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yeah I did think so. So far I’ve managed to get 300mm down but it seems there is solid rock below that so might just stick with 300mm. Spoke with my uncle who’s a builder and he said it’s plenty. Houses are built on 800m deep foundations so 300 is plenty

I've read a lot online that deck posts should be a minimum of 750mm deep to be below the frost line to prevent movement in freeze/thaw cycles. I'm planning on using 2 bags of postcrete on each post but 750mm deep seems quite overkill to me. Is postcrete affected the same way as normal concrete...

Yeah going to try and get some more, but struggling to find any at a reasonable price!

Shouldnt be breaching any regs, our gardens on a slope so this is going to be as close to the ground as possible to level it out for a hot tub :)

Hey all! I'm planning on building some decking for a hot tub we have as our garden is extremely sloped (yay new builds). We have a Lazy Spa Paris which comes in at just over 1.2 tonnes when filled (without people), so I'm planning on it to support 2 tonnes. I'm starting the decking out to be...