Stair Angle Chart - Mitre Contracting, Inc.

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UNIT
UNIT RISE
RUN
6.5
6.5625
6.625
6.6875
6.75
6.8125
6.875
6.9375
7
7.0625
7.125
7.1875
7.25
7.3125
7.375
7.4375
7.5
7.5625
7.625
7.6875
7.75
7.8125
7.875
7.9375
8
9
35.84
36.10
36.36
36.61
36.87
37.12
37.38
37.63
37.87
38.12
38.37
38.61
38.85
39.09
39.33
39.57
39.81
40.04
40.27
40.50
40.73
40.96
41.19
41.41
41.63
9.0625
35.65
35.91
36.17
36.42
36.68
36.93
37.18
37.43
37.68
37.93
38.17
38.42
38.66
38.90
39.14
39.38
39.61
39.84
40.08
40.31
40.54
40.76
40.99
41.21
41.44
9.125
35.46
35.72
35.98
36.24
36.49
36.74
37.00
37.24
37.49
37.74
37.98
38.23
38.47
38.71
38.95
39.18
39.42
39.65
39.88
40.11
40.34
40.57
40.79
41.02
41.24
9.1875
35.28
35.54
35.79
36.05
36.30
36.56
36.81
37.06
37.30
37.55
37.79
38.04
38.28
38.52
38.75
38.99
39.23
39.46
39.69
39.92
40.15
40.38
40.60
40.83
41.05
9.25
35.10
35.35
35.61
35.87
36.12
36.37
36.62
36.87
37.12
37.36
37.61
37.85
38.09
38.33
38.57
38.80
39.04
39.27
39.50
39.73
39.96
40.18
40.41
40.63
40.86
9.3125
34.91
35.17
35.43
35.68
35.94
36.19
36.44
36.68
36.93
37.18
37.42
37.66
37.90
38.14
38.38
38.61
38.85
39.08
39.31
39.54
39.77
39.99
40.22
40.44
40.66
9.375
34.73
34.99
35.25
35.50
35.75
36.00
36.25
36.50
36.75
36.99
37.23
37.48
37.72
37.95
38.19
38.43
38.66
38.89
39.12
39.35
39.58
39.81
40.03
40.25
40.48
9.4375
34.56
34.81
35.07
35.32
35.57
35.82
36.07
36.32
36.57
36.81
37.05
37.29
37.53
37.77
38.01
38.24
38.47
38.71
38.94
39.17
39.39
39.62
39.84
40.07
40.29
9.5
34.38
34.64
34.89
35.14
35.39
35.64
35.89
36.14
36.38
36.63
36.87
37.11
37.35
37.59
37.82
38.06
38.29
38.52
38.75
38.98
39.21
39.43
39.66
39.88
40.10
9.5625
34.21
34.46
34.71
34.97
35.22
35.47
35.71
35.96
36.21
36.45
36.69
36.93
37.17
37.41
37.64
37.87
38.11
38.34
38.57
38.80
39.02
39.25
39.47
39.69
39.92
9.625
34.03
34.29
34.54
34.79
35.04
35.29
35.54
35.78
36.03
36.27
36.51
36.75
36.99
37.23
37.46
37.69
37.93
38.16
38.39
38.61
38.84
39.07
39.29
39.51
39.73
9.6875
33.86
34.11
34.37
34.62
34.87
35.12
35.36
35.61
35.85
36.09
36.33
36.57
36.81
37.05
37.28
37.51
37.75
37.98
38.21
38.43
38.66
38.88
39.11
39.33
39.55
9.75
33.69
33.94
34.20
34.45
34.70
34.94
35.19
35.43
35.68
35.92
36.16
36.40
36.63
36.87
37.10
37.34
37.57
37.80
38.03
38.25
38.48
38.70
38.93
39.15
39.37
9.8125
33.52
33.77
34.03
34.28
34.52
34.77
35.02
35.26
35.50
35.74
35.98
36.22
36.46
36.69
36.93
37.16
37.39
37.62
37.85
38.08
38.30
38.53
38.75
38.97
39.19
9.875
33.35
33.61
33.86
34.11
34.35
34.60
34.85
35.09
35.33
35.57
35.81
36.05
36.29
36.52
36.75
36.99
37.22
37.45
37.67
37.90
38.13
38.35
38.57
38.79
39.01
9.9375
33.19
33.44
33.69
33.94
34.19
34.43
34.68
34.92
35.16
35.40
35.64
35.88
36.11
36.35
36.58
36.81
37.04
37.27
37.50
37.72
37.95
38.17
38.40
38.62
38.84
10
33.02
33.27
33.52
33.77
34.02
34.26
34.51
34.75
34.99
35.23
35.47
35.71
35.94
36.18
36.41
36.64
36.87
37.10
37.33
37.55
37.78
38.00
38.22
38.44
38.66
10.0625
32.86
33.11
33.36
33.61
33.85
34.10
34.34
34.58
34.82
35.06
35.30
35.54
35.77
36.01
36.24
36.47
36.70
36.93
37.15
37.38
37.60
37.83
38.05
38.27
38.49
10.125
32.70
32.95
33.20
33.44
33.69
33.93
34.18
34.42
34.66
34.90
35.13
35.37
35.60
35.84
36.07
36.30
36.53
36.76
36.98
