StairSmith — parametric staircase design tool

Parametric staircase design tool for practitioners

Design straight, single winder and double winder timber staircases in full 3D. Set rise, going and width, shape kite winder turns, and export IFC4 models and dimensioned DXF drawings — free, browser-based, no login required.

DESIGNED FOR

Architects, Architectural Technologists, Surveyors and Contractors working on residential staircases — who can check and verify their own designs.

BEFORE YOU BEGIN

Tool preview — accept the terms to launch

StairSmith does not check or assure compliance. It is a design tool — it will let you model a staircase that is right or wrong, and the design remains your responsibility. Reference values shown in the tool are for information only. All outputs must be independently checked and verified by a competent person before any use.