Can i use 10mm limestone instead of 20mm for a sub base?

perky416 · 15 Jun 2021

Hi guys.

We are laying a raised putting green in the garden using artificial grass. As it will have a wooden edge going all around we wanted a permeable sub base to avoid rain water pooling.
A 50mm - 75mm layer of 20mm limestone is recommended however everywhere seems to be out of stock or charging the earth.
We can get 10mm limestone no problem.
Is it ok to substitute the 20mm with the 10mm and still achieve adequate drainage?

Thanks

diynot

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Can i use 10mm limestone instead of 20mm for a sub base?

perky416

DIYnot Local

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