0-40mm MOT Type 1 Sub-Base

MOT Type 1 Sub-Base, also known as DOT Type 1, is a certified aggregate produced from granite, limestone, basalt or gritstone. Graded from 40mm down to dust, it compacts into a dense, stable layer with excellent load-bearing strength. Widely approved under SHW 803, it is the most reliable choice for roads, footpaths, driveways, patios and foundations. Its angular particles interlock tightly, ensuring durability, frost resistance and long-term stability in demanding environments.