Question: what is type 1 sub base?
Answer: MOT Type 1 Sub-Base. Mot Type 1 limestone is sized from 40mm down to dust and is mainly used as a bulk fill, a levelling material and as a sub-base for paths, ponds, drives, sheds, patios and construction jobs. When levelled out a weed membrane can be added and then topped off with one of our more attractive gravels.