Stair Calculator: Stringer Cut

Every set of DIY stairs starts with the same puzzle: one total height, and the question of how many steps should divide it. StairStepScan answers it on the spot. Measure the rise with a tape, type it in, and the app splits it into even risers, pairs them with a comfortable tread, and draws the whole staircase as a dimensioned side profile you can build from. PLAN - Riser and tread worked out from one measured height - Compare step counts side by side, with the classic 2R+T comfort rule showing which option walks best - Slope angle and stringer length, drawn right on the diagram BUILD - A cut list in plain carpentry terms: stringer notches, tread boards, riser boards - Millimeters or feet-and-inches with proper fractions - Save every staircase — the deck steps, the shed, the basement HONEST TOOL - Comfort ranges are editable defaults, not building law. Stair codes differ by region, and…