Hi all.
I have half a plan to open up a wall between the lounge and dining room
to install french doors or similair.
Some of you may remember how I once descibed my ground level floating
floors being supported on 3" deep joists with a sleeper wall.
So what precautions should I use to avoid buggering up the floors if I
use props to support the wall before I install a lintel?

I'm not sure if the wall is single or double brick.
The wall is shown here as a - b www.tally-mo.com

Thanks.

Arthur