37.21
37.43
37.65
37.87
38.09
38.31
10.1875
32.54
32.79
33.04
33.28
33.53
33.77
34.01
34.25
34.49
34.73
34.97
35.20
35.44
35.67
35.90
36.13
36.36
36.59
36.81
37.04
37.26
37.48
37.70
37.92
38.14
10.25
32.38
32.63
32.88
33.12
33.37
33.61
33.85
34.09
34.33
34.57
34.80
35.04
35.27
35.50
35.74
35.96
36.19
36.42
36.65
36.87
37.09
37.31
37.53
37.75
37.97
10.3125
32.22
32.47
32.72
32.96
33.21
33.45
33.69
33.93
34.17
34.41
34.64
34.88
35.11
35.34
35.57
35.80
36.03
36.25
36.48
36.70
36.93
37.15
37.37
37.59
37.80
10.375
32.07
32.31
32.56
32.80
33.05
33.29
33.53
33.77
34.01
34.24
34.48
34.71
34.95
35.18
35.41
35.64
35.86
36.09
36.31
36.54
36.76
36.98
37.20
37.42
37.64
10.4375
31.91
32.16
32.40
32.65
32.89
33.13
33.37
33.61
33.85
34.08
34.32
34.55
34.78
35.01
35.24
35.47
35.70
35.93
36.15
36.37
36.59
36.81
37.03
37.25
37.47
10.5
31.76
32.01
32.25
32.49
32.74
32.98
33.22
33.45
33.69
33.93
34.16
34.39
34.62
34.85
35.08
35.31
35.54
35.76
35.99
36.21
36.43
36.65
36.87
37.09
37.30
10.5625
31.61
31.85
32.10
32.34
32.58
32.82
33.06
33.30
33.53
33.77
34.00
34.23
34.47
34.70
34.92
35.15
35.38
35.60
35.83
36.05
36.27
36.49
36.71
36.92
37.14
10.625
31.46
31.70
31.94
32.19
32.43
32.67
32.91
33.14
33.38
33.61
33.85
34.08
34.31
34.54
34.77
34.99
35.22
35.44
35.66
35.89
36.11
36.33
36.54
36.76
36.98
10.6875
31.31
31.55
31.79
32.04
32.28
32.51
32.75
32.99
33.22
33.46
33.69
33.92
34.15
34.38
34.61
34.83
35.06
35.28
35.51
35.73
35.95
36.17
36.38
36.60
36.82
10.75
31.16
31.40
31.64
31.89
32.12
32.36
32.60
32.84
33.07
33.30
33.54
33.77
34.00
34.22
34.45
34.68
34.90
35.13
35.35
35.57
35.79
36.01
36.22
36.44
36.66
10.8125
31.01
31.26
31.50
31.74
31.98
32.21
32.45
32.68
32.92
33.15
33.38
33.61
33.84
34.07
34.30
34.52
34.75
34.97
35.19
35.41
35.63
35.85
36.07
36.28
36.50
10.875
30.87
31.11
31.35
31.59
31.83
32.06
32.30
32.53
32.77
33.00
33.23
33.46
33.69
33.92
34.14
34.37
34.59
34.81
35.04
35.26
35.48
35.69
35.91
36.13
36.34
10.9375
30.72
30.96
31.20
31.44
31.68
31.92
32.15
32.39
32.62
32.85
33.08
33.31
33.54
33.77
33.99
34.22
34.44
34.66
34.88
35.10
35.32
35.54
35.75
35.97
36.18
11
30.58
30.82
31.06
31.30
31.53
31.77
32.01
32.24
32.47
32.70
32.93
33.16
33.39
33.61
33.84
34.06
34.29
34.51
34.73
34.95
35.17
35.38
35.60
35.81
36.03
11.0625
30.44
30.68
30.92
31.15
31.39
31.63
31.86
32.09
32.32
32.55
32.78
33.01
33.24
33.47
33.69
33.91
34.14
34.36
34.58
34.80
35.01
35.23
35.45
35.66
35.87
11.125
30.30
30.54
30.77
31.01
31.25
31.48
31.72
31.95
32.18
32.41
32.64
32.87
33.09
33.32
33.54
33.76
33.99
34.21
34.43
34.64
34.86
35.08
35.29
35.51
35.72
11.1875
30.16
30.40
30.63
30.87
31.10
31.34
31.57
31.80
32.03
32.26
32.49
32.72
32.94
33.17
33.39
33.62
33.84
34.06
34.28
34.49
34.71
34.93
35.14
35.36
35.57
11.25
30.02
30.26
30.49
30.73
30.96
31.20
31.43
31.66
31.89
32.12
32.35
32.57
32.80
33.02
33.25
33.47
33.69
33.91
34.13
34.35
34.56
34.78
34.99
35.21
35.42
Directions: From the title bars follow the unit rise column and unit run row to their intersection. This number is the angle or pitch of your stair. That portion
of the angle field that is highlighted represents stairs that are less comfortable for most residential stairs.

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