Thread: Hole in Joist
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The Natural Philosopher[_2_] The Natural Philosopher[_2_] is offline
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Default Hole in Joist

On 26/06/2019 18:17, DerbyBorn wrote:
I need to bore a hole in a joist to take a shower waste. Reading the regs
tells me that in a 20cm Joist the max hole can be 32mm

I need to pass a pipe of 42mm diameter!

The joist is right next to a wall at the outer edge of the house - load on
it will never be high.

Pragmatically - would you go ahead and bore the hole?

yes. I might add another joist alongside


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