 36-7/16 24 14 4.15 2.23 7.46 25-31/32 12-3/8 2.23 No 28 34
25-1/2 80-7/16 20 36 9.24 5.24 14.24 21-31/32 34-3/8 5.24 No 24 78
25-1/2 76-7/16 20 34 8.71 4.94 13.54 21-31/32 32-3/8 4.94 No 24 74
25-1/2 72-7/16 20 32 8.18 4.63 12.83 21-31/32 30-3/8 4.63 No 24 70
25-1/2 68-7/16 20 30 7.65 4.33 12.12 21-31/32 28-3/8 4.33 No 24 66
25-1/2 64-7/16 20 28 7.12 4.02 11.41 21-31/32 26-3/8 4.02 No 24 62
25-1/2 60-7/16 20 26 6.6 3.72 10.7 21-31/32 24-3/8 3.72 No 24 58
25-1/2 56-7/16 20 24 6.07 3.41 9.99 21-31/32 22-3/8 3.41 No 24 54
25-1/2 52-7/16 20 22 5.54 3.11 9.29 21-31/32 20-3/8 3.11 No 24 50
25-1/2 48-7/16 20 20 5.01 2.8 8.58 21-31/32 18-3/8 2.8 No 24 46
25-1/2 40-7/16 20 16 3.96 2.19 7.16 21-31/32 14-3/8 2.19 No 24 38
25-1/2 36-7/16 20 14 3.43 1.89 6.45 21-31/32 12-3/8 1.89 No 24 34
21-1/2 80-7/16 16 36 7.29 4.29 12.01 17-31/32 34-3/8 4.29 No 20 78
21-1/2 76-7/16 16 34 6.88 4.04 11.41 17-31/32 32-3/8 4.04 No 20 74
21-1/2 72-7/16 16 32 6.46 3.79 10.82 17-31/32 30-3/8 3.79 No 20 70
21-1/2 68-7/16 16 30 6.04 3.54 10.22 17-31/32 28-3/8 3.54 No 20 66
21-1/2 64-7/16 16 28 5.62 3.29 9.62 17-31/32 26-3/8 3.29 No 20 62
21-1/2 60-7/16 16 26 5.21 3.04 9.02 17-31/32 24-3/8 3.04 No 20 58
21-1/2 56-7/16 16 24 4.79 2.79 8.43 17-31/32 22-3/8 2.79 No 20 54
21-1/2 52-7/16 16 22 4.38 2.54 7.83 17-31/32 20-3/8 2.54 No 20 50
21-1/2 48-7/16 16 20 3.96 2.29 7.23 17-31/32 18-3/8 2.29 No 20 46
21-1/2 40-7/16 16 16 3.12 1.79 6.04 17-31/32 14-3/8 1.79 No 20 38
21-1/2 36-7/16 16 14 2.71 1.54 5.44 17-31/32 12-3/8 1.54 No 20 34
Ultra Series Sterling Double Hung
Sterling DH with Class 5 Balances High and Impact Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
21-1/2 36-7/16 16 14 2.71 1.23 5.44 17-31/32 9-7/8 1.23 No 20 34
21-1/2 40-7/16 16 16 3.12 1.48 6.04 17-31/32 11-7/8 1.48 No 20 38
21-1/2 48-7/16 16 20 3.96 1.98 7.23 17-31/32 15-7/8 1.98 No 20 46
21-1/2 52-7/16 16 22 4.38 2.23 7.83 17-31/32 17-7/8 2.23 No 20 50
21-1/2 56-7/16 16 24 4.79 2.48 8.43 17-31/32 19-7/8 2.48 No 20 54
21-1/2 60-7/16 16 26 5.21 2.73 9.02 17-31/32 21-7/8 2.73 No 20 58
21-1/2 64-7/16 16 28 5.62 2.98 9.62 17-31/32 23-7/8 2.98 No 20 62
21-1/2 68-7/16 16 30 6.04 3.23 10.22 17-31/32 25-7/8 3.23 No 20 66
21-1/2 72-7/16 16 32 6.46 3.48 10.82 17-31/32 27-7/8 3.48 No 20 70
21-1/2 76-7/16 16 34 6.88 3.73 11.41 17-31/32 29-7/8 3.73 No 20 74
21-1/2 80-7/16 16 36 7.29 3.98 12.01 17-31/32 31-7/8 3.98 No 20 78
25-1/2 36-7/16 20 14 3.43 1.51 6.45 21-31/32 9-7/8 1.51 No 24 34
25-1/2 40-7/16 20 16 3.96 1.81 7.16 21-31/32 11-7/8 1.81 No 24 38
25-1/2 48-7/16 20 20 5.01 2.42 8.58 21-31/32 15-7/8 2.42 No 24 46
25-1/2 52-7/16 20 22 5.54 2.73 9.29 21-31/32 17-7/8 2.73 No 24 50
25-1/2 56-7/16 20 24 6.07 3.03 9.99 21-31/32 19-7/8 3.03 No 24 54
25-1/2 60-7/16 20 26 6.6 3.34 10.7 21-31/32 21-7/8 3.34 No 24 58
25-1/2 64-7/16 20 28 7.12 3.64 11.41 21-31/32 23-7/8 3.64 No 24 62
25-1/2 68-7/16 20 30 7.65 3.95 12.12 21-31/32 25-7/8 3.95 No 24 66
25-1/2 72-7/16 20 32 8.18 4.25 12.83 21-31/32 27-7/8 4.25 No 24 70
25-1/2 76-7/16 20 34 8.71 4.56 13.54 21-31/32 29-7/8 4.56 No 24 74
25-1/2 80-7/16 20 36 9.24 4.86 14.24 21-31/32 31-7/8 4.86 No 24 78
29-1/2 36-7/16 24 14 4.15 1.78 7.46 25-31/32 9-7/8 1.78 No 28 34
29-1/2 40-7/16 24 16 4.79 2.14 8.28 25-31/32 11-7/8 2.14 No 28 38
29-1/2 48-7/16 24 20 6.07 2.86 9.92 25-31/32 15-7/8 2.86 No 28 46
29-1/2 52-7/16 24 22 6.71 3.22 10.74 25-31/32 17-7/8 3.22 No 28 50
29-1/2 56-7/16 24 24 7.35 3.58 11.56 25-31/32 19-7/8 3.58 No 28 54
29-1/2 60-7/16 24 26 7.99 3.94 12.38 25-31/32 21-7/8 3.94 No 28 58
29-1/2 64-7/16 24 28 8.62 4.31 13.2 25-31/32 23-7/8 4.31 No 28 62
29-1/2 68-7/16 24 30 9.26 4.67 14.02 25-31/32 25-7/8 4.67 No 28 66
29-1/2 72-7/16 24 32 9.9 5.03 14.84 25-31/32 27-7/8 5.03 No 28 70
