Co-Authored By:

7 inches

In respect to this, what is the maximum height of a stair riser?

7 3/4 inches

**riser height**is 3/8". (This means that the difference in

**height**between the tallest and the shortest

**riser**on your

**stairs can**be no more than 3/8".)

Similarly, you may ask, what is the maximum height of a step?

Risers must have a **maximum height** of seven inches and a minimum **height** of four inches. Single-family homes and townhouses are permitted to have a **maximum** riser **height** of 7.75 inches.

You are not **required** to have an **nosing**/overhang on your **stair** treads. If your **stairs** don't have a **nosing** you are **required** to have a tread that is at least 11 inches long.