On Jan 22, 11:22*pm, Huge wrote:
I spent several years working under a couple of tonnes of manuals on Spur
shelving hung off a plasterboard wall.

Same here. If you can spread the load (Spur supports do that very
effectively) and ensure it's mostly downwards rather than outwards,
plasterboard will typically support a huge weight. At your own risk,
of course.

Richard.
http://www.rtrussell.co.uk/