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MOT Type 3 stone is a permeable crushed aggregate commonly used as a sub-base material in driveway construction. It is designed specifically for projects where water drainage is important, making it ideal for resin bound driveways and other permeable surfacing systems.
Unlike traditional compacted stone bases, MOT Type 3 allows water to pass through the structure while still providing strong load-bearing support.
This combination of strength and permeability makes it a popular choice for modern driveway installations.
What MOT type 3 stone is made of
MOT Type 3 is a graded crushed stone aggregate that typically ranges from larger stones down to smaller particles. The grading is designed to create a stable yet free-draining structure when compacted.
The material is usually produced from crushed granite or limestone. Because it contains fewer fine particles than other aggregates, water can move through the base more easily.
This open structure allows the driveway system to maintain permeability from the surface layer down through the base.
Why MOT type 3 is used for resin driveways
Resin bound driveways rely on permeable construction to function correctly. MOT Type 3 provides the structural strength needed to support vehicles while still allowing water to infiltrate the ground.
Using a non-permeable base can block drainage and cause water to accumulate beneath the surface, which can weaken the driveway over time.
By installing a properly compacted MOT Type 3 sub-base, contractors ensure that the entire driveway system supports natural water drainage.
How we use MOT type 3 stone
Resin Driveway Ireland installs MOT Type 3 stone as part of our groundwork process when constructing permeable resin driveways. The material is laid in controlled layers and compacted to create a stable and level foundation.
We carefully prepare the base depth and compaction to match site conditions and expected vehicle loads. This ensures the driveway maintains both structural strength and effective drainage performance.
Looking for a permeable driveway system built on the right foundation?
