Stair stringer calculator

Calculates cut stair stringers. Stairs can be calculated using a rough opening height and a maximum rise (or number of treads), or by riser height and number of treads. Results calculated include a list of marks to accurately lay out a stringer without risk of cumulative error. Includes options to account for tread and floor thicknesses.

Easily input values in decimal or feet and inches format. Switch results between decimal and feet and inches.