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What length timber?

  • 27-10-2014 11:48am
    #1
    specialized105
    Registered Users, Registered Users 2 Posts: 143 ✭✭


    18.5ft x 18.5 ft garage , putting an apex roof on it what size timbers do i need for a 35 degree ? I think qty 34 x 14 foot length -6"x2"any advise???


Comments

  • #2
    sky6
    Registered Users, Registered Users 2 Posts: 1,444 ✭✭✭sky6


    Roof Framing Calculators - Hip + Gable Roof Framing - Online
    www.blocklayer.com/Roof/

    This should work it all out for you with cuts etc.
    You might get away with 100 or 125 x 44 depending on what your covering it with.


  • #3
    specialized105
    Registered Users, Registered Users 2 Posts: 143 ✭✭specialized105


    sky6 wrote: »
    Roof Framing Calculators - Hip + Gable Roof Framing - Online
    www.blocklayer.com/Roof/

    This should work it all out for you with cuts etc.
    You might get away with 100 or 125 x 44 depending on what your covering it with.

    Hi thanks linky not working , fibre cement
    Slate going on it to match my house


  • #4
    chris445
    Registered Users, Registered Users 2 Posts: 239 ✭✭chris445


    Cos 35=9.25 / TTL

    This means that the theoretical true length(TTL) = 9.25 divided by Cos 35

    TTL is about 10.25 foot so 14ft lengths should be fine once the eaves are added on.
    34 lengths should be plenty for 400mm centre rafters but you will prob need more for ceiling joists/collar ties.


  • #5
    specialized105
    Registered Users, Registered Users 2 Posts: 143 ✭✭specialized105


    thanks lads


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