多谢提醒！简直就是nightmare。我找到我们州的code

来源: sac 于 2022-11-04 15:21:49 [] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (667 bytes)
回答: This is a s--ty job. Here is the code requirement: 由 borisg 于 2022-11-04 14:35:18

504.2 Treads and Risers. All steps on a flight of stairs shall have uniform riser heights and uniform tread depths. Risers shall be 4 inches (100 mm) high minimum and 7 inches (180 mm) high maximum. Treads shall be 11 inches (280 mm) deep minimum.

 

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