29-1/2 76-7/16 24 34 10.54 5.39 15.66 25-31/32 29-7/8 5.39 No 28 74
29-1/2 80-7/16 24 36 11.18 5.75 16.48 25-31/32 31-7/8 5.75 Yes 28 78
31-1/2 36-7/16 26 14 4.51 1.92 7.97 27-31/32 9-7/8 1.92 No 30 34
31-1/2 40-7/16 26 16 5.21 2.31 8.85 27-31/32 11-7/8 2.31 No 30 38
31-1/2 48-7/16 26 20 6.6 3.08 10.6 27-31/32 15-7/8 3.08 No 30 46
31-1/2 52-7/16 26 22 7.29 3.47 11.47 27-31/32 17-7/8 3.47 No 30 50
31-1/2 56-7/16 26 24 7.99 3.86 12.35 27-31/32 19-7/8 3.86 No 30 54
31-1/2 60-7/16 26 26 8.68 4.25 13.22 27-31/32 21-7/8 4.25 No 30 58
31-1/2 64-7/16 26 28 9.38 4.64 14.1 27-31/32 23-7/8 4.64 No 30 62
31-1/2 68-7/16 26 30 10.07 5.03 14.97 27-31/32 25-7/8 5.03 No 30 66
31-1/2 72-7/16 26 32 10.76 5.41 15.85 27-31/32 27-7/8 5.41 No 30 70
31-1/2 76-7/16 26 34 11.46 5.8 16.72 27-31/32 29-7/8 5.8 Yes 30 74
31-1/2 80-7/16 26 36 12.15 6.19 17.6 27-31/32 31-7/8 6.19 Yes 30 78
33-1/2 36-7/16 28 14 4.88 2.06 8.48 29-31/32 9-7/8 2.06 No 32 34
33-1/2 40-7/16 28 16 5.62 2.47 9.41 29-31/32 11-7/8 2.47 No 32 38
33-1/2 48-7/16 28 20 7.12 3.3 11.27 29-31/32 15-7/8 3.3 No 32 46
33-1/2 52-7/16 28 22 7.88 3.72 12.2 29-31/32 17-7/8 3.72 No 32 50
33-1/2 56-7/16 28 24 8.62 4.14 13.13 29-31/32 19-7/8 4.14 No 32 54
33-1/2 60-7/16 28 26 9.38 4.55 14.06 29-31/32 21-7/8 4.55 No 32 58
33-1/2 64-7/16 28 28 10.12 4.97 14.99 29-31/32 23-7/8 4.97 No 32 62
33-1/2 68-7/16 28 30 10.88 5.39 15.92 29-31/32 25-7/8 5.39 No 32 66
33-1/2 72-7/16 28 32 11.62 5.8 16.85 29-31/32 27-7/8 5.8 Yes 32 70
33-1/2 76-7/16 28 34 12.38 6.22 17.78 29-31/32 29-7/8 6.22 Yes 32 74
33-1/2 80-7/16 28 36 13.12 6.63 18.71 29-31/32 31-7/8 6.63 Yes 32 78
35-1/2 36-7/16 30 14 5.24 2.19 8.98 31-31/32 9-7/8 2.19 No 34 34
35-1/2 40-7/16 30 16 6.04 2.64 9.97 31-31/32 11-7/8 2.64 No 34 38
35-1/2 48-7/16 30 20 7.65 3.52 11.94 31-31/32 15-7/8 3.52 No 34 46
35-1/2 52-7/16 30 22 8.46 3.97 12.93 31-31/32 17-7/8 3.97 No 34 50
35-1/2 56-7/16 30 24 9.26 4.41 13.91 31-31/32 19-7/8 4.41 No 34 54
35-1/2 60-7/16 30 26 10.07 4.86 14.9 31-31/32 21-7/8 4.86 No 34 58
35-1/2 64-7/16 30 28 10.88 5.3 15.89 31-31/32 23-7/8 5.3 No 34 62
35-1/2 68-7/16 30 30 11.68 5.74 16.87 31-31/32 25-7/8 5.74 Yes 34 66
35-1/2 72-7/16 30 32 12.49 6.19 17.86 31-31/32 27-7/8 6.19 Yes 34 70
35-1/2 76-7/16 30 34 13.29 6.63 18.84 31-31/32 29-7/8 6.63 Yes 34 74
35-1/2 80-7/16 30 36 14.1 7.08 19.83 31-31/32 31-7/8 7.08 Yes 34 78
37-1/2 36-7/16 32 14 5.6 2.33 9.49 33-31/32 9-7/8 2.33 No 36 34
37-1/2 40-7/16 32 16 6.46 2.8 10.53 33-31/32 11-7/8 2.8 No 36 38
37-1/2 48-7/16 32 20 8.18 3.74 12.61 33-31/32 15-7/8 3.74 No 36 46
45-1/2 80-7/16 40 36 18.96 9.29 25.42 41-31/32 31-7/8 9.29 Yes 44 78
45-1/2 76-7/16 40 34 17.88 8.71 24.15 41-31/32 29-7/8 8.71 Yes 44 74
45-1/2 60-7/16 40 26 13.54 6.38 19.1 41-31/32 21-7/8 6.38 No 44 58
45-1/2 64-7/16 40 28 14.62 6.96 20.36 41-31/32 23-7/8 6.96 No 44 62
45-1/2 68-7/16 40 30 15.71 7.54 21.62 41-31/32 25-7/8 7.54 Yes 44 66
45-1/2 72-7/16 40 32 16.79 8.12 22.89 41-31/32 27-7/8 8.12 Yes 44 70
41-1/2 72-7/16 36 32 15.07 7.35 20.88 37-31/32 27-7/8 7.35 Yes 40 70
41-1/2 76-7/16 36 34 16.04 7.88 22.03 37-31/32 29-7/8 7.88 Yes 40 74
41-1/2 80-7/16 36 36 17.01 8.4 23.18 37-31/32 31-7/8 8.4 Yes 40 78
45-1/2 36-7/16 40 14 7.04 2.88 11.51 41-31/32 9-7/8 2.88 No 44 34
45-1/2 40-7/16 40 16 8.12 3.46 12.78 41-31/32 11-7/8 3.46 No 44 38
45-1/2 48-7/16 40 20 10.29 4.63 15.3 41-31/32 15-7/8 4.63 No 44 46
45-1/2 52-7/16 40 22 11.38 5.21 16.57 41-31/32 17-7/8 5.21 No 44 50
45-1/2 56-7/16 40 24 12.46 5.79 17.83 41-31/32 19-7/8 5.79 No 44 54
37-1/2 52-7/16 32 22 9.04 4.22 13.66 33-31/32 17-7/8 4.22 No 36 50
37-1/2 56-7/16 32 24 9.9 4.69 14.7 33-31/32 19-7/8 4.69 No 36 54
37-1/2 60-7/16 32 26 10.76 5.16 15.74 33-31/32 21-7/8 5.16 No 36 58
