Stringer cut dimensions

Total steps

Actual rise

Actual run

Stringer length

Bottom riser cut adjustment

To account for your 1" tread, cut the bottom riser to 0".

Tape measure marks

Exact on-center spacing: 0"

Job dimensions

Total floor-to-floor rise (in)

Total available run (in)

Ideal step rise (in)

Tread thickness (in)

Baluster width (in)

Max gap code (in)

How this calculator works

It estimates step count from total rise and ideal rise, computes actual rise/run and stringer length, then determines equal baluster spacing so gaps stay within the specified maximum. Always verify local code requirements and field conditions before cutting.