What Is The 25 Stair Tread And Riser Design Rule? - Construction Education And Safety Tips
https://www.homebuildingandrepairs.co... Visit our website to learn more about stair building, architecture and home improvement. Here's a brief explanation of the 25 stair rule for creating safe stair steps to walk up and down, even though it won't always provide you with the very best results. In my opinion, it's a rule of thumb design tool that works within the average measurements of building code minimums and maximums.