20-40mm Dorset Limestone is a versatile crushed stone aggregate sourced from our Swanworth Quarry in the Isle of Purbeck. This product contains stones ranging from 20 mm up to 40 mm with no fines or dust, making it ideal where free-draining material is required. Because there are no fine particles, water can pass through easily, a key benefit for drainage layers, sub-bases and construction applications where moisture must escape rather than build up. Typical uses include: Drainage layers for arenas, pitches and roadways Sub-base for paths and patios Voids and fill where rapid water movement is needed Aggregate for ground stabilisation 20-40mm Dorset Limestone is supplied in bulk bags or loose loads depending on project size and access. 20-40mm Dorset Limestone FAQs: What is 20-40mm Dorset Limestone used for?It’s primarily used in drainage applications, sub-base layers, void fill and ground stabilisation due to its large, clean stones and lack of fines. Can it be used for driveways?It can be used for driveways when installed over a suitable compacted sub-base, but we would recommend our 20mm Dorset Limestone Chippings as a better option. Is 20-40mm Dorset Limestone free-draining?Yes, the larger stone sizes allow water to pass through easily, reducing issues with standing water. This makes is a fantastic material for drainage layers. How is it delivered?Our 20-40mm Dorset Limestone is available in bulk bags or loose loads depending on the quantity and site access requirements. If this material doesn’t suit your requirements you can see our other stone aggregate here Important DetailsThese materials are naturally occurring so can be subject to colour changes. Delivered in a bulk bag, please note bags weigh approximately one tonne including packaging. The price listed does not include delivery costs, these are added once a postcode is given at basket/checkout stage
