On 02/10/2010 22:22, andy wrote:
Has anyone had the same problem as me with toggle fixings for
plasterboard ..... the toggle springs out at the back of board to lie
alongside the screw thread i.e. the two wings don't open out equally
so that when you tighten the screw the fixing is pulled back through
the hole !
The fixings were bought from Wickes so I don't know if it's a quality
issue?
I want suitable fixings for a pretty heavy bathroom mirror and
unfortunately there are no studs in the right place ....

I fixed a 4ft wide x 3ft high mirror in similar circumstances by fixing
a 4ft chromed metal, unequal U shaped extrusion to the vertical
studding, it supported the mirror along it's bottom edge thereby taking
the weight of the mirror.
One could do the same using a wood batten of appropriate size, so that
it spans the vertical studding into which you screw into. The top
fixings of the mirror will be under considerably less strain as the
weight of the mirror would rest on the batten. It's also easier to lift
and present the mirror to the wall as you can rest it on the batten
while arranging your top fixings.
Hope this helps.
Don