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turned out to be 100mm out stevie888. hope that helps you.

I was meaning to crush the gabion and use it like MOT to level the ground works, and then use the rest to mi with some sand and cement in a mini mix to make concrete and use that as an oversite layer. Its not structural and wont be walked on. its block and beam above it.

pea gravel helps to distribute the downward load around the pipe. science stuff

jj4091, I was thinking i could maybe use it to make up the concrete for the over-site, and maybe to fill my hollow blocks. im thinking of hiring a crusher for a day.

Thanks everyone, it was so bad we ended up with the structural engineer back round and put a levelling up layer in. some places were 150mm deep, others 50mm deep. quite a lot to loose over three courses of blocks

Hi All. Please be kind. I'm in the early stages of an extension and our first few courses of block work have gone in. We've got alot of space either side of the block work that needs backfilling. We have an awful lot (about 32t) of sandstone Gabion rock. not limestone gabion. its a...

Hi All, We have had our foundations piled and poured. The concrete height however is around 40mm difference in height from the highest point to the lowest point. is it ok for the starter mortar layer to range from the standard 10mm thick to up to 50mm thick over quite large runs. I know our...