What is the tread dimension typically required for stairs?

The standard dimension for the tread of stairs that is commonly recognized is 11 inches. This dimension is important for ensuring safety and usability in building design. A tread that is 11 inches deep provides enough space for a person's foot to safely land and helps prevent slips and falls.

When stair treads are designed with the proper depth, they not only contribute to a comfortable walking experience but also adhere to building codes that specify minimum requirements for tread dimensions to enhance safety in public and residential buildings. A tread depth of 11 inches strikes the right balance between accessibility for people of all ages and abilities while complying with safety standards. Thus, having a tread dimension of 11 inches is the most practical and widely accepted design practice.