37-1/2 64-7/16 32 28 11.62 5.63 16.78 33-31/32 23-7/8 5.63 No 36 62
37-1/2 68-7/16 32 30 12.49 6.1 17.82 33-31/32 25-7/8 6.1 Yes 36 66
37-1/2 72-7/16 32 32 13.35 6.58 18.86 33-31/32 27-7/8 6.58 Yes 36 70
37-1/2 76-7/16 32 34 14.21 7.05 19.91 33-31/32 29-7/8 7.05 Yes 36 74
37-1/2 80-7/16 32 36 15.07 7.52 20.95 33-31/32 31-7/8 7.52 Yes 36 78
41-1/2 36-7/16 36 14 6.32 2.6 10.5 37-31/32 9-7/8 2.6 No 40 34
41-1/2 40-7/16 36 16 7.29 3.13 11.65 37-31/32 11-7/8 3.13 No 40 38
41-1/2 48-7/16 36 20 9.24 4.19 13.96 37-31/32 15-7/8 4.19 No 40 46
41-1/2 52-7/16 36 22 10.21 4.71 15.11 37-31/32 17-7/8 4.71 No 40 50
41-1/2 56-7/16 36 24 11.18 5.24 16.26 37-31/32 19-7/8 5.24 No 40 54
41-1/2 60-7/16 36 26 12.15 5.77 17.42 37-31/32 21-7/8 5.77 No 40 58
41-1/2 64-7/16 36 28 13.12 6.3 18.57 37-31/32 23-7/8 6.3 No 40 62
41-1/2 68-7/16 36 30 14.1 6.82 19.72 37-31/32 25-7/8 6.82 Yes 40 66
Ultra Series Sterling Double Hung Bay
Sterling DH with Class 5 Balances High and Impact Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
41-1/2 72-7/16 36 32 15.07 7.35 20.88 37-31/32 27-7/8 7.35 Yes 40 70
41-1/2 68-7/16 36 30 14.1 6.82 19.72 37-31/32 25-7/8 6.82 Yes 40 66
41-1/2 64-7/16 36 28 13.12 6.3 18.57 37-31/32 23-7/8 6.3 No 40 62
41-1/2 60-7/16 36 26 12.15 5.77 17.42 37-31/32 21-7/8 5.77 No 40 58
41-1/2 56-7/16 36 24 11.18 5.24 16.26 37-31/32 19-7/8 5.24 No 40 54
41-1/2 52-7/16 36 22 10.21 4.71 15.11 37-31/32 17-7/8 4.71 No 40 50
41-1/2 48-7/16 36 20 9.24 4.19 13.96 37-31/32 15-7/8 4.19 No 40 46
41-1/2 40-7/16 36 16 7.29 3.13 11.65 37-31/32 11-7/8 3.13 No 40 38
41-1/2 36-7/16 36 14 6.32 2.6 10.5 37-31/32 9-7/8 2.6 No 40 34
37-1/2 80-7/16 32 36 15.07 7.52 20.95 33-31/32 31-7/8 7.52 Yes 36 78
37-1/2 76-7/16 32 34 14.21 7.05 19.91 33-31/32 29-7/8 7.05 Yes 36 74
37-1/2 72-7/16 32 32 13.35 6.58 18.86 33-31/32 27-7/8 6.58 Yes 36 70
37-1/2 68-7/16 32 30 12.49 6.1 17.82 33-31/32 25-7/8 6.1 Yes 36 66
37-1/2 64-7/16 32 28 11.62 5.63 16.78 33-31/32 23-7/8 5.63 No 36 62
37-1/2 60-7/16 32 26 10.76 5.16 15.74 33-31/32 21-7/8 5.16 No 36 58
37-1/2 56-7/16 32 24 9.9 4.69 14.7 33-31/32 19-7/8 4.69 No 36 54
45-1/2 60-7/16 40 26 13.54 6.38 19.1 41-31/32 21-7/8 6.38 No 44 58
45-1/2 56-7/16 40 24 12.46 5.79 17.83 41-31/32 19-7/8 5.79 No 44 54
45-1/2 52-7/16 40 22 11.38 5.21 16.57 41-31/32 17-7/8 5.21 No 44 50
45-1/2 48-7/16 40 20 10.29 4.63 15.3 41-31/32 15-7/8 4.63 No 44 46
45-1/2 40-7/16 40 16 8.12 3.46 12.78 41-31/32 11-7/8 3.46 No 44 38
45-1/2 36-7/16 40 14 7.04 2.88 11.51 41-31/32 9-7/8 2.88 No 44 34
41-1/2 80-7/16 36 36 17.01 8.4 23.18 37-31/32 31-7/8 8.4 Yes 40 78
41-1/2 76-7/16 36 34 16.04 7.88 22.03 37-31/32 29-7/8 7.88 Yes 40 74
45-1/2 76-7/16 40 34 17.88 8.71 24.15 41-31/32 29-7/8 8.71 Yes 44 74
45-1/2 72-7/16 40 32 16.79 8.12 22.89 41-31/32 27-7/8 8.12 Yes 44 70
45-1/2 68-7/16 40 30 15.71 7.54 21.62 41-31/32 25-7/8 7.54 Yes 44 66
45-1/2 64-7/16 40 28 14.62 6.96 20.36 41-31/32 23-7/8 6.96 No 44 62
45-1/2 80-7/16 40 36 18.96 9.29 25.42 41-31/32 31-7/8 9.29 Yes 44 78
37-1/2 52-7/16 32 22 9.04 4.22 13.66 33-31/32 17-7/8 4.22 No 36 50
37-1/2 48-7/16 32 20 8.18 3.74 12.61 33-31/32 15-7/8 3.74 No 36 46
37-1/2 40-7/16 32 16 6.46 2.8 10.53 33-31/32 11-7/8 2.8 No 36 38
37-1/2 36-7/16 32 14 5.6 2.33 9.49 33-31/32 9-7/8 2.33 No 36 34
35-1/2 80-7/16 30 36 14.1 7.08 19.83 31-31/32 31-7/8 7.08 Yes 34 78
35-1/2 76-7/16 30 34 13.29 6.63 18.84 31-31/32 29-7/8 6.63 Yes 34 74
35-1/2 72-7/16 30 32 12.49 6.19 17.86 31-31/32 27-7/8 6.19 Yes 34 70
35-1/2 68-7/16 30 30 11.68 5.74 16.87 31-31/32 25-7/8 5.74 Yes 34 66
35-1/2 64-7/16 30 28 10.88 5.3 15.89 31-31/32 23-7/8 5.3 No 34 62
35-1/2 60-7/16 30 26 10.07 4.86 14.9 31-31/32 21-7/8 4.86 No 34 58
