plasterboard fixings only for a tv mount? General problems, solutions, information and advice on fixing to walls of all kinds

[stepper]

hi - I am looking to secure a LCD tv mount (tv is about 35kg) to a plasterboard wall - I can't find any studs and having drilled through the wall the plasterboard is about 1 in thick, and there is at least a 15cm gap to the actual wall, I can feel insulation if I push a pencil through the hole.

the lcd tv mount can be fixed at 8-10 points on the wall - distributing the weight a bit, so my question is - would 8-10 redidrive/spring toggles be enough to hold that kind of weight?

if not any other ideas/solutions apart from cutting the plasterboard out and putting in bits of wood behind the plasterboard?

thanks ....

[chris_on_tour2002]

with that many fixing points it would probably be ok (say 5kg per fixing) however they will be in close proximity to one another. personally i wouldnt risk it. i would put in noggins or use extra long fixings to go into the masonry. perhaps a threaded stud that you can cut to any length then anchor resin into the masonry.