TYPE 4 MOT SUB BASE LOOSE LOAD Per Tonne

MOT TYPE 4 SUB-BASE – FREE DRAINING AGGREGATE MOT Type 4 Sub-Base is an open-graded, free-draining aggregate specifically designed for projects where effective water management is essential. Unlike traditional MOT Type 1, Type 4 contains little to no fines, allowing water to pass freely through the material while still providing a strong and stable foundation. Manufactured from crushed stone or recycled aggregates, Type 4 is commonly used beneath permeable paving systems and other applications where drainage performance is a priority. Its open structure helps reduce standing water and supports Sustainable Drainage Systems (SuDS), making it an increasingly popular choice for both domestic and commercial projects. Ideal For ✔ Permeable Driveways ✔ Permeable Block Paving Systems ✔ Car Parks ✔ Drainage Layers ✔ SuDS Compliant Projects ✔ Areas With Poor Ground Drainage ✔ Commercial & Domestic Groundworks Typical Coverage One tonne of MOT Type 4 Sub-Base will typically cover approximately: • 10–12m² at 50mm depth • 6–7m² at 75mm depth • 5–6m² at 100mm depth • 3–4m² at 150mm depth Coverage is approximate and will vary depending on compaction, ground conditions, and the exact grading of the material. For driveways and permeable paving systems, a compacted depth of 100–150mm is typically recommended, depending on the expected loading and ground conditions.