Lintels?

Discussion in 'Builders' Talk' started by Andy O'Brien, Oct 7, 2021.

  1. Andy O'Brien

    Andy O'Brien New Member

    Hi,

    I'm building a one story outbuilding - using thermocrete blocks (440x215x215mm).
    The top of the french door (1800mm wide) and two windows(1200mm wide each) will be in the top layer of blocks - i.e. there is no 'wall' weight to support - just the lintel itself then the wall plate/roof
    Flat roof will be (assuming I win the lottery) epdm on osb/ply on 2x8 joists

    I was looking at the prestressed concrete lintels - but presume would need two on each opening to cover the 215mm wall width?

    Any recommendations/suggestions as to why this is wrong/anything better welcome

    Cheers
    Andy
     
  2. stevie22

    stevie22 Screwfix Select

    They come in different widths and depths.
     
  3. Andy O'Brien

    Andy O'Brien New Member

    Sure - the widest I've seen though is 150 - so I assumed I'd be better off with two 100's
     
  4. Severntrent

    Severntrent Screwfix Select

    Screenshot_20211007-182516.png
     
    stuart44 likes this.
  5. Andy O'Brien

    Andy O'Brien New Member

    Thanks - hadn't spotted them - however would cost nearly 5 times as much for one of them as opposed to two 100mm wide lintels!
     
  6. Abrickie

    Abrickie Screwfix Select

    Just a thought but if your wall plate is 100mm wide as is normal, what’s the other lintel for ?
     
  7. Andy O'Brien

    Andy O'Brien New Member

    Don't forget to take into account that I don't know what I'm doing!
    OK - first off I didn't know wall plates are normally 100mm wide?
    I basically thought two lintels on the outsides of the block with an air gap in between would:
    Give me an 'inside' and 'outside' wall to use
    Spread the load over the blocks as much as possible
    Give me some insulation because of the air gap
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice