"Fash" wrote in message
ups.com...
back to the first point, of course I will speak to the
Structural engineer I just want to go in armed with suggestions, so far
it's definitely helped me to get what I want in terms of design.

Further practical advice welcomed.

One key point when jacking the middle of any beam is how far does it extend
into the walls. If the walls have been built onto (or settled onto) the
beam entering them at a certain angle then you will need to support the beam
at the ends and remake the wall supports as well.