subbase

Hello, Thank you in advance for all who will take time to support! I am planning to install patio grid in my garden to give some firmness to my heavy clay soil. Now I understood I need to dig around 150mm and put around 70mm hard subbase 40mm of Sharp sand and the 40mm of the grid filled...

I've read and re-read a lot of threads about patio subbases but still can't decide how to proceed with mine. Late last year I dug out an area 50sq.m down roughly 160mm from finished surface level. Working to the 100mm type 1/ 40mm bed / 20 porcelain tile advice that seems quite common. The...

I'm building a 4x4m patio for the back garden, so the load will be light, no vehicules or anything like that. Some of it's going on top of old concrete, some of it I've dug away the top soil and intend to put a sub-base down. The intention is 100mm of sub base (or the pre-existing conrecte) then...

Hi! We were quoted for a floor to be smashed up and replaced with a new floor. The estimate described there being a sub base, sand then DPC, insulation and 65mm fibre screed. We were away the day it was prepped for the screeder, but when we had a peek under the dpc just before the screeder...

Oh not another patio thread... sorry :( I have an area of around 50 sq metres at the bottom of the garden which we want to lay a patio onto. It's the last part of the garden to work on. The ground in that area of the garden is thick with clay. I have had a 1950s roller sit on it for a month...