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Understanding Winder Tread Minimums — Measure Depth and Check for Safety

Beginner60 mins

Part of project

Winder Step Measurement · Step 4 of 5

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The video begins by introducing the importance of updated stair building codes, specifically referencing the 2024 International Residential Code for winder steps. It highlights the primary requirement: a minimum of 6 inches for the tread depth at any point within the clear width of the stair, usually at the narrowest point of the winder. Several diagrammatic examples of winder steps are shown, illustrating both compliant and non-compliant designs based on this 6-inch minimum. The narrator points out that a simple square-cut winder may not meet this requirement if the narrowest point falls below 6 inches.

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