Stair Tread Size Mm

Junior 11 12.

Stair tread size mm.

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. Mm imperial inches metric mm imperial inches 5 157 6 3 16 64 2 1 2 n a n a 6 187 7 3 8 114 4 1 2 n a n a. Type bar size and surface of grating type of nosing checker plate is standard width of tread. Length of foot mm width of foot mm calculate.

Harvard university lists typical tread sizes between 8 and 11 1 2 inches. Here is a drawing detailing our standard stair tread and riser dimensions. These dimensions may be useful when laying out a staircase or if you have general questions about the size and shape of a traditional tread or a retro tread. The riser height max 7 ins 19 7cm is limited by the way in which we come down the stairs.

Treads is a trading name of esher mail order ltd. The tread size min 10ins 25 4cm is dictated by the average adult foot size although it is not necessary to be able to fit your entire foot on a tread in order for walking up the stairs to be both comfortable and safe. Junior 10 11. Enter the length and width of your biggest foot into our size calculator.

When ordering or specifying tru weld bar grating treads please confirm. Standard stair tread 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.