35-1/2 56-7/16 30 24 9.26 4.41 13.91 31-31/32 19-7/8 4.41 No 34 54
35-1/2 52-7/16 30 22 8.46 3.97 12.93 31-31/32 17-7/8 3.97 No 34 50
35-1/2 48-7/16 30 20 7.65 3.52 11.94 31-31/32 15-7/8 3.52 No 34 46
35-1/2 40-7/16 30 16 6.04 2.64 9.97 31-31/32 11-7/8 2.64 No 34 38
35-1/2 36-7/16 30 14 5.24 2.19 8.98 31-31/32 9-7/8 2.19 No 34 34
33-1/2 80-7/16 28 36 13.12 6.63 18.71 29-31/32 31-7/8 6.63 Yes 32 78
33-1/2 76-7/16 28 34 12.38 6.22 17.78 29-31/32 29-7/8 6.22 Yes 32 74
33-1/2 72-7/16 28 32 11.62 5.8 16.85 29-31/32 27-7/8 5.8 Yes 32 70
33-1/2 68-7/16 28 30 10.88 5.39 15.92 29-31/32 25-7/8 5.39 No 32 66
33-1/2 64-7/16 28 28 10.12 4.97 14.99 29-31/32 23-7/8 4.97 No 32 62
33-1/2 60-7/16 28 26 9.38 4.55 14.06 29-31/32 21-7/8 4.55 No 32 58
33-1/2 56-7/16 28 24 8.62 4.14 13.13 29-31/32 19-7/8 4.14 No 32 54
33-1/2 52-7/16 28 22 7.88 3.72 12.2 29-31/32 17-7/8 3.72 No 32 50
33-1/2 48-7/16 28 20 7.12 3.3 11.27 29-31/32 15-7/8 3.3 No 32 46
33-1/2 40-7/16 28 16 5.62 2.47 9.41 29-31/32 11-7/8 2.47 No 32 38
33-1/2 36-7/16 28 14 4.88 2.06 8.48 29-31/32 9-7/8 2.06 No 32 34
31-1/2 80-7/16 26 36 12.15 6.19 17.6 27-31/32 31-7/8 6.19 Yes 30 78
31-1/2 76-7/16 26 34 11.46 5.8 16.72 27-31/32 29-7/8 5.8 Yes 30 74
31-1/2 72-7/16 26 32 10.76 5.41 15.85 27-31/32 27-7/8 5.41 No 30 70
31-1/2 68-7/16 26 30 10.07 5.03 14.97 27-31/32 25-7/8 5.03 No 30 66
31-1/2 64-7/16 26 28 9.38 4.64 14.1 27-31/32 23-7/8 4.64 No 30 62
31-1/2 60-7/16 26 26 8.68 4.25 13.22 27-31/32 21-7/8 4.25 No 30 58
31-1/2 56-7/16 26 24 7.99 3.86 12.35 27-31/32 19-7/8 3.86 No 30 54
31-1/2 52-7/16 26 22 7.29 3.47 11.47 27-31/32 17-7/8 3.47 No 30 50
31-1/2 48-7/16 26 20 6.6 3.08 10.6 27-31/32 15-7/8 3.08 No 30 46
31-1/2 40-7/16 26 16 5.21 2.31 8.85 27-31/32 11-7/8 2.31 No 30 38
31-1/2 36-7/16 26 14 4.51 1.92 7.97 27-31/32 9-7/8 1.92 No 30 34
29-1/2 80-7/16 24 36 11.18 5.75 16.48 25-31/32 31-7/8 5.75 Yes 28 78
29-1/2 76-7/16 24 34 10.54 5.39 15.66 25-31/32 29-7/8 5.39 No 28 74
29-1/2 72-7/16 24 32 9.9 5.03 14.84 25-31/32 27-7/8 5.03 No 28 70
29-1/2 68-7/16 24 30 9.26 4.67 14.02 25-31/32 25-7/8 4.67 No 28 66
29-1/2 64-7/16 24 28 8.62 4.31 13.2 25-31/32 23-7/8 4.31 No 28 62
29-1/2 60-7/16 24 26 7.99 3.94 12.38 25-31/32 21-7/8 3.94 No 28 58
29-1/2 56-7/16 24 24 7.35 3.58 11.56 25-31/32 19-7/8 3.58 No 28 54
29-1/2 52-7/16 24 22 6.71 3.22 10.74 25-31/32 17-7/8 3.22 No 28 50
29-1/2 48-7/16 24 20 6.07 2.86 9.92 25-31/32 15-7/8 2.86 No 28 46
29-1/2 40-7/16 24 16 4.79 2.14 8.28 25-31/32 11-7/8 2.14 No 28 38
29-1/2 36-7/16 24 14 4.15 1.78 7.46 25-31/32 9-7/8 1.78 No 28 34
25-1/2 80-7/16 20 36 9.24 4.86 14.24 21-31/32 31-7/8 4.86 No 24 78
25-1/2 76-7/16 20 34 8.71 4.56 13.54 21-31/32 29-7/8 4.56 No 24 74
25-1/2 72-7/16 20 32 8.18 4.25 12.83 21-31/32 27-7/8 4.25 No 24 70
25-1/2 68-7/16 20 30 7.65 3.95 12.12 21-31/32 25-7/8 3.95 No 24 66
25-1/2 64-7/16 20 28 7.12 3.64 11.41 21-31/32 23-7/8 3.64 No 24 62
25-1/2 60-7/16 20 26 6.6 3.34 10.7 21-31/32 21-7/8 3.34 No 24 58
25-1/2 56-7/16 20 24 6.07 3.03 9.99 21-31/32 19-7/8 3.03 No 24 54
25-1/2 52-7/16 20 22 5.54 2.73 9.29 21-31/32 17-7/8 2.73 No 24 50
25-1/2 48-7/16 20 20 5.01 2.42 8.58 21-31/32 15-7/8 2.42 No 24 46
25-1/2 40-7/16 20 16 3.96 1.81 7.16 21-31/32 11-7/8 1.81 No 24 38
25-1/2 36-7/16 20 14 3.43 1.51 6.45 21-31/32 9-7/8 1.51 No 24 34
21-1/2 80-7/16 16 36 7.29 3.98 12.01 17-31/32 31-7/8 3.98 No 20 78
21-1/2 76-7/16 16 34 6.88 3.73 11.41 17-31/32 29-7/8 3.73 No 20 74
21-1/2 72-7/16 16 32 6.46 3.48 10.82 17-31/32 27-7/8 3.48 No 20 70
21-1/2 68-7/16 16 30 6.04 3.23 10.22 17-31/32 25-7/8 3.23 No 20 66
21-1/2 64-7/16 16 28 5.62 2.98 9.62 17-31/32 23-7/8 2.98 No 20 62
21-1/2 60-7/16 16 26 5.21 2.73 9.02 17-31/32 21-7/8 2.73 No 20 58
21-1/2 56-7/16 16 24 4.79 2.48 8.43 17-31/32 19-7/8 2.48 No 20 54
