Stair Rise Calc
Answer One page per step count, each one covering a band of total rise.

Stair stringers by step count

Step counts 2to16
Stringer sizes
15
Rise covered
8into124in
A bar for each step count from 2 to 16, showing the total rise it covers, from 8 inches at the shortest to 124 inches at the longest.Steps Total rise it covers 2 15 in 3 23 in 4 31 in 5 38 in 6 46 in 7 54 in 8 62 in 9 69 in 10 77 in 11 85 in 12 93 in 13 100 in 14 108 in 15 116 in 16 124 in Least 8 in
Coverage

What each step count reaches

Steps Covers from Up to Riser Tread
2 8in 15in 7in 11in
3 12in 23in 7in 11in
4 16in 31in 7in 11in
5 20in 38in 7in 11in
6 24in 46in 7in 11in
7 28in 54in 7in 11in
8 32in 62in 7in 11in
9 36in 69in 7in 11in
10 40in 77in 7in 11in
11 44in 85in 7in 11in
12 48in 93in 7in 11in
13 52in 100in 7in 11in
14 56in 108in 7in 11in
15 60in 116in 7in 11in
16 64in 124in 7in 11in
Calculators

Work out one part on its own

Source

Where the limits come from

2 sources, with the date each was read

Building codes are adopted and amended locally. Confirm every figure with the code your jurisdiction has adopted before you cut.

Updated September 2026