Metalclad sockets

All faceplates overlap the wall sockets

Not necessarily, I have seen some that are edge flush.....

How about:

Knightsbridge do some with USB and minimal faceplate overhang:

The Knightsbridge ones appear to have a significant-enough overhang the back boxes wouldn't butt together

Owain

I don't know of any that are flush sided, but if you have only a small overhang, then how about just an open grommet on each box, butted up together, to space them a little?

When I was researching sockets for my garage, I found only MK produced flush fitting sockets and back boxes certainly for the most commonly available.

Richard

Yes that has been true for many years, MK used to do more than double sockets though with the back boxes to match, and there was of course just the one connection, and each had its own switch. It was a very long time ago though, so whether they still do them I have no idea. Brian

I personally would not give houseroom to socket mounted USB PSU sockets for two reasons.1 most create interference as they are el cheapo Chinese modules and 2 everyone is going USBC on power connectors, which means adaptor cables. Brian

But even USB-C are nearly all only USB-C at the 'client' end., they're still the same old USB-A at the power end.

And mains sockets with USB-C at the power end are available.

Owain

All metal clad I've seen have the face plates wrapped round the back box. Can't see any other way of doing it. I used conduit couplers and bushes to link them together in the workshop. An extra inch or so apart being neither here nor there.

I would have said that, but the MK K2946ALM do *look* flush to the sides in most photos

And the back boxes appear to have a lip to allow that.

Owain

Buy a couple from SF/TS and if they don't suit they're easy to return?

And have long been. I rescued a 30-odd of their forebears (but with brass finishing to the sockets) from a skip at work when there was major refurbishment in the 90's. Fitted the last of them for a neighbour only a year or 2 back.