Stair Geometry Before a Floor Plan Fixes Rise, Run, Headroom, and Landing Space
Does the stair drawn as a neat rectangle still fit after finished floor levels, framing depth, headroom, and landings are counted? Before the floor plan is fixed, the architect and plans examiner must calculate the stair’s complete three-dimensional envelope under the code adopted where the permit will be issued, because one added floor finish can make the top riser taller and force walls, openings, or landings to move. The essential planning rule is simple: treat the stair … Read more