I understand the reasons for the expansion gap in a floating floor but is
10mm all round not a bit excessive? Can the floor really expand up to 20mm
in all directions?

Reason I'm asking, I'm in the process of laying a floor and have left the
10mm round the perimeter of the room (as I removed the skirting and can
easily hide the gap) but am now up against the breakfast bar and am not too
keen on a big gap and don't want to put skirting round it.

Also due to bad planning I've been left with a small (20mm) L section of
laminate to fit which only leaves a few mm expansion. There is no way I can
cut it smaller to leave the proper 10mm gap.

Cheers

Steven.