StairPlan: Stair Calculator

Stair calculator for stringer length, riser height, tread depth, and code compliance across building codes.

iOSfreemium

StairPlan is a calculator app for planning staircases, computing stringer length, riser height, tread depth, and pitch angle for a range of stair shapes. It checks the results against major building codes (US, Canadian, and UK), aimed at contractors, builders, and DIY renovators.

Website iOS

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