Hi,
I have recently started a self build extension and had originally costed in for a single steel (254UC) across the knockthrough / opening. Our structural engineer has however told us that due to the size of the opening (6.3m) and the quality of the brickwork on either side (terraced house) he would recommend a box frame of 254 UC top and bottom (107kg) and verticles of 152 UC.
Not wanting to bring down the whole house (and the neighbours) we will of course be getting builders in to do this work but what I wanted to know is roughly how much i should budget for this work.
Thanks
I have recently started a self build extension and had originally costed in for a single steel (254UC) across the knockthrough / opening. Our structural engineer has however told us that due to the size of the opening (6.3m) and the quality of the brickwork on either side (terraced house) he would recommend a box frame of 254 UC top and bottom (107kg) and verticles of 152 UC.
Not wanting to bring down the whole house (and the neighbours) we will of course be getting builders in to do this work but what I wanted to know is roughly how much i should budget for this work.
Thanks