I
iDIY
Hi Guys,
I have done all the usual searches but cant find the answer to this, so i'm asking here
I have planning permission in place and an independent BCO lined up. I have a structural engineer lined up to do calculations but at present I am just wanting to price up a few major components.
So, I will have a 6m beam, spanning 5.8m supported each end on a padstone set into the inner leaf. The RSJ will support floor joists across its span but at each end of the span it will also support a 440mm return cavity wall (2.2m high)
Obviously I need to price an rsj with a top plate but my question is this and seems simple enough that I should know... If the short section of cavity wall at each end of the span are 290mm wide (100mm Block / 90mm Cavity / 100mm Block) then how wide should the top plate be? I seem to think it should be narrower than the wall but i'm not sure.
I have done all the usual searches but cant find the answer to this, so i'm asking here
I have planning permission in place and an independent BCO lined up. I have a structural engineer lined up to do calculations but at present I am just wanting to price up a few major components.
So, I will have a 6m beam, spanning 5.8m supported each end on a padstone set into the inner leaf. The RSJ will support floor joists across its span but at each end of the span it will also support a 440mm return cavity wall (2.2m high)
Obviously I need to price an rsj with a top plate but my question is this and seems simple enough that I should know... If the short section of cavity wall at each end of the span are 290mm wide (100mm Block / 90mm Cavity / 100mm Block) then how wide should the top plate be? I seem to think it should be narrower than the wall but i'm not sure.