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Building Aggregates
MOT Type 1

MOT Type 1


Also known as GSB TYPE 1 or MOT TYPE 1 - this is a granular material with a maximum permitted top size of 63mm, graded down to dust.


Type 1 must be of a crushed nature to provide a stable sub-base for road surfaces and pathways. The mixture of solids and fines ensures minimal voids in the sub-base material when compacted, giving a strong load bearing layer with a suitably flat surface. Both primary and recycled materials can be used to make up a MOT standard sub-base.

MOT Type 3
  • Limestone
  • Zero fines
  • 40mm>