Description
A coarse, screened aggregate commonly supplied around a 20/40mm or similar nominal grading, with little or no fine material.
A coarse, screened aggregate commonly supplied around a 20/40mm or similar nominal grading, with little or no fine material.
Drainage, soakaways, filter layers, pipe bedding, hardstanding and bulk fill.
'40mm' is a nominal trade description and may represent different declared grading ranges. Confirm before specification.