Description 20mm Grey Whin Chip is ideal for surfacing pathways and drives at a relatively low cost and without the need for additional laying expertise. 20mm gravel is unlikely to get stuck inside car tyres. If you are using 20mm down Grey Chip as a decorative surface don’t forget to purchase a suitable membrane or geotextile fabric to ensure protection from weeds. Another key point 20mm Grey Chip when mixed with sand and cement will provide ballast for a high-strength concrete. Coverage Approximately At 50mm Deep Bulk Bag – 10 – 12m2 Half Bulk Bag – 5 – 6m2 25kg – 0.25m2
