1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

What size steel do i need

Discussion in 'Building' started by plugy, 26 Dec 2019.

  1. plugy

    plugy

    Joined:
    30 Jan 2014
    Messages:
    37
    Thanks Received:
    0
    Location:
    Cheshire
    Country:
    United Kingdom
    Ok, guys here is quite a specific question and know I maybe should get an engineer to calculate my steel, however, thought would try as there is there some great help & info available here. What we are trying to achieve is to take most of the back of the house, to extend our kitchen.
    Looking from the outside we hope the steel will sit on the internal wall negating the need for a pillar so the right wall will carry straight through into the new build. The other end of the steel has approximately 600mm wall space to rest, the wall is unable to carry through. The span is approximately 4.5 meters. Approximately 3 meters of brickwork above broken up by two windows about 4m2 each. Internally the floor joists do not run into the wall so there is a bonus.
    The roof is a Perlin roof with the Perlin setting back from the eves around 1.5m.
    It is a 50mm cavity brickwork front and back, no blocks.
    Any advice, what's more, cost-effective getting an engineer with calculations or overestimating the steel guaranteeing it will be sufficient.
    Cheers, all.
     
  2. securespark

    securespark

    Joined:
    11 Jan 2004
    Messages:
    35,442
    Thanks Received:
    1,150
    Country:
    United Kingdom
    What will be supporting the outer leaf?

    Do you have some piccies?
     
  3. Sponsored Links
  4. Notch7

    Notch7

    Joined:
    15 Sep 2017
    Messages:
    21,039
    Thanks Received:
    1,450
    Location:
    S. Uplands
    Country:
    United Kingdom
    Building regulations will require structural engineers calculations.
    In any case there is more involved than just the load; lateral stability also needs to be considered along with existing foundations.

    There are ways in which an engineer can design steels to sit on a wall at 90 without a pier....I guess you want a run of units down that wall.
     
  5. gasbanni

    gasbanni

    Joined:
    7 Jan 2007
    Messages:
    8,440
    Thanks Received:
    975
    Country:
    United Kingdom
    You absolutely need a structural engineer to draw up the spec and carry out the calculations.

    That way you will not have any issues with building control, your insurers or anyone else.

    No alternative arguments have any validity.
     
  6. Sponsored Links
  7. Ian H

    Ian H

    Joined:
    14 Sep 2010
    Messages:
    6,695
    Thanks Received:
    781
    Location:
    Rochdale
    Country:
    United Kingdom
    I used an online calculator, it was cheap but my Council didn’t accept the calculations.

    I ended up paying a Structural Engineer £250 to calculate 5 beams, best thing was he slightly altered the design of my loft to remove the old hips that the ‘architectural technician’ had left on the drawing.

    Best money I spent on the project.
     
  8. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page