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  • FIRST POST
    • chris_aaaaa
    • By chris_aaaaa 16th Oct 16, 12:30 AM
    • 117Posts
    • 22Thanks
    chris_aaaaa
    RSJ (UB) estimation
    • #1
    • 16th Oct 16, 12:30 AM
    RSJ (UB) estimation 16th Oct 16 at 12:30 AM
    Before embarrassing myself getting builders etc, is there a rule of thumb for beam installation. Along the lines of 1500 per m2 for an extension.

    I want to extend out the back of my house, and support the upstairs back wall of the house. The span would be about 10m
Page 1
    • Doozergirl
    • By Doozergirl 16th Oct 16, 9:12 AM
    • 22,240 Posts
    • 63,075 Thanks
    Doozergirl
    • #2
    • 16th Oct 16, 9:12 AM
    • #2
    • 16th Oct 16, 9:12 AM
    You won't practically get an RSJ to span 10 metres. It would be far too deep and it would be interesting to see anyone try to lift it into place without a crane!

    There isn't a guide per metre. The cost would be pretty much the same for most domestic knock-throughs as the main costs are in labour and the sizes don't vary too much.

    I would definitely expect that you'll need two knock-throughs unless you have lottery win type funds available to open the full space. That cost would be exponentially more than than the average.
    Everything that is supposed to be in heaven is already here on earth.
    • Kiran
    • By Kiran 16th Oct 16, 9:41 AM
    • 1,043 Posts
    • 459 Thanks
    Kiran
    • #3
    • 16th Oct 16, 9:41 AM
    • #3
    • 16th Oct 16, 9:41 AM
    Definitely agree with the above. You'll need to look at support mid span to come up with a cost effective solution.
    Some people don't exaggerate........... They just remember big!
    • Chanes
    • By Chanes 16th Oct 16, 2:06 PM
    • 602 Posts
    • 344 Thanks
    Chanes
    • #4
    • 16th Oct 16, 2:06 PM
    • #4
    • 16th Oct 16, 2:06 PM
    ... unless you have lottery win type funds available to open the full space. That cost would be exponentially more than than the average.
    Originally posted by Doozergirl
    It one of those situations when that money would look fantastic on a house though.
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