As an approximate guide, one bulk bag will cover:

• 10–12m² at a depth of 50mm

• 6.5–7.5m² at a depth of 75mm

• 5–6m² at a depth of 100mm

Garden borders, rockeries, and footpaths commonly require around 40mm to 50mm of decorative gravel, while domestic driveways typically require approximately 50mm to 75mm depending on the ground conditions and sub-base.

These figures are estimates only. Actual coverage will vary according to the bag weight, ground conditions, compaction and the accuracy of the excavation.

Not sure how many bags you require? Call our Rugby team on 01788 866945 with the length, width and required depth.

20mm Golden Flint decorative chippings are intended as a decorative surface, border, or driveway topping. Colour, warm golden and tan hues, and angular shape can vary according to the source of the stone.

Excavate the area to the required depth and prepare the ground appropriately. A suitable geotextile membrane may be required to prevent weed growth and stop the subgrade from mixing with the aggregate.

Spread the 20mm Golden Flint chippings evenly over the prepared sub-base to the recommended depth, typically around 40mm to 50mm for borders and footpaths, or 50mm to 75mm for driveways. Rake the chippings to ensure an even distribution across the entire area.

Check the finished surface level and slope to ensure proper drainage away from surrounding structures. Ensure the aggregate depth is consistent to prevent exposed patches or uneven surface layers.

Requirements vary according to ground conditions, loading, and the intended use of the surface. Follow the project specification or seek professional advice where appropriate.

Available for collection from our Rugby branch or local delivery using our own fleet.

Bulk bags will normally be delivered by a crane-equipped lorry. Delivery is kerbside and the final offloading position is always subject to safe access and the driver’s discretion.

Please tell us before delivery about:

• Narrow roads or restricted entrances
• Parked vehicles or limited turning space
• Overhead cables, trees or other obstructions
• Soft, sloping or unsuitable ground
• Any other access concerns

Enter your postcode on the product page to check your delivery area. We’ll confirm the delivery date after your order is placed.

What is 20mm golden flint?

20mm golden flint, often called golden gravel, is a popular decorative aggregate made from crushed natural flint. It features a warm mixture of golden-yellow, buff, chestnut, and cream tones, with an angular shape that gives it a textured appearance.

What is 20mm golden flint used for?

Golden flint is widely used for garden borders, footpaths, rockeries, plant toppers, and driveways. Its bright, warm colors make it ideal for contrasting against greenery and updating tired garden beds.

Is 20mm golden flint suitable for driveways?

Yes. Golden flint is one of the most durable materials available for driveways. At 20mm, the angular stones interlock under weight to form a firm surface that resists shifting and won't get stuck in car tire treads.

How does the appearance of golden flint change when wet?

When dry, golden flint displays soft, natural pastel shades of cream, yellow, and tan. When wet, the colors intensify into rich, vibrant golds, ambers, and deep warm browns.

Are golden flint chippings fish-friendly?

Yes. Flint is an inert natural stone that will not alter the water chemistry, pH balance, or mineral levels. It is safe to use around ponds, streams, and decorative water features (washing the stone first to remove dust is recommended).

Will 20mm golden flint wear down or crush over time?

No. Flint is an extremely hard, resilient rock type. It is resistant to weathering, frost damage, and heavy traffic, ensuring it retains its structural integrity and sharp definition over many years.