If you have three standard switches or dimmers in the box, it has to be a
three gang box. If you want to keep two switches or dimmers in the box, you
need to reduce it to two gang. Only if the box is the type with a removable
reducing cover on it, can you change from three gang to two gang leaving the
box in the wall. Most likely it is not and you must remove the box
completely and replace it
"Paul Duggan" wrote in message
om...
I have a double gang wall box with a three switch plate on it. One of
those switches is now redundant and I want to replace the switches
with a single-width plate with two dimmers mounted on it. I could hack
the old box out of the wall and put a single-gang one in to mount the
new plate on it, but I want to avoid that if I can. I've been told
that some sort of adapter/converter exists to turn your double gang
box into a single gang one but I've had no lukc tracking one down so
far. Can anyone confirm if these things exist, and if so what they're
called so I might have better luck finding one?
Thanks.