21-1/2 52-7/16 16 22 4.38 2.23 7.83 17-31/32 17-7/8 2.23 No 20 50
21-1/2 48-7/16 16 20 3.96 1.98 7.23 17-31/32 15-7/8 1.98 No 20 46
21-1/2 40-7/16 16 16 3.12 1.48 6.04 17-31/32 11-7/8 1.48 No 20 38
21-1/2 36-7/16 16 14 2.71 1.23 5.44 17-31/32 9-7/8 1.23 No 20 34
Ultra Series Sterling Double Hung
Sterling DH with Class 5 Balances Standard Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
45-1/2 80-7/16 40 36 18.96 9.44 25.42 41-31/32 32-3/8 9.44 Yes 44 78
45-1/2 76-7/16 40 34 17.88 8.85 24.15 41-31/32 30-3/8 8.85 Yes 44 74
45-1/2 60-7/16 40 26 13.54 6.52 19.1 41-31/32 22-3/8 6.52 No 44 58
45-1/2 64-7/16 40 28 14.62 7.1 20.36 41-31/32 24-3/8 7.1 Yes 44 62
45-1/2 68-7/16 40 30 15.71 7.69 21.62 41-31/32 26-3/8 7.69 Yes 44 66
45-1/2 72-7/16 40 32 16.79 8.27 22.89 41-31/32 28-3/8 8.27 Yes 44 70
29-1/2 68-7/16 24 30 9.26 4.76 14.02 25-31/32 26-3/8 4.76 No 28 66
29-1/2 72-7/16 24 32 9.9 5.12 14.84 25-31/32 28-3/8 5.12 No 28 70
29-1/2 76-7/16 24 34 10.54 5.48 15.66 25-31/32 30-3/8 5.48 No 28 74
29-1/2 80-7/16 24 36 11.18 5.84 16.48 25-31/32 32-3/8 5.84 Yes 28 78
31-1/2 36-7/16 26 14 4.51 2.02 7.97 27-31/32 10-3/8 2.02 No 30 34
31-1/2 40-7/16 26 16 5.21 2.4 8.85 27-31/32 12-3/8 2.4 No 30 38
31-1/2 48-7/16 26 20 6.6 3.18 10.6 27-31/32 16-3/8 3.18 No 30 46
31-1/2 52-7/16 26 22 7.29 3.57 11.47 27-31/32 18-3/8 3.57 No 30 50
31-1/2 56-7/16 26 24 7.99 3.96 12.35 27-31/32 20-3/8 3.96 No 30 54
31-1/2 60-7/16 26 26 8.68 4.35 13.22 27-31/32 22-3/8 4.35 No 30 58
31-1/2 64-7/16 26 28 9.38 4.73 14.1 27-31/32 24-3/8 4.73 No 30 62
31-1/2 68-7/16 26 30 10.07 5.12 14.97 27-31/32 26-3/8 5.12 No 30 66
31-1/2 72-7/16 26 32 10.76 5.51 15.85 27-31/32 28-3/8 5.51 No 30 70
31-1/2 76-7/16 26 34 11.46 5.9 16.72 27-31/32 30-3/8 5.9 Yes 30 74
31-1/2 80-7/16 26 36 12.15 6.29 17.6 27-31/32 32-3/8 6.29 Yes 30 78
33-1/2 36-7/16 28 14 4.88 2.16 8.48 29-31/32 10-3/8 2.16 No 32 34
33-1/2 40-7/16 28 16 5.62 2.58 9.41 29-31/32 12-3/8 2.58 No 32 38
33-1/2 48-7/16 28 20 7.12 3.41 11.27 29-31/32 16-3/8 3.41 No 32 46
33-1/2 52-7/16 28 22 7.88 3.82 12.2 29-31/32 18-3/8 3.82 No 32 50
33-1/2 56-7/16 28 24 8.62 4.24 13.13 29-31/32 20-3/8 4.24 No 32 54
33-1/2 60-7/16 28 26 9.38 4.66 14.06 29-31/32 22-3/8 4.66 No 32 58
33-1/2 64-7/16 28 28 10.12 5.07 14.99 29-31/32 24-3/8 5.07 No 32 62
33-1/2 68-7/16 28 30 10.88 5.49 15.92 29-31/32 26-3/8 5.49 No 32 66
33-1/2 72-7/16 28 32 11.62 5.91 16.85 29-31/32 28-3/8 5.91 Yes 32 70
33-1/2 76-7/16 28 34 12.38 6.32 17.78 29-31/32 30-3/8 6.32 Yes 32 74
33-1/2 80-7/16 28 36 13.12 6.74 18.71 29-31/32 32-3/8 6.74 Yes 32 78
35-1/2 36-7/16 30 14 5.24 2.3 8.98 31-31/32 10-3/8 2.3 No 34 34
35-1/2 40-7/16 30 16 6.04 2.75 9.97 31-31/32 12-3/8 2.75 No 34 38
35-1/2 48-7/16 30 20 7.65 3.64 11.94 31-31/32 16-3/8 3.64 No 34 46
35-1/2 52-7/16 30 22 8.46 4.08 12.93 31-31/32 18-3/8 4.08 No 34 50
35-1/2 56-7/16 30 24 9.26 4.52 13.91 31-31/32 20-3/8 4.52 No 34 54
35-1/2 60-7/16 30 26 10.07 4.97 14.9 31-31/32 22-3/8 4.97 No 34 58
35-1/2 64-7/16 30 28 10.88 5.41 15.89 31-31/32 24-3/8 5.41 No 34 62
35-1/2 68-7/16 30 30 11.68 5.86 16.87 31-31/32 26-3/8 5.86 Yes 34 66
35-1/2 72-7/16 30 32 12.49 6.3 17.86 31-31/32 28-3/8 6.3 Yes 34 70
35-1/2 76-7/16 30 34 13.29 6.74 18.84 31-31/32 30-3/8 6.74 Yes 34 74
35-1/2 80-7/16 30 36 14.1 7.19 19.83 31-31/32 32-3/8 7.19 Yes 34 78
37-1/2 36-7/16 32 14 5.6 2.45 9.49 33-31/32 10-3/8 2.45 No 36 34
37-1/2 40-7/16 32 16 6.46 2.92 10.53 33-31/32 12-3/8 2.92 No 36 38
37-1/2 48-7/16 32 20 8.18 3.86 12.61 33-31/32 16-3/8 3.86 No 36 46
37-1/2 52-7/16 32 22 9.04 4.33 13.66 33-31/32 18-3/8 4.33 No 36 50
37-1/2 56-7/16 32 24 9.9 4.81 14.7 33-31/32 20-3/8 4.81 No 36 54
37-1/2 60-7/16 32 26 10.76 5.28 15.74 33-31/32 22-3/8 5.28 No 36 58
