Combined back boxes

No they don't. Even white plastics can vary a bit.

I would use ordinary metal boxes joined with conduit couplers and male bushes. That will get you even spacing with a small gap between.

Owain

I suspect TLC are playing safe there. The combined back boxes can't be used with some fittings which are larger than the usual 86x86 mm - eg some of the "flat plate screwless" ones. But I have used one with metal ones which are the bog standard size.

Adam posted some time ago a method of dealing with ones which are too big for a dual box.

That link does not work for me Robin.

Richard

I have used these before to link individual boxes but only with white plastic accessories, got to say it does a neat job. I cannot say what difference there might be in the spacings doing it this way or getting a combined box?

Use two single back boxes.

To line them up you just need a piece of wood between the two boxes that is the exact width needed to keep the face plates apart. You need to put the faceplates onto the back boxes put them side by side and measure the gap between the back boxes, cut a piece of wood to match and fit the back boxes into the wall with the wood in place.

Adam

Possibly this method also allows the use of multiple double back boxes (or a mix of doubles and singles) and deeper back boxes to help with wire routing if more than the normal number of wires are to be run through some of the back boxes

try

I can see how the packing piece of wood works especially on an unplastered wall where a temporary piece of wood can be attached to act as a datum whilst installing. However installing the boxes individually with just a packer in between still has the potential for some vertical misalignment.

When putting three double sockets in a line behind our TV unit I used two steel strips pop rivetted to the back of the boxes which if I remember correctly were spaced 15mm apart, worked a treat.

I am just looking for a simple but accurate means of aligning a number of sockets and switches as the walls will be tiled and nothing shows up dodgy or unlevel alignment than tiles! I suppose as someone has pointed out there can be some variation in metal faceplates especially the low profile type. We actually intend to use profiled accessories so it will probably mean checking dimensions and suck it and see. If I have to try out a few back boxes so be it they are not the most expensive items in this rewire.

Richard

Spirit level, fix batten to wall, fit back boxes against batten, remove batten.

IIRC, TLC sell coupling bits to allow two boxes to be fixed at the minimum distance. Easier than using conduit couplers.

One slight issue with those couplers Dave. They only work on fixed lug boxes! You can get them to hold boxes with one fixed and one moving lug by turning one box upside down and using the two fixed lugs but two boxes are your limit.

Richard

Scolmore New Media?

How about these?

This discussion takes me back to sometime near the end of the 1960s. There were some 13A sockets around that looked like chrome, but were in fact plastic with a thin shiny silver coating. It was conductive too.The problems started about a year later when flakes of the silver came off, indeed I got one stuck in my finger. This made the part where the plug fitted look decidedly naff. I guess it was one of those things that seemed like a good idea at the time. You used to find toys with this coating as well and the same bonding issue happened on those. Brian

At the time I had a retired neighbour that lived opposite me that liked to keep himself busy.

He used to make them for me. He passed away some years ago. The sort of bloke who would take your wheelie bin back in whilst you were out at work or take it out if you were working away (without having to ask him).

And the can of chrome spray paint?

I am sure what you linked to would work with some chrome switches and sockets (eg the CLICK DECO stuff without it's plastic trim and some Volex chrome stuff)

The majority of chrome stuff however seems to be wider than the white stuff.

y.

We should all try to be that neighbour whilst we can.