01248 353 595 The right aggregate depends on what you are building. Sub‑bases for drives and paths usually need a compactable MOT‑type material, while decorative gravel works as a top layer or around planting. Concrete mixes, drainage trenches and haul roads each use different grades.
• For driveways and high‑use areas, a compactable sub‑base such as MOT type 1 under a suitable surface layer is usually recommended. Or recycled aggregate 0/40mm grading
• For paths and decorative areas, a decorative gravel or stone in a suitable size (commonly 10mm, 14mm or 20mm) works well.
• For foundations and more heavily loaded areas, a stronger sub‑base and greater depth are usually needed.
• For drainage a common aggregate used would be a 28mm clean or 40/60, 80/150mm.
If you tell us what you are working on we can recommend the most suitable product and depth.