The window sizes below meet the firecode specifications

Casement Egress Regular Hinges

Width 26.5 27 28 29 30 31 32 33 34 35 36 37
Height 41.25 40 38 36 34.5 33 31.5 30.25 29.25 28.25 27.25 26.5
Width 38 39 40 41 42 43 44 45 46 47 48
Height 25.5 24.75 24.25 23.5 23 22.25 21.75 21.25 20.75 20.5 20

Casement Window with Egress Hinges

Width 23 24 25 26 27 28 29 30 31 32 33 34 35
Height 39 37 35.25 33.75 32.25 31 29.75 28.75 27.75 26.75 26 25.25 24.5
Width 36 37 38 39 40 41 42 43 44 45 46 47 48
Height 23.75 23.25 22.75 22 21.5 21 20.75 20.25 20 20 20 20 20

Double Slider

Width 84.75 80 76 72.5 69.25 66.5 63.75 61.5 59.25 57.25 55.5 53.75
Height 20 21 22 23 24 25 26 27 28 29 30 31
Width 52.25 50.75 49.5 48.25 47 46 44.75 44 43 42 41.75
Height 32 33 34 35 36 37 38 39 40 41 41.5

Double Hung

Width 20 21 22 23 24 25 25 26 27 28 29 31
Height 84.75 80 76 72.5 69.25 66.5 63.75 62.5 59.25 57.25 55.5 53.75
Width 32 33 34 35 36 37 38 39 40 41 41.75
Height 52.25 50.75 49.5 48.25 47 46 44.75 44 43 42 41.5

Single Slider

Width 83 79 75 71.5 68.25 65.25 62.75 60.25 58 56 54.25 52.5
Height 20.125 21 22 23 24 25 26 27 28 29 30 31
Width 51 49.5 48.25 46.75 45.75 44.5 43.5 42.5 41.75 40.75 40
Height 32 33 34 35 36 37 38 39 40 41 41.75

Single Hung

Width 20.125 21 22 23 24 25 26 27 28 29 30 31
Height 83 79 75 71.5 68.25 65.25 62.75 60.25 58 56 54.25 52.5
Width 32 33 34 35 36 37 38 39 40 41 41.75
Height 51 49.5 48.25 46.75 45.75 44.5 43.5 42.5 41.75 40.75 40

Hopper

Width 40.25 38 36 34.25 32.75 31.5
Height 21 22 23 24 25 26