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  1. #1
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    Default Timber stair treads

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

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  3. #2
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    25mm for solid timber, 32mm for MDF
    The person who never made a mistake never made anything

    Cheers
    Ray

  4. #3
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    Quote Originally Posted by rwbuild View Post
    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

  5. #4
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    At 1000mm wide with no rises

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

  6. #5
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    Quote Originally Posted by Camelot View Post
    At 1000mm wide with no rises

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

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