37-1/2 64-7/16 32 28 11.62 5.75 16.78 33-31/32 24-3/8 5.75 Yes 36 62
37-1/2 68-7/16 32 30 12.49 6.22 17.82 33-31/32 26-3/8 6.22 Yes 36 66
37-1/2 72-7/16 32 32 13.35 6.69 18.86 33-31/32 28-3/8 6.69 Yes 36 70
37-1/2 76-7/16 32 34 14.21 7.17 19.91 33-31/32 30-3/8 7.17 Yes 36 74
37-1/2 80-7/16 32 36 15.07 7.64 20.95 33-31/32 32-3/8 7.64 Yes 36 78
41-1/2 36-7/16 36 14 6.32 2.74 10.5 37-31/32 10-3/8 2.74 No 40 34
41-1/2 40-7/16 36 16 7.29 3.26 11.65 37-31/32 12-3/8 3.26 No 40 38
41-1/2 48-7/16 36 20 9.24 4.32 13.96 37-31/32 16-3/8 4.32 No 40 46
41-1/2 52-7/16 36 22 10.21 4.84 15.11 37-31/32 18-3/8 4.84 No 40 50
41-1/2 56-7/16 36 24 11.18 5.37 16.26 37-31/32 20-3/8 5.37 No 40 54
41-1/2 60-7/16 36 26 12.15 5.9 17.42 37-31/32 22-3/8 5.9 No 40 58
41-1/2 64-7/16 36 28 13.12 6.43 18.57 37-31/32 24-3/8 6.43 Yes 40 62
41-1/2 68-7/16 36 30 14.1 6.95 19.72 37-31/32 26-3/8 6.95 Yes 40 66
41-1/2 72-7/16 36 32 15.07 7.48 20.88 37-31/32 28-3/8 7.48 Yes 40 70
41-1/2 76-7/16 36 34 16.04 8.01 22.03 37-31/32 30-3/8 8.01 Yes 40 74
41-1/2 80-7/16 36 36 17.01 8.54 23.18 37-31/32 32-3/8 8.54 Yes 40 78
45-1/2 36-7/16 40 14 7.04 3.02 11.51 41-31/32 10-3/8 3.02 No 44 34
45-1/2 40-7/16 40 16 8.12 3.61 12.78 41-31/32 12-3/8 3.61 No 44 38
45-1/2 48-7/16 40 20 10.29 4.77 15.3 41-31/32 16-3/8 4.77 No 44 46
45-1/2 52-7/16 40 22 11.38 5.36 16.57 41-31/32 18-3/8 5.36 No 44 50
45-1/2 56-7/16 40 24 12.46 5.94 17.83 41-31/32 20-3/8 5.94 No 44 54
21-1/2 36-7/16 16 14 2.71 1.29 5.44 17-31/32 10-3/8 1.29 No 20 34
21-1/2 40-7/16 16 16 3.12 1.54 6.04 17-31/32 12-3/8 1.54 No 20 38
21-1/2 48-7/16 16 20 3.96 2.04 7.23 17-31/32 16-3/8 2.04 No 20 46
21-1/2 52-7/16 16 22 4.38 2.29 7.83 17-31/32 18-3/8 2.29 No 20 50
21-1/2 56-7/16 16 24 4.79 2.54 8.43 17-31/32 20-3/8 2.54 No 20 54
21-1/2 60-7/16 16 26 5.21 2.79 9.02 17-31/32 22-3/8 2.79 No 20 58
21-1/2 64-7/16 16 28 5.62 3.04 9.62 17-31/32 24-3/8 3.04 No 20 62
21-1/2 68-7/16 16 30 6.04 3.29 10.22 17-31/32 26-3/8 3.29 No 20 66
21-1/2 72-7/16 16 32 6.46 3.54 10.82 17-31/32 28-3/8 3.54 No 20 70
21-1/2 76-7/16 16 34 6.88 3.79 11.41 17-31/32 30-3/8 3.79 No 20 74
21-1/2 80-7/16 16 36 7.29 4.04 12.01 17-31/32 32-3/8 4.04 No 20 78
25-1/2 36-7/16 20 14 3.43 1.58 6.45 21-31/32 10-3/8 1.58 No 24 34
25-1/2 40-7/16 20 16 3.96 1.89 7.16 21-31/32 12-3/8 1.89 No 24 38
25-1/2 48-7/16 20 20 5.01 2.5 8.58 21-31/32 16-3/8 2.5 No 24 46
25-1/2 52-7/16 20 22 5.54 2.8 9.29 21-31/32 18-3/8 2.8 No 24 50
25-1/2 56-7/16 20 24 6.07 3.11 9.99 21-31/32 20-3/8 3.11 No 24 54
25-1/2 60-7/16 20 26 6.6 3.41 10.7 21-31/32 22-3/8 3.41 No 24 58
25-1/2 64-7/16 20 28 7.12 3.72 11.41 21-31/32 24-3/8 3.72 No 24 62
25-1/2 68-7/16 20 30 7.65 4.02 12.12 21-31/32 26-3/8 4.02 No 24 66
25-1/2 72-7/16 20 32 8.18 4.33 12.83 21-31/32 28-3/8 4.33 No 24 70
25-1/2 76-7/16 20 34 8.71 4.63 13.54 21-31/32 30-3/8 4.63 No 24 74
25-1/2 80-7/16 20 36 9.24 4.94 14.24 21-31/32 32-3/8 4.94 No 24 78
29-1/2 36-7/16 24 14 4.15 1.87 7.46 25-31/32 10-3/8 1.87 No 28 34
29-1/2 40-7/16 24 16 4.79 2.23 8.28 25-31/32 12-3/8 2.23 No 28 38
29-1/2 48-7/16 24 20 6.07 2.95 9.92 25-31/32 16-3/8 2.95 No 28 46
29-1/2 52-7/16 24 22 6.71 3.31 10.74 25-31/32 18-3/8 3.31 No 28 50
29-1/2 56-7/16 24 24 7.35 3.67 11.56 25-31/32 20-3/8 3.67 No 28 54
29-1/2 60-7/16 24 26 7.99 4.04 12.38 25-31/32 22-3/8 4.04 No 28 58
29-1/2 64-7/16 24 28 8.62 4.4 13.2 25-31/32 24-3/8 4.4 No 28 62
Ultra Series Sterling Double Hung Bay
Sterling DH with Class 5 Balances Standard Performance
Frame Size Glass Size Clear Opening Sash Size Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Daylight Area (ft²) Vent Area (ft²) Frame Area (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Width (in.) Height (in.)
