In article ,
Chris Bacon wrote:
If it's only holding up a floor - and not any other brickwork and/or
supporting the roof - it will probably be ok. After all, the other end
of the RSJ will probably only be supported by the inner leaf of the
cavity wall, which is - in effect - a single brick wall. You don't get
much support from a cavity!

He could always build up a pier for extra support.

Yes - but this would look unsightly. Best get a structural engineer in.
The BCO will probably insist you do anyway.

--
*Laugh alone and the world thinks you're an idiot.

Dave Plowman London SW
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