This table shows the amount of floor space used for each stair.
Lapeyre Stair, Inc. recommends the 56 degree stair, providing floor space is available.
VERTICAL RISE
PROJECTIONS SHOWN IN INCHES FOR:
IN
FEET
IN
INCHES
2.0
24
N/A
N/A
15.86
2.5
30
N/A
N/A
18.49
3.0
36
28.93
N/A
20.31
3.5
42
33.11
23.08
22.97
4.0
48
37.25
25.66
25.56
4.5
54
41.37
28.20
28.10
5.0
60
44.91
30.28
30.18
5.5
66
49.07
32.83
32.73
6.0
72
53.21
35.36
35.26
6.5
78
57.33
37.86
37.76
7.0
84
61.44
40.04
39.94
7.5
90
65.15
42.56
42.46
8.0
96
69.27
45.05
44.95
8.5
102
73.39
47.28
47.18
9.0
108
77.49
49.78
49.68
9.5
114
81.59
52.27
52.17
10.0
120
85.38
54.75
54.65
10.5
126
89.49
57.01
56.91
11.0
132
93.59
59.50
59.40
11.5
138
97.68
61.98
61.87
12.0
144
101.77
64.45
64.35
12.5
150
105.62
66.74
66.64
13.0
156
109.71
69.21
69.11
13.5
162
113.80
71.68
71.58
14.0
168
117.89
73.98
73.88
14.5
174
121.97
76.45
76.35
15.0
180
125.85
78.92
78.82
15.5
186
129.94
81.38
81.28
16.0
192
134.02
83.70
83.60
16.5
198
138.11
86.16
86.06
17.0
204
142.19
88.62
88.52
17.5
210
146.09
91.08
90.98
18.0
216
150.17
93.41
93.31
18.5
222
154.25
95.87
N/A
19.0
228
158.33
98.33
N/A
19.5
234
162.40
100.78
N/A
20.0
240
166.32
103.12
N/A