# What is the minimum depth of a step?

**Depth**: 10 to 11 Inches,

**Minimum**

**step**tread is the flat, horizontal surface that you walk on. The tread

**depth**is the distance from the front edge, or nosing (a tread projection that overhangs the riser below), of one

**step**to the front edge or nose of the next

**step**, measured horizontally.

Also asked, what is the standard depth of a step?

The general rule (in the US) is 7-11 (a 7 inch rise and 11 inch run) (17.78cm-27.94cm). More exactly, no more than 7 3/4 inches (19.7cm) for the riser (vertical) and a minimum of 10 inches (25.4cm) for the tread (horizontal or **step**).

Subsequently, question is, at what height is a step required? Researchers found that the ideal **step height** is 7.2 inches and the ideal **step** length should be anywhere between 11 and 12 inches.

Consequently, what is the minimum depth of a stair tread?

11 inches

How wide does a step need to be?

- The stair treads **should** be at least 36 inches **wide**. But, we recommend that stairs **should** be at least 48 inches **wide** so they don't feel cramped. - The maximum allowable stair rise is 7 ^{3}^{/}^{4} inches, and the minimum stair rise is 4 inches.