Timber stair treads

[mic-d]

Anyone please , what’s the minimum allowable thickness of timber stair treads in the building code. 50mm?

[rwbuild]

25mm for solid timber, 32mm for MDF

[mic-d]

25mm for solid timber, 32mm for MDF

Thanks Ray, oh I wonder given you’ve included mdf, I should have mentioned it’s an exterior staircase on steel stringers at about 750mm span and 1000mm treads no risers

[Camelot]

At 1000mm wide with no rises

F27 = 32mm
F22 = 34mm
F17 = 36mm
F11 = 40mm
F8 = 42mm
F5 = 46mm (H3 Treated pine)

[mic-d]

At 1000mm wide with no rises

F27 = 32mm
F22 = 34mm
F17 = 36mm
F11 = 40mm
F8 = 42mm
F5 = 46mm (H3 Treated pine)

thanks Camelot