Granite Gray Cobblestones (15-30cm) 1200kg Big Bag - Processed & Natural Pebbles & True Cobblestones

Granite Gray Cobblestones (15-30cm) 1200kg Big Bag

The Granite Gray Cobblestones (15-30cm) 1200kg Big Bag are an excellent choice for landscaping projects that require natural beauty, durability, and timeless appeal. Carefully processed and rounded, these granite cobblestones feature elegant shades of grey complemented by subtle white speckles and earthy tones, creating a sophisticated yet natural look. Thanks to granite’s exceptional resistance to weather, moisture, and long-term wear, they are ideal for permanent decorative and functional outdoor applications. These granite cobblestones are perfect for dry river beds, decorative garden beds, landscape borders, rock gardens, ponds, waterfalls, and water features, while also helping to reduce soil erosion. Their natural texture and large size add depth, structure, and visual interest to any outdoor setting, enhancing the landscape with minimal maintenance requirements. The 1200kg Big Bag format is suitable for larger landscaping projects, commercial developments, and demanding outdoor installations. Choose Grey Granite Cobblestones to create striking pathways, natural garden compositions, decorative landscapes, and modern architectural designs that combine functionality, elegance, and long-lasting performance. An ideal solution for anyone searching for decorative garden stone, granite landscaping pebbles, natural rock for gardens, and premium landscape materials that deliver both aesthetic value and durability.

 

► The photos may have a slight deviation in the color of the product

► The weight and sizes listed are calculated to the maximum approx

► The price of the product is valid for delivery to a destination of the buyer's choice, with the corresponding shipping costs

How to Calculate the Right Amount of Pebbles or Cobblestones for Your Project

Figuring out exactly how much pebble, gravel, or decorative stone you need is simpler than it sounds. Follow these four steps to avoid over-ordering — or running short mid-project.

Step 1 — Measure your space

Measure the length and width of the area you want to cover. Multiply the two figures to get the surface area in square metres (m²). Example: 10 m × 7 m = 70 m².

Step 2 — Choose your layer depth

The right depth depends on the size of the material:

• Fine pebbles (1–3 cm): A layer of 4–5 cm is sufficient.
• Coarse pebbles (6–7 cm): You'll need a depth of at least 10 cm for a visually appealing, stable finish.

Step 3 — Calculate cubic metres

Convert the depth to metres (e.g. 6 cm = 0.06 m), then multiply:

70 m² × 0.06 m = 4.2 m³

Step 4 — Convert to tonnes

Multiply the cubic metres by the specific weight of the material. For most types of pebbles and gravel, this is approximately 1.5 tonnes/m³:

4.2 m³ × 1.5 = 6.3 tonnes

Pro tip: Always add 5–10% extra to account for losses during installation and spreading. For gardens, patios, pathways, and planting borders, fine gravel offers excellent coverage and helps retain soil moisture, while coarse pebbles create a bold, high-impact decorative effect.

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