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How much stone do I need for the ground?
For pebbles and gravel:
• ±80 kg per m², based on a 5 cm layer.*For grain sizes >32 mm a thicker layer is required.• Consumption per big bag: 1000 kg = 0.625 m³.
• Coverage: ±12.5 m² with a 5 cm layer.
For pine bark:
• ±70 L per m², based on a 5 cm layer.
• Consumption per big bag: 1000 L = ±1 m³ = ±600 kg
• Coverage: ±14 m² with a 5 cm layer.
For volcanic rock, slate and chamotte:
• ±50 kg per m², based on a 5 cm layer.
• Consumption per big bag: 1000 kg = ±1 m³
• Coverage: ±20 m² with a 5 cm layer
How much stone do I need to fill a gabion?
Density of ±1,650 kg per m³.
The calculation is easy to understand with an example: for a gabion measuring 100x50x30 cm, do the following:
1x0.5x0.3 = 0.15 m³
0.15x1,650 = 247.50 kg of stone.
*It is always a good idea to allow 5% extra, as gabions widen slightly when filled and always take a little more stone than the theoretical calculation.
PLEASE NOTE! Before buying, read this information about gravel and pebbles
Grain sizes are sieve sizes, not exact measurements
When we talk about stone of, for example, 60-80 mm, we mean that the stones pass through an 80x80 mm square mesh and do not pass through a 60x60 mm one. A stone 100 mm long and 65 mm wide can easily pass through that 80x80 mesh, because the mesh sorts by the width of the stone as it passes through, not by its total length. That is why it is normal for a percentage of stones to have some dimension above 80 mm or below 60 mm.
Machines do not sort 100% accurately
In addition, no industrial sorting process is perfect: there is always a small percentage of stone which, due to speed, irregular shape or pieces overlapping on the belt, does not pass correctly through the corresponding mesh and slips into the grade, so stones larger than stated may occasionally appear. This is normal for this type of product and is not considered a defect.
Breakage of pebbles
In pebbles over 60 mm, up to 10% of the stones may break during sorting, washing, loading and unloading. We currently have no machinery that completely prevents this breakage. The product photos show only real pieces: broken pieces have not been removed.
Dust and sand in the product
This product is not washed, so it contains dust, sand and even traces of other materials from processing and transport. This is no problem for its use: the stone washes itself over time, or you can rinse it with water before use if you prefer.
Colour can vary considerably between batches
This is natural stone, and the colour changes from one batch to another, sometimes noticeably. This is especially important for multi-toned stones such as Blanco Rosa: some batches come out very white and others very pink, within the same product. If the exact shade is very important for your project, we recommend not buying this type of product online, as we cannot guarantee that the batch you receive will match the photo or a previous purchase.
Returns
Please bear in mind that returns, especially of 1,000 kg big bags, are usually complicated and expensive because of the weight and volume of the material. If the return is not due to an error on our part, the costs and arrangement of the return transport are borne by the customer.
Take advantage of our limited edition of Economical Slate Gravel, a unique opportunity for those who need to cover large areas of land with a spectacular result for a minimal investment. This product offers the same beauty, shine, and gray/black color as our standard range, but at a significantly reduced price as it is not part of the supply circuits for large corporate projects.
If you have a large garden, a plot you want to tidy up, or are looking for a temporary decorative solution with a big impact, this is your option. For very little money, you will obtain a weed free, modern, and visually impeccable space.
We have adjusted the price in two specific grain sizes to suit each type of project:
Size 6-14 mm: The finest and most elegant grade. Available exclusively in Big Bag of 1,000 kg. Ideal for detail areas and paths.
Size 6-40 mm: A versatile and balanced mix. Available in full pallets of 50 bags of 20 kg (1,000 kg in total), facilitating manual handling in hard-to-reach areas.
For large-scale projects, we offer bulk supply in full truckloads of 25 tons. This is the most economical way to purchase the product. Since logistics costs vary by location, this format requires custom quote.
Efficient Coverage: Thanks to its thin flake shape, it covers much more than other gravels, requiring fewer kilos to cover the same area.
Hydration and Savings: Retains moisture up to 4 times more than traditional gravels, helping to keep your plants healthy and reducing watering costs.
No Maintenance: It does not rust, does not lose its color over time, and creates a natural barrier that minimizes weed growth.
Don't miss this opportunity. Beautify your land with the elegance of slate for a fraction of its usual cost.
Need a full truck of 25 tons? [Click here to request your custom quote] indicating your postal code to calculate the best transport price.
Note on the finish: As it is a direct quarry product, it is normal for the stone to have some dust or surface soil remnants. Don't worry: once installed, a quick hose down or waiting for the first rain will clean the flake and reveal its shiny finish and intense color spectacularly.
Es una edición limitada fuera de los circuitos de grandes obras: misma belleza, brillo y color gris/negro a precio reducido.
Para cubrir grandes extensiones con un resultado espectacular y una inversión mínima.
Big bag de 1.000 kg y palet de 50 sacos de 20 kg, pensados para superficie grande.
Al ser un material ligero cunde más que una grava convencional: calcula unos 50 kg por m² para una capa de 5 cm. Un big bag de 1.000 kg cubre alrededor de 20 m².
Hay 2 medidas: 6-14 mm, 6-40 mm. Para zonas de paso y estabilizadores de grava elige la más fina; las medias decoran parterres y alcorques, y las gruesas son puramente decorativas o para gaviones, no para pisar.
En Big bag 1.000 kg y Palet 50 sacos 20 kg. El transporte te deja el palet o big bag en la puerta de casa.
Sí, muy recomendable: una malla o geotextil antihierbas bajo la piedra evita que salgan malas hierbas y facilita el mantenimiento durante años.