Junior 12 13.
Stair tread size mm.
Treads is a trading name of esher mail order ltd.
However the americans with disabilities act ada lists the minimum tread size as 11 inches which would be the effective minimum and likely the average size of the tread for any stairs built for public use.
Type bar size and surface of grating type of nosing checker plate is standard width of tread.
Harvard university lists typical tread sizes between 8 and 11 1 2 inches.
Size min length max length max width.
Junior 10 11.
Here is a drawing detailing our standard stair tread and riser dimensions.
Responding to the movement of the human body the sizes and relationships of stair risers and treads are regulated to make vertical motion safe and easy.
Length of foot mm width of foot mm calculate.
Junior 11 12.
Steep stairs make climbing more tiring and dangerous while shallow stairs are awkward and inefficient for our human stride.
Standard stair tread dimensions.
When ordering or specifying tru weld bar grating treads please confirm.
The riser height max 7 ins 19 7cm is limited by the way in which we come down the stairs.
Enter the length and width of your biggest foot into our size calculator.