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Deck - Connecting new pergola posts to existing handrail on deck

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  1. #1
    Apprentice (new member)
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    Smile Deck - Connecting new pergola posts to existing handrail on deck

    Advice please I have finished my 50sqm hardwood deck a few months ago, and now wish to complete the pergola over the eastern side of the deck. How do I connect a new 90x90 post for the pergola to the existing 170x70 timber handrail? Have attached photos and basic plan for reference.

    In retrospect, I should have continued the post through. I want to avoid timber to timber contact between post and handrail and avoid rot.

    Background: The deck is 400mm off the ground, 90x90 posts connected to post stirrups dynabolted to concrete slab, post bolted to bearers and joists a 170x70 continuous handrail, blackbutt hardwood decking. Will be using 145x45 rafters connected to the 'ledger' bolted through the fascia to the house rafters. Roofing will be a mix of poly and colorbond.

    Thanks all.
    Attached Thumbnails Attached Thumbnails 2009_10_29_2062-day-1-old-deck-removed.jpg   2009_11_11_2289-day-6-stacker-door-decking-complete.jpg   2009_12_22_2731.jpg   2009_12_22_2730.jpg  
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  2. #2
    1K Club Member
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    Default

    Are the existing handrail posts in the right places for the proposed pergola?

  3. #3
    Member
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    Sep 2009
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    Default

    personally, I would be removing your current posts and replacing with posts that entend up to the desired roof height.

    Will be a PITA but shouldnt be impossible.

    And this way you know its done right.

  4. #4
    Resigned SilentButDeadly's Avatar
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    Default

    Remove the railing. Get some steel RHS collars (~250mm long) made up to slip over the existing posts and bolt/screw together - weld tags on either side of the collars to attach handrails. Use a wide timber planking for the rail (enough to carry a dinner plate) as this will hide some of the collar and hang on to your beer. Paint or better still powdercoat the collars to either hide or make a feature of them. Try and be a bit 'creative' withe the top side of the collar in terms of pattern - you are going to be able to see them so try to make them presentable/arty/colourful/reflection of your character rather than a simple flat square chunks of steel.
    Joined RF in 2006...Resigned in 2020.

  5. #5
    Apprentice (new member)
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    Aug 2010
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    Wollongong
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    Default

    Thanks all.
    Yes the existing posts are in the right location.
    Can't afford to replace the handrails on top of the pergola costs.
    I dread the thought of removing the handrail at all, it was the hardest thing to get right and was secured with 250mm batton head screws!

    I will trial a post anchor centre pin of centre fix with a dummy connection with an off cut.

    Next deck will have continuous posts...

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