Box sinking depth on new build

[PJH]

On a new build, prior to the plasters doing their work I need to fit the power/light cables etc., is it normal to fit the cables (+ D channel protectors) and the back boxes first? if so what would normally be allowed for plaster depth?

 

[breezer]

yes it is

depends on plaster depth, i would flush box to wall

 

[ban-all-sheds]

45mm deep plaster - wow.

If you've got the flexibility to do it, future denizens will bless you if you use conduit rather than capping, and nice deep boxes.

 

[PJH]

Thanks, I appreciate the conduit advice. Any idea of what depth to allow for the plastering?

 

[ban-all-sheds]

You could try the building forum, or ask the guy who'll be doing your plastering...

 

[securespark]

It's usually somewhere between 16 -20mm, maybe even more, depending upon unevenness of wall.

Yes, Ban's right. Ask the guy himself!!