Rsj

[Craig1234#]

Got an existing opening going into a new single story extension that is 2900mm wide, there is a steel on the inside skin, just a flat metal bar on the outside skin, I was going to swap the outside skin metal bar for a steel at 3.2m 180mmx102, is a structural engineer needed for this as going through planning permission? As surely anything is better than what is actually there at the minute,
See pic below

Cheers

 

[Dereekoo]

If you are removing the support from the door/ window (whatever that may be) then I should imagine SE calcs will be required unless the original support is on record as being adequate. Best ask BC.