New house rewire

[JohnMo]

On 03/05/2026 at 11:10, Pappa said:

We like to have washer dryer in bathroom.

I would hate that, that's what a utility room is for. But like sticking your shower in the utility - you just wouldn't. But everyone to their own.

 

 

[Spinny]

On the outdoor stuff you haven't said what you have to light front and back - is the garden small or large ? patio ? long drive ? outbuilding ? etc.

 

One thing with lighting, whilst yes it is the standard thing to have a circuit for each floor, sometimes having a light on a different circuit can be helpful if the circuit trips. Our porch light and understairs cupboard light is on a separate circuit to the downstairs lighting. If the downstairs circuit trips, you still get some light coming in from the porch, and you have light where the consumer unit is.

 

[Great_scot_selfbuild]

On 03/05/2026 at 13:15, -rick- said:

I'm not an electrician but something I've seen elsewhere is to not install any rings. Make them all radials. Might be a bit more expensive in wiring (4mm vs 2.5mm) or from having 2x20A radials vs 1x32A ring but makes testing and future changes simple.

By coincidence I came across this too, and then found this useful (clear) YouTube channel which explained how the 2.5mm ring came about from a post-war think tank assessment of how large scale housing could be done whilst limiting the amount of copper needed (well I found it interesting…).

 

This video explained the ring vs radial importance: