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Thread: Bolting treads to steel stringer

  1. 23rd Sep 2010, 10:26 AM #1
    Schumi
    Schumi is offline Novice
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    Default Bolting treads to steel stringer

    Hi,

    My welder who is fabricating a set of steel stringers for me has asked me how many fixing points I would like per tread.

    I will be using 2 140x45 per tread. From any experience out there is 1 bolt per 140x45 sufficent for each side or should I be using 2 per piece.

    The treads will be bolted to 255mm angle which is welded to the stringer so there will be a slight over hang on each end of about 10-15mm.

    From my understanding any overhang between treads should not be included in the overall run is this correct?

    I have decided to fabricate a set of stringers out of ply as template prior to handing over all the measurments . I have learnt my lesson once before when using steel.

    Thanks

    Anthony
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  2. 23rd Sep 2010, 11:24 AM #2
    mijati
    mijati is offline Old Builder
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    Default

    Using 2 bolts each end will ensure the timber tread doesn't skew over time.
    Good luck with it...
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  3. 24th Sep 2010, 07:57 PM #3
    Bloss
    Bloss is offline Old Chippy - 4K Club Member
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    Default

    Quote Originally Posted by mijati View Post
    Using 2 bolts each end will ensure the timber tread doesn't skew over time.
    Good luck with it...
    Two each side minimum. Go to forum member blocklayer's (Greg) site for help in designing the stairs: Builders Construction Calculators - Contractors, Tradies and DIY more precisely here: Stair Calculator - Layout Stair Stringer, Headroom Rise Run - Metric
    Advice from me on this forum is general and for guidance based on information given by the member posing the question. Not to be used in place of professional advice from people appropriately qualified in the relevant field. All structural work must be approved and constructed to the BCA or other relevant standards by suitably licensed persons. The person doing the work and reading my advice accepts responsibility for ensuring the work done accords with the applicable law.
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