Tumbled Blue Grey Rocks (20-40mm)

Tumbled Blue Grey Rocks (20–40mm) are smooth, decorative stones that create a premium, contemporary finish in modern landscaping projects. Their soft grey tones blend perfectly with current landscaping trends, making them a popular choice for:

• Garden beds
• Decorative ground cover
• Pathways and around stepping stones
• Courtyards and modern landscape designs

To calculate how much Tumbled Blue Grey Rocks (20–40mm) you need for your project, measure the length and width of the area where the stones will be placed.

Next, determine the desired depth of the stones. The required depth will vary depending on your project and the area you need to cover.

Once you have your length, width, and depth measurements, you can use our cubic metre calculator above or calculate the volume manually using the following formula:
Volume = Length × Width × Depth

Recommended Depth: As a general guide, we recommend laying decorative stones at a depth of 40–50mm. However, the ideal depth will depend on your project and the size of the stones. Larger stones may require a deeper layer for even coverage, while smaller stones can often be laid slightly thinner.

Yes. Tumbled Blue Grey Rocks (20–40mm) are a great choice for decorative pathways, around stepping stones, water features, and garden beds. Their smooth finish and soft, powdery texture give them a high-end look that complements modern landscapes, country gardens, and cottage-style gardens.

Proper preparation helps minimise weed growth, improves drainage, and creates a long-lasting decorative finish. To install your Tumbled Blue Grey Rocks (20–40mm), we recommend following these steps:

1. Prepare and level the area.
2. Install weed mat to help prevent weed growth.
3. Install garden edging to keep the stones neatly contained.
4. Spread the stones evenly to the desired depth.
5. Rake the stones to create an even, natural-looking finish.