1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

fence posts supporting carport roof?

Discussion in 'Wood / Woodwork / Carpentry' started by tate, 14 May 2013.

  1. tate

    tate

    Joined:
    4 Nov 2012
    Messages:
    23
    Thanks Received:
    0
    Location:
    Essex
    Country:
    United Kingdom
    hi all
    just a quick question as I cant find an answer through other posts..
    I want to build a 6mts x 3.5mts carport with polycarbonate roof fitted onto joists with glazing bars along side of the house..im using c16 timber for roof framing. . just need to know if 4x4 treated fence posts are strong enough for the roof to sit on? or do they do c16 or structural post which
    should be use to support the roof?

    thanks
     
  2. noseall

    noseall

    Joined:
    2 Feb 2006
    Messages:
    43,845
    Thanks Received:
    2,710
    Location:
    Staffordshire
    Country:
    United Kingdom
    Yes they will be strong enough.

    Yes they will rot at the bottom.
     
  3. Sponsored Links
  4. JohnD

    JohnD

    Joined:
    15 Nov 2005
    Messages:
    75,009
    Thanks Received:
    4,349
    Location:
    Crossgates, Europe
    Country:
    Cook Islands
    yes, footrot will be a problem, I did something similar, but built concrete pads to 150mm above the paved level, with steel post shoes bolted to the pads. Some of the post shoes include a spacer to give an airgap between the bottom of the post and the shoe. If not, lay some stainless nuts to give a draining layer, and ensure any water that runs down the post into the socket can drain out.

    Soak the bottom of every post in Cuprinol or similar spirit-based preservative before construction.
     
  5. foxhole

    foxhole

    Joined:
    14 Mar 2006
    Messages:
    18,200
    Thanks Received:
    2,085
    Location:
    Kent
    Country:
    United Kingdom
    Should be fine last property I bought and renovated had exactly that, posts were fine been up 10 years and even if they rot a bit it does not collapse as it's secured to the building.A good overhand all round meant the posts rarely got wet.
     
  6. Sponsored Links
  7. tate

    tate

    Joined:
    4 Nov 2012
    Messages:
    23
    Thanks Received:
    0
    Location:
    Essex
    Country:
    United Kingdom
    many thanks for the replies.. i was going to put the posts onto galvanised base anchors which will be concreted in place and bolted to the posts at the bottom as I think they are a good idea keeping the post away for ground level..i have used similar ones on low level decking where I put concrete pads in place and use bolt down types and rested the framing in them.. keeps the joist 25mm from the ground
    just one more question.. has anyone used Paslode Quattro Shanks Exterior screws and recommend them for strength? was thinking of using them for framing..
     
  8. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page