Why do all 25mm back boxes come with round knock outs ?
I want my sockets flush so I will need to chop out the wall for the back box but i don't want to chop out the wall for 20mm round conduit so i'm going to use oval conduit so that I can bury it in the plaster.
wouldn't it make sense to make 25 mm back boxes with oval knock outs ?
I want my sockets flush so I will need to chop out the wall for the back box but i don't want to chop out the wall for 20mm round conduit so i'm going to use oval conduit so that I can bury it in the plaster.
wouldn't it make sense to make 25 mm back boxes with oval knock outs ?