UK wiring diagrams domestic

I would normally drill through the centre of the joist.

You can usually make a big enough channel in the plaster and fabric of the wall to do this. I use a good auger to drill most of the hole and then an old one to complete it. That way if the auger strikes the wall fabric and blunts itself then it is not much of a loss.

Notching and plating a joist is usually a last resort.

John

thanks John, thats what I'll do !!

Cheers again,

Hi John, I have noticed a problem, the centres of the joists are too close together to allow acces with a drill !! I take it drilling at an angle is a no go, as compared to drilling at 90. Is the other option to take the cables around the rooms from a 150mm band around the top and corners? or will a right angled drill adaptor do the trick?

cheers

Well I don't like drill adaptors so I use one of these:

Failing that use one of these bits, aim for just above the joist centre and get the drill as close to the floor as possible:

For anybody who doesn't want the expense of a right angled drill, a 9mm hex socket will drive the Screwfix stubby augers, or for really tight situations a 9mm ratchet ring spanner is ideal. Works great in softwood, not tried it in oak though.

Jim A

Buy a cheap[1] spade bit, and hacksaw it down so that it is just a tad over joist thickness. In an odinary mains drill or a cordless drill it normally then fits between the joists.

Cheers - another order to screfix on the way !!!!

Nice idea ! I'll give that a go first, definateley the cheaper option :-)