In article ,
larry wrote:
Hi hope someone can help need to extend the box on a light switch so as
to be able to use a dimmer switch in an existing shallow box. back to
back with another switch so can not sink a deeper box

MK do plastic frames for this purpose. The frame can be fixed to the box
in the normal way, and the dimmer to the frame, again in the normal way.
If the dimmer needs horizontal screws rather than vertical, you can drill
out the threads in the frame and use long screws.

Haven't seen them in the sheds - and I don't think TLC stock them. Find a
wholesaler with an MK catalogue and look them up.

--
*On the other hand, you have different fingers.

Dave Plowman London SW
To e-mail, change noise into sound.