29-1/2 68-7/16 24 30 9.26 4.76 14.02 25-31/32 26-3/8 4.76 No 28 66
29-1/2 64-7/16 24 28 8.62 4.4 13.2 25-31/32 24-3/8 4.4 No 28 62
29-1/2 60-7/16 24 26 7.99 4.04 12.38 25-31/32 22-3/8 4.04 No 28 58
29-1/2 56-7/16 24 24 7.35 3.67 11.56 25-31/32 20-3/8 3.67 No 28 54
29-1/2 52-7/16 24 22 6.71 3.31 10.74 25-31/32 18-3/8 3.31 No 28 50
29-1/2 48-7/16 24 20 6.07 2.95 9.92 25-31/32 16-3/8 2.95 No 28 46
29-1/2 40-7/16 24 16 4.79 2.23 8.28 25-31/32 12-3/8 2.23 No 28 38
29-1/2 36-7/16 24 14 4.15 1.87 7.46 25-31/32 10-3/8 1.87 No 28 34
25-1/2 80-7/16 20 36 9.24 4.94 14.24 21-31/32 32-3/8 4.94 No 24 78
25-1/2 76-7/16 20 34 8.71 4.63 13.54 21-31/32 30-3/8 4.63 No 24 74
25-1/2 72-7/16 20 32 8.18 4.33 12.83 21-31/32 28-3/8 4.33 No 24 70
25-1/2 68-7/16 20 30 7.65 4.02 12.12 21-31/32 26-3/8 4.02 No 24 66
25-1/2 64-7/16 20 28 7.12 3.72 11.41 21-31/32 24-3/8 3.72 No 24 62
25-1/2 60-7/16 20 26 6.6 3.41 10.7 21-31/32 22-3/8 3.41 No 24 58
25-1/2 56-7/16 20 24 6.07 3.11 9.99 21-31/32 20-3/8 3.11 No 24 54
25-1/2 52-7/16 20 22 5.54 2.8 9.29 21-31/32 18-3/8 2.8 No 24 50
25-1/2 48-7/16 20 20 5.01 2.5 8.58 21-31/32 16-3/8 2.5 No 24 46
25-1/2 40-7/16 20 16 3.96 1.89 7.16 21-31/32 12-3/8 1.89 No 24 38
25-1/2 36-7/16 20 14 3.43 1.58 6.45 21-31/32 10-3/8 1.58 No 24 34
21-1/2 80-7/16 16 36 7.29 4.04 12.01 17-31/32 32-3/8 4.04 No 20 78
21-1/2 76-7/16 16 34 6.88 3.79 11.41 17-31/32 30-3/8 3.79 No 20 74
21-1/2 72-7/16 16 32 6.46 3.54 10.82 17-31/32 28-3/8 3.54 No 20 70
21-1/2 68-7/16 16 30 6.04 3.29 10.22 17-31/32 26-3/8 3.29 No 20 66
21-1/2 64-7/16 16 28 5.62 3.04 9.62 17-31/32 24-3/8 3.04 No 20 62
21-1/2 60-7/16 16 26 5.21 2.79 9.02 17-31/32 22-3/8 2.79 No 20 58
21-1/2 56-7/16 16 24 4.79 2.54 8.43 17-31/32 20-3/8 2.54 No 20 54
21-1/2 52-7/16 16 22 4.38 2.29 7.83 17-31/32 18-3/8 2.29 No 20 50
21-1/2 48-7/16 16 20 3.96 2.04 7.23 17-31/32 16-3/8 2.04 No 20 46
21-1/2 40-7/16 16 16 3.12 1.54 6.04 17-31/32 12-3/8 1.54 No 20 38
21-1/2 36-7/16 16 14 2.71 1.29 5.44 17-31/32 10-3/8 1.29 No 20 34
45-1/2 60-7/16 40 26 13.54 6.52 19.1 41-31/32 22-3/8 6.52 No 44 58
45-1/2 56-7/16 40 24 12.46 5.94 17.83 41-31/32 20-3/8 5.94 No 44 54
45-1/2 52-7/16 40 22 11.38 5.36 16.57 41-31/32 18-3/8 5.36 No 44 50
45-1/2 48-7/16 40 20 10.29 4.77 15.3 41-31/32 16-3/8 4.77 No 44 46
45-1/2 40-7/16 40 16 8.12 3.61 12.78 41-31/32 12-3/8 3.61 No 44 38
45-1/2 36-7/16 40 14 7.04 3.02 11.51 41-31/32 10-3/8 3.02 No 44 34
41-1/2 80-7/16 36 36 17.01 8.54 23.18 37-31/32 32-3/8 8.54 Yes 40 78
41-1/2 76-7/16 36 34 16.04 8.01 22.03 37-31/32 30-3/8 8.01 Yes 40 74
41-1/2 72-7/16 36 32 15.07 7.48 20.88 37-31/32 28-3/8 7.48 Yes 40 70
41-1/2 68-7/16 36 30 14.1 6.95 19.72 37-31/32 26-3/8 6.95 Yes 40 66
41-1/2 64-7/16 36 28 13.12 6.43 18.57 37-31/32 24-3/8 6.43 Yes 40 62
41-1/2 60-7/16 36 26 12.15 5.9 17.42 37-31/32 22-3/8 5.9 No 40 58
41-1/2 56-7/16 36 24 11.18 5.37 16.26 37-31/32 20-3/8 5.37 No 40 54
41-1/2 52-7/16 36 22 10.21 4.84 15.11 37-31/32 18-3/8 4.84 No 40 50
41-1/2 48-7/16 36 20 9.24 4.32 13.96 37-31/32 16-3/8 4.32 No 40 46
41-1/2 40-7/16 36 16 7.29 3.26 11.65 37-31/32 12-3/8 3.26 No 40 38
41-1/2 36-7/16 36 14 6.32 2.74 10.5 37-31/32 10-3/8 2.74 No 40 34
37-1/2 80-7/16 32 36 15.07 7.64 20.95 33-31/32 32-3/8 7.64 Yes 36 78
37-1/2 76-7/16 32 34 14.21 7.17 19.91 33-31/32 30-3/8 7.17 Yes 36 74
37-1/2 72-7/16 32 32 13.35 6.69 18.86 33-31/32 28-3/8 6.69 Yes 36 70
37-1/2 68-7/16 32 30 12.49 6.22 17.82 33-31/32 26-3/8 6.22 Yes 36 66
37-1/2 64-7/16 32 28 11.62 5.75 16.78 33-31/32 24-3/8 5.75 Yes 36 62
37-1/2 60-7/16 32 26 10.76 5.28 15.74 33-31/32 22-3/8 5.28 No 36 58
37-1/2 56-7/16 32 24 9.9 4.81 14.7 33-31/32 20-3/8 4.81 No 36 54
37-1/2 52-7/16 32 22 9.04 4.33 13.66 33-31/32 18-3/8 4.33 No 36 50
37-1/2 48-7/16 32 20 8.18 3.86 12.61 33-31/32 16-3/8 3.86 No 36 46
37-1/2 40-7/16 32 16 6.46 2.92 10.53 33-31/32 12-3/8 2.92 No 36 38
