Lintel overlapping a return

[Rahz]

Hi all,

I am trying to maximise the width of an opening to accommodate a new folding sliding door. The lintels require 150mm minimum bearing on each side. The internal width of the room is 3190mm so I believe the maximum opening should be 2890mm. The next lintel up is 3300mm which would cause some overlap in line with the internal skin (Thermalite) of a cavity wall return on both sides (by 55mm). Bricks used on the outside skin.

Would that be ok? After all, the minimum bearing size if exceeded by 55mm.

Thanks

 

[Static]

Thats quite an opening size for a standard lintel.. unless its not carrying any load above you may want to relook at the design

 

[freddiemercurystwin]

Returns should be a minimum of 665 before an SE needs to be involved BTW.

Untitled

• freddiemercurystwin
• 15 Mar 2011
• 1

 

[geraint]

Returns should be a minimum of 665 before an SE needs to be involved BTW.

Untitled

• freddiemercurystwin
• 15 Mar 2011
• 1

is that there height....

 

[andy03]

the above is in plan. its from part a of the building regs

you need building control to sign this off, they will need structural calcs for the lintlel.

your structural engineer will also advise as to the size of return or brick pier required