Graphite Grey Slate Chippings 40mm Bulk Bag

40mm Graphite Grey Slate is chunkier and more dramatic in appearance than the 20mm option. Its flat, angular shape helps it sit evenly, giving good coverage, while the colour shift from grey to almost black in wet conditions adds seasonal interest. The presence of quartz veins offers a distinctive sparkle and variation.

Applications and Benefits

40mm Graphite Grey Slate Chippings are ideal for:

• Garden borders and beds – larger chippings create bold contrast with planting
• Rockeries and decorative features – adds texture and depth
• Ground cover – effective for low-maintenance landscaping
• Water features and ponds* – safe for fish once rinsed; colour intensifies when wet
• Paths (light use) – suitable for decorative pathways, though less compact than 20mm

Benefits include:

• Natural colour variation with quartz veins
• Flat shape provides strong coverage
• Long-lasting, frost-resistant and easy to maintain

Coverage Guide

One 800kg bulk bag of 40mm Graphite Grey Slate Chippings covers approximately 10m² at 50mm depth.

Installation Tips

• Lay over a weed control membrane to reduce maintenance
• Contain with edging to keep slate in place along borders and features
• Rinse before laying to remove dust and bring out the natural colour
• Expect colour variation: grey when dry, dark black when wet

*Generally safe for fish but check suitability for specific species. May change water pH over time.