37-1/2 36-7/16 32 14 5.6 2.45 9.49 33-31/32 10-3/8 2.45 No 36 34
35-1/2 80-7/16 30 36 14.1 7.19 19.83 31-31/32 32-3/8 7.19 Yes 34 78
35-1/2 76-7/16 30 34 13.29 6.74 18.84 31-31/32 30-3/8 6.74 Yes 34 74
35-1/2 72-7/16 30 32 12.49 6.3 17.86 31-31/32 28-3/8 6.3 Yes 34 70
35-1/2 68-7/16 30 30 11.68 5.86 16.87 31-31/32 26-3/8 5.86 Yes 34 66
35-1/2 64-7/16 30 28 10.88 5.41 15.89 31-31/32 24-3/8 5.41 No 34 62
35-1/2 60-7/16 30 26 10.07 4.97 14.9 31-31/32 22-3/8 4.97 No 34 58
35-1/2 56-7/16 30 24 9.26 4.52 13.91 31-31/32 20-3/8 4.52 No 34 54
35-1/2 52-7/16 30 22 8.46 4.08 12.93 31-31/32 18-3/8 4.08 No 34 50
35-1/2 48-7/16 30 20 7.65 3.64 11.94 31-31/32 16-3/8 3.64 No 34 46
35-1/2 40-7/16 30 16 6.04 2.75 9.97 31-31/32 12-3/8 2.75 No 34 38
35-1/2 36-7/16 30 14 5.24 2.3 8.98 31-31/32 10-3/8 2.3 No 34 34
33-1/2 80-7/16 28 36 13.12 6.74 18.71 29-31/32 32-3/8 6.74 Yes 32 78
33-1/2 76-7/16 28 34 12.38 6.32 17.78 29-31/32 30-3/8 6.32 Yes 32 74
33-1/2 72-7/16 28 32 11.62 5.91 16.85 29-31/32 28-3/8 5.91 Yes 32 70
33-1/2 68-7/16 28 30 10.88 5.49 15.92 29-31/32 26-3/8 5.49 No 32 66
33-1/2 64-7/16 28 28 10.12 5.07 14.99 29-31/32 24-3/8 5.07 No 32 62
33-1/2 60-7/16 28 26 9.38 4.66 14.06 29-31/32 22-3/8 4.66 No 32 58
33-1/2 56-7/16 28 24 8.62 4.24 13.13 29-31/32 20-3/8 4.24 No 32 54
33-1/2 52-7/16 28 22 7.88 3.82 12.2 29-31/32 18-3/8 3.82 No 32 50
33-1/2 48-7/16 28 20 7.12 3.41 11.27 29-31/32 16-3/8 3.41 No 32 46
33-1/2 40-7/16 28 16 5.62 2.58 9.41 29-31/32 12-3/8 2.58 No 32 38
33-1/2 36-7/16 28 14 4.88 2.16 8.48 29-31/32 10-3/8 2.16 No 32 34
31-1/2 80-7/16 26 36 12.15 6.29 17.6 27-31/32 32-3/8 6.29 Yes 30 78
31-1/2 76-7/16 26 34 11.46 5.9 16.72 27-31/32 30-3/8 5.9 Yes 30 74
31-1/2 72-7/16 26 32 10.76 5.51 15.85 27-31/32 28-3/8 5.51 No 30 70
31-1/2 68-7/16 26 30 10.07 5.12 14.97 27-31/32 26-3/8 5.12 No 30 66
31-1/2 64-7/16 26 28 9.38 4.73 14.1 27-31/32 24-3/8 4.73 No 30 62
31-1/2 60-7/16 26 26 8.68 4.35 13.22 27-31/32 22-3/8 4.35 No 30 58
31-1/2 56-7/16 26 24 7.99 3.96 12.35 27-31/32 20-3/8 3.96 No 30 54
31-1/2 52-7/16 26 22 7.29 3.57 11.47 27-31/32 18-3/8 3.57 No 30 50
31-1/2 48-7/16 26 20 6.6 3.18 10.6 27-31/32 16-3/8 3.18 No 30 46
31-1/2 40-7/16 26 16 5.21 2.4 8.85 27-31/32 12-3/8 2.4 No 30 38
31-1/2 36-7/16 26 14 4.51 2.02 7.97 27-31/32 10-3/8 2.02 No 30 34
29-1/2 80-7/16 24 36 11.18 5.84 16.48 25-31/32 32-3/8 5.84 Yes 28 78
29-1/2 76-7/16 24 34 10.54 5.48 15.66 25-31/32 30-3/8 5.48 No 28 74
29-1/2 72-7/16 24 32 9.9 5.12 14.84 25-31/32 28-3/8 5.12 No 28 70
45-1/2 76-7/16 40 34 17.88 8.85 24.15 41-31/32 30-3/8 8.85 Yes 44 74
45-1/2 72-7/16 40 32 16.79 8.27 22.89 41-31/32 28-3/8 8.27 Yes 44 70
45-1/2 68-7/16 40 30 15.71 7.69 21.62 41-31/32 26-3/8 7.69 Yes 44 66
45-1/2 64-7/16 40 28 14.62 7.1 20.36 41-31/32 24-3/8 7.1 Yes 44 62
45-1/2 80-7/16 40 36 18.96 9.44 25.42 41-31/32 32-3/8 9.44 Yes 44 78
Ultra Series XL Sterling Double Hung
XL Sterling DH Standard and Impact Performance (Standard or Reverse Cottage)
Frame Size Glass Size Area Size Clear Opening Cottage-Style Sash Opening Additional Details
Width (in.) Height (in.) Width (in.) Height (in.) Bottom Sash Height Daylight (ft²) Vent (ft²) Frame (ft²) Width (in.) Height (in.) Area (ft²) Meets Most EER Codes Top Sash Glass % Bottom Sash Glass % Width (in.) Height (in.)
21-1/2 68-7/16 16 24 36 6.04 2.34 10.22 16-9/16 20-3/8 2.34 No 0.4 0.6
25-1/2 68-7/16 20 24 36 7.65 2.91 12.12 20-9/16 20-3/8 2.91 No 0.4 0.6
29-1/2 68-7/16 24 24 36 9.26 3.48 14.02 24-9/16 20-3/8 3.48 No 0.4 0.6
33-1/2 68-7/16 28 24 36 10.88 4.04 15.92 28-9/16 20-3/8 4.04 No 0.4 0.6
37-1/2 68-7/16 32 24 36 12.49 4.61 17.82 32-9/16 20-3/8 4.61 No 0.4 0.6
41-1/2 68-7/16 36 24 36 14.1 5.17 19.72 36-9/16 20-3/8 5.17 No 0.4 0.6
45-1/2 68-7/16 40 24 36 15.71 5.74 21.62 40-9/16 20-3/8 5.74 No 0.4 0.6