Electrical – Are all rectangular outlets, switches, and plates the same dimensions and interchangeable

electricalreceptacleswitch

Do I need to make sure my switches, plates, and outlets are from the same manufacturer or can I mix and match? I'm referring to the rectangular decora-style and wasn't sure if there'd be slight differences in size between brands.

Some examples:

Are these all the same dimensions?

Best Answer

Yes, all "Decora" style devices share the same cover plate opening, within a couple of thousandths of an inch (+/-.005" or so). GFCI receptacles also fit this description, as well as many dimmers, timers and "smart switches".

For instance the opening on a Hubbell plate is 1.312"x2.625", while these Leviton are slightly different, but all within a reasonable spec to be called the same.

3 gang Decora cover plate drawing single gang Decora cover plate drawing