Hire the best Gazebo Expert

pergola post heights for pitch

Results 1 to 6 of 6
  1. #1
    Senior Member
    Join Date
    Nov 2016
    Location
    Brisbane
    Posts
    114

    Default pergola post heights for pitch

    hey all so im going to give building my pergola a crack this month. its a fly over design and just wondering with the pitch i need 5į per metre. the roof itself is 5.5m projection so i understand thats 192mm fall. however theres 400mm overhang at the back from beam and 600mm overhang at the front from the beam. so question is whatever height my roof extenda brackets are do i subtract 192mm from that datum for my front post heights? if that makes sense

  2. #2
    Seasoned DIY droog's Avatar
    Join Date
    Sep 2005
    Location
    Bendigo
    Age
    59
    Posts
    3,303

    Default

    Depends on the reference points.
    Is the 192mm is based on 5.5m and are your support point 5.5m? Ie between your extenda brackets and the front post.

    If the 5.5m is the length of the roof then to work out the difference in support locations is :
    5500 / 192 =X
    Distance between extenda and from post x X

    Although unless there is significant difference between the roof length and support locations it is only going to be fractions of a degree.

    The blocklayer website may assist.
    https://www.blocklayer.com/

  3. #3
    Senior Member
    Join Date
    Nov 2016
    Location
    Brisbane
    Posts
    114

    Default

    hey mate yeah based in the 5.5 roof. so distance from extendas to posts would be 4.5. taking out overhangs

  4. #4
    Senior Member
    Join Date
    Nov 2016
    Location
    Brisbane
    Posts
    114

    Default

    so 157mm around there should be fine?

  5. #5
    Seasoned DIY droog's Avatar
    Join Date
    Sep 2005
    Location
    Bendigo
    Age
    59
    Posts
    3,303

    Default

    Sorry got it a&$# about



    192 / 5500 = 0.035
    0.035 x 4500 = 157 mm

    If the roof length is 5.5m and you want 192 mm fall over the roof, and your support points for the roof are 4.5m apart then the height difference between the support point will need to be 157mm.

  6. #6
    Senior Member
    Join Date
    Nov 2016
    Location
    Brisbane
    Posts
    114

    Default

    yes thank you clear things up sometimes i overthink haha

Similar Threads

  1. New pergola and deck. Which post supports?
    By Spottiswoode in forum Pergolas, Gazebos, Strombellas & Rotundas
    Replies: 1
    Last Post: 26th Nov 2019, 08:13 PM
  2. Pergola Post Holes
    By jcoggers in forum Pergolas, Gazebos, Strombellas & Rotundas
    Replies: 4
    Last Post: 28th Feb 2019, 03:33 PM
  3. Pergola Post Attachments
    By Craigoss in forum Pergolas, Gazebos, Strombellas & Rotundas
    Replies: 14
    Last Post: 30th Jul 2015, 10:39 AM
  4. How to install Pergola post
    By metamorphosis in forum Pergolas, Gazebos, Strombellas & Rotundas
    Replies: 4
    Last Post: 14th Oct 2011, 08:13 PM
  5. Pergola post strength
    By playpen in forum Landscaping, Gardening & Outdoors
    Replies: 2
    Last Post: 13th Jan 2007, 11:47 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •