Apologies, over attention to detail :)

The boxes are basically the same, buy the cheapest & move on to the next job on the to do list 😉

I found superlec the cheapest for back boxes.

Some have different knockout locations/sizes. Probably doesn't matter in most use cases but worth checking if you have specific needs.

>>> The boxes are basically the same

Yeah, told you I was being a .....

What about mini grid stuff? Anyone have opinions on those?

5 hours ago, Alan Ambrose said:

What about mini grid stuff? Anyone have opinions on those?

If someone fitted those on display in my house, they’d get 50 lashes, 5 mins to recover, and then 75 more. Yuk.

I hide groups of switches in cupboards etc, when doing kitchens, or even in an adjacent room, as reducing the number of such wall-warts in a domestic dwelling is high up my list.

15 hours ago, Alan Ambrose said:

mini grid

So dumb question what is a mini grid? Why do you you need them?

14 minutes ago, JohnMo said:

So dumb question what is a mini grid? Why do you you need them?

@Alan Ambrose posted an image of one above. The back box is a grid formation available in many different variants, but that all take the single switches you can see in the image. Often used for when you need more than four switches (as that's generally the 2G limit). They also come laser engraved with lettering for things like DISHWASHER, TUMBLE DRYER, etc. making it easy to identify individual switches you might not use often.

35 minutes ago, garrymartin said:

@Alan Ambrose posted an image of one above. The back box is a grid formation available in many different variants, but that all take the single switches you can see in the image. Often used for when you need more than four switches (as that's generally the 2G limit). They also come laser engraved with lettering for things like DISHWASHER, TUMBLE DRYER, etc. making it easy to identify individual switches you might not use often.

They are also often a pig to wire. LOTS of cables in the back box, probably fed from multiple circuits, some quite large cables. Each row of switches are on one plate and some designs require you to pull that whole plate of 4 switches forward to get to the terminals.

I hate them and would never fit them to my own house.

the thought of getting 10mm, 6mm and plenty of 2.5mm into the back of one of those grids put me right off. A row of hidden switched isolators in a cupboard for me. Turned them on and never looked at them since.

I've got one of them mini grid setups... Next to a door on an outside wall leading to a kitchen diner, the kitchen has two banks of lights as does the diner, then I've got control of the PIR's on the back of the house. I was being kind to the sparky, nice tall backbox to play with rather than a 6 switch 2 gang setup.

But why do you need all these switches? As I said earlier we have one switch for the whole kitchen diner and another for the cabinets and lights under them.

You just make life way more complex than it needs to be.

2 hours ago, JohnMo said:

But why do you need all these switches? As I said earlier we have one switch for the whole kitchen diner and another for the cabinets and lights under them.

Not just light switches. These grid switches are just a frame into which you clip in any type of switch you want.

You are supposed to have an accessible isolating switch for every fixed appliance, like washing machine, dishwasher, fridge / freezer, ovens etc.

The old way was one switch above the worktop immediately above the appliance. Another way is switches in cupboards next to appliance (my preferred) but some like to put them all together in once place with one of these grid switches.