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Thread: External Stairs

  1. #1
    Join Date
    May 2005
    Location
    Brisbane
    Posts
    20

    Default External Stairs

    Can someone shed light on the standard for external stairs? According to AS1657 stair treads should have a minimum overlap of 10mm. My friend a builder tells me that this doesn't apply to external stairs. Allan Staines in "How to Build a Deck" makes no reference to such an overlap. Also is there a requirement to have a maximum opening between the treads, so that children cant fall through on an angle between the treads.

    If anyone can clear this up for me that would be great.

    Cheers

    Garves

  2. #2
    Join Date
    Jan 2005
    Location
    Sydney
    Posts
    191

    Default

    max gap for internal stairs or hand rails etc is 125mm, this should apply out side as well.

  3. #3
    Join Date
    Nov 2001
    Location
    Parkside - South Australia
    Age
    46
    Posts
    479

    Default

    I think Gaza is refering to the overhang of the tread over the riser .... I will check with the BCA tomorrow at work and let you know. I don't think I have a copyof the AS but I will check.
    Now proudly sponsored by Binford Tools. Be sure to check out the Binford 6100 - available now at any good tool retailer.

  4. #4
    Join Date
    Jun 2003
    Location
    brisbane
    Posts
    200

    Default

    I think the 10 mm overlap is refering to stairs with riser boards

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