On 9 Mar 2004 09:13:10 -0800, John wrote:

The plaster is covered with lovely polystyrene tiles and it's
bagging a little.

Poly tiles in an enclosed space, ugh, rip them out for sure, which
will probably bring most of the plaster with them...

The areas only about 3m x 1m.

Long by high? Ideally you need support at about 18" centers so that 1m
divided in two will do. I'd bung in a couple of verticals at 3'
intervals just for good measure.

--
Cheers
Dave. pam is missing e-mail