Compare · Stair Calculator
Two independent scenarios side by side.
Scenario A
Stair stringer
Number of steps
15
Riser height
7.20 in
Tread depth
10.60 in
2R + T = 25 rule
Stringer length
192.21 in
Scenario B
Stair stringer
Number of steps
15
Riser height
7.20 in
Tread depth
10.60 in
2R + T = 25 rule
Stringer length
192.21 in