AP40 is a heavy‑duty structural basecourse aggregate designed for high‑traffic areas, machinery yards, farm races, roading foundations, and commercial sites. With its larger particle size and reduced fines, AP40 delivers exceptional load‑bearing strength and superior drainage performance. It is the preferred choice for projects requiring maximum stability under heavy vehicles and equipment.
Why AP40 Is the Backbone of Structural Foundations
AP40 sits at the coarse end of the AP grading system, containing particles up to 40mm. This larger stone size creates a strong, interlocking base that resists movement, rutting, and pumping under pressure.
Contractors rely on AP40 for rural and commercial projects where durability is non‑negotiable — especially in areas exposed to trucks, tractors, diggers, and heavy machinery.
AP40 is also ideal for stabilising wet or clay‑heavy ground. Its coarse grading allows water to drain more freely, reducing the risk of bogging and improving long‑term performance. When topped with AP20, AP40 forms a robust two‑layer system suitable for driveways, yards, and accessways.
Typical Uses
Benefits of AP40
Performance & Durability
AP40 is engineered for demanding environments. Its coarse structure provides unmatched stability, making it suitable for trucking depots, mechanical workshop yards, farm machinery areas, and commercial foundations. When compacted correctly, AP40 forms a long‑lasting base that withstands constant pressure and harsh weather conditions.
Product Specifications
