By Huu Khanh Nguyen · Updated October 27, 2026 · stair, tread
A solid rectangular stair tread with a rounded nosing, in timber, stone, concrete, steel or glass.
| Name | Default | Unit |
|---|---|---|
| Width across the flight (x) | 1000 | mm |
| Going, nosing to nosing (y); the tread is going + overhang deep | 267 | mm |
| Thickness (z, from the top surface down) | 25 | mm |
| Nosing overhang beyond the riser line (y) | 25 | mm |
| Nosing edge radius | 6 | mm |
| Finish | white |