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 chippings, 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.

40-20mm Tweed Pebbles decorative chippings are intended as a decorative surface, border, or driveway topping. Colour, natural subtle sparkled texture, 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.

Spread evenly over the prepared sub-base to the recommended depth. Rake or lay by hand to ensure an even, flat distribution across the entire area.

Check the finished surface level and slope to ensure proper drainage away from surrounding structures. Ensure the 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 colors are present in Tweed Pebbles, and how do they look when wet?

Tweed Pebbles showcase an earthy, multi-tonal mix of warm chestnuts, soft tans, slate greys, and cream tones. When dry, they have a subtle, natural matte finish. When wet, the colors intensify into rich, deep tones that bring a striking riverbed appearance to garden spaces.

What are the primary landscaping uses for the 20–40mm size range?

This versatile 20–40mm size range is ideal for decorative borders, wide garden paths, rockeries, alpine beds, and dry riverbed features. Their smooth, rounded edges make them comfortable underfoot while providing a substantial, neat ground cover around larger plants and architectural elements.

Are Tweed Pebbles suitable for driveways?

While 20–40mm pebbles can be used for decorative driveways, rounded pebbles tend to move and roll under heavy vehicle tires more easily than sharp, angular chippings. For high-traffic vehicular areas, angular stone types like granite or basalt generally offer better stability, whereas Tweed Pebbles excel on footpaths and decorative ground cover.

Are Tweed Pebbles fish-friendly for ponds and water features?

Yes, natural quartz and granite-based Tweed Pebbles are inert and fish-friendly. They will not leach harmful minerals or alter the pH balance of water, making them an excellent choice for lining pond edges, stream beds, and fountain surrounds. A quick rinse with clean water before installation is recommended to wash away fine transit dust.

How do Tweed Pebbles assist with weed control and moisture retention?

When laid over a high-quality geotextile weed membrane, the dense layer of pebbles blocks sunlight from reaching the soil, effectively suppressing weed growth. The natural stone layer also functions as a protective mulch, reducing water evaporation in summer and insulating plant roots during colder winter months.