I'm looking to replace an existing metal 30mm single gang back box with a dual gang one, to accommodate a LightwaveRF light switch I'm fitting.
It has to be at least 30mm to accommodate the LightwaveRF modules, and I don't wish to chisel out the existing cavity to accommodate a 35mm deep box, so ideally it'll be 30mm exactly.
Why are these so difficult to find? I'm seeing plenty of 25mm and 35mm boxes but nothing at exactly 30mm.
It has to be at least 30mm to accommodate the LightwaveRF modules, and I don't wish to chisel out the existing cavity to accommodate a 35mm deep box, so ideally it'll be 30mm exactly.
Why are these so difficult to find? I'm seeing plenty of 25mm and 35mm boxes but nothing at exactly 30mm.