StairMark: Stair Calculator

Measure. Calculate. Mark. Cut. StairMark is a practical stair stringer calculator built for carpenters, deck builders, contractors and DIYers who want clear stair calculations without the guesswork. Enter your total rise and total run, and StairMark works out the measurements you need to lay out your stringer. Get your stair calculations in seconds, including: • Number of risers • Equalized riser height • Number of treads • Tread depth • Stringer length • Stair angle • Framing-square tongue and blade measurements BUILT FOR STRINGER LAYOUT StairMark doesn't stop at giving you a few numbers. View a clear visual stringer layout showing your calculated rise, tread and stringer dimensions, then use the framing-square measurements to transfer the layout to your material. CHECK COMMON STAIR LIMITS Quickly compare your calculated stair dimensions against common reference limits for riser…