Joist Repair

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Would timber plugs sealed in with resin be a suitable repair for this joist? We could thread the cable through just one hole ...the remaining four would be redundant. Replacing it would be quite complex so we would like to avoid that.
 

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Repair not needed. Unless there are many more holes than you have in your picture.
This is more of a worry…..
[GALLERY=media, 5375]Untitled by Taylortwocities posted 12 Oct 2008 at 11:01 AM[/GALLERY]

PS plugging holes with resin would not be effective. Strength in wood is generally through the bonding together of the wood fibres. That’s what allows trees to grow vertically!. A resin plug, under strain would just rotate in the hole.
 
It looks like it's close to a wall, so unlikely to be walked over or subject to a heavy load. Based on that I'd leave it alone.

Your other option is to glue and screw another joist to it - although it would only be able to sit under the pipes, but might still add strength. From the pic it looks like you've only cut a small hole in the floorboards so maybe not an option as it won't feed through.

Only other option is a bit of steel strip, say 100mm (or whatever space you have bet underside of pipe and bot of joist) x 6mm x 500mm long- it would slide in flat turn upright once in ceiling void.....and screw on.


Is it near the middle of the joist or close to an end?

I'm guessing the plumber cut the notch after the electrician....wot a muppet
 
It's near the end of the joist. The consumer unit used to be the other side so over the years it has seen a lot of refits...
 
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