Dimensional Uniformity: Tread Depth

The tread depth on stairs in commercial buildings should essentially appear the same size and shape. The greatest tread depth should not exceed the smallest by more than ⅜ inch within any flight of stairs.
The tread depth on stairs in commercial buildings should essentially appear the same size and shape. The greatest tread depth should not exceed the smallest by more than ⅜ inch within any flight of stairs.

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