My 1938 house has 75mm breeze/cinder block internal walls and I need to chase in a metal box for the 10mm t&e cable shower switch. Could I use a 35mm box or would I need a 47mm box.
Chasing Electric Cables into Breeze-block Wall
- Thread starter OneAvocado
- Start date
Sponsored Links
- Joined
- 11 Jan 2004
- Messages
- 43,851
- Reaction score
- 2,867
- Country
- Joined
- 26 Aug 2016
- Messages
- 6,833
- Reaction score
- 1,011
- Country
Ours are 2 inch thick blocks on most internal walls but it's been wet plastered with lime plus a couple of skims on top, so I could easily chase cables into the plaster. The boxes I just used a Scutch chisel once I drilled the edges, best thing I bought and no damage next door bedroom etc.
I was extremely nervous being a novice, but the only wall I had issues was a small area of cavity wall under the bay, one of the inside bricks came loose when chiseling.
The same happened on the outside when I was clearing the old paint, a loose brick, followed by another, then...
I was extremely nervous being a novice, but the only wall I had issues was a small area of cavity wall under the bay, one of the inside bricks came loose when chiseling.
The same happened on the outside when I was clearing the old paint, a loose brick, followed by another, then...
Oops.
Mortar often isn't very strong, and a lot of walls are really just a stack of bricks relying on the weight of what's above to keep them solid. So when you go bashing into it with a chisel, where there isn't much weight on it, ...
Mortar often isn't very strong, and a lot of walls are really just a stack of bricks relying on the weight of what's above to keep them solid. So when you go bashing into it with a chisel, where there isn't much weight on it, ...
Sponsored Links
- Joined
- 26 Aug 2016
- Messages
- 6,833
- Reaction score
- 1,011
- Country
I thought there was weight on it, that wooden post is holding up the upstairs bay and part of the roof!
But I suspect the ground has shifted as there's little on the way of foundations on our house.
But I suspect the ground has shifted as there's little on the way of foundations on our house.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
