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Lean-to roof

  • 23-03-2021 8:14pm
    #1
    phil21_06
    Registered Users, Registered Users 2 Posts: 20 ✭


    Looking to build a lean-to open roof veranda. I have a run of 4 metres from house to posts and need a 5deg pitch. Have 2 6x6 posts and will be using a 6x2 attached to House under original roof eaves at height of 2.3m. I only have 8 inchs between soffit/eves and the door trim and want to be able to add a battan in the future for a light poly roof so max I can use is 6inch timber. Dont want roof to low at the end as shed roof there hence 5deg pitch. Thinking of using 6.3 rafters. Would these be sufficient for a long run of 4 metres. Thanks


Comments

  • #2
    Fine Cheers
    Registered Users, Registered Users 2 Posts: 559 ✭✭✭Fine Cheers


    Similar post on the DIY forum regarding sizing timbers for a pergola.
    I guess the best guide is span tables for flat roofs see attached, especially as you plan to fit a poly roof later.
    What centres were you thinking off ?


  • #3
    phil21_06
    Registered Users, Registered Users 2 Posts: 20 ✭phil21_06


    DIY KING wrote: »
    Similar post on the DIY forum regarding sizing timbers for a pergola.
    I guess the best guide is span tables for flat roofs see attached, especially as you plan to fit a poly roof later.
    What centres were you thinking off ?

    Thanks. I think I will be safe as I am just under 4m and and that's before i take into account 6x2 on house and 6x3 being fixed in the 6x6 post. I was planning on 450mm centres


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