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Recommended depth: 75-150mm for driveways

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20kg Bags
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Bulka Bags

Calculating Gravel for a 10 Square Metre Area

Ten square metres is a common size for smaller gravel projects such as a courtyard feature area, a side-of-house strip, or a decorative bed around a feature planting. At 75mm depth, which suits most decorative and light-use applications, you'll need approximately 0.75 cubic metres of blue metal or decorative gravel to cover this area.

Three quarters of a cubic metre of blue metal gravel weighs approximately 1.13 tonnes. This is a quantity that sits at the threshold between bagged and bulk options. While you could buy approximately 56 bags of 20kg gravel, most landscape suppliers will deliver bulk quantities from half a cubic metre upward, often making bulk the more practical and economical choice at this volume.

Depth Selection for Different Uses

The right depth depends on your intended use for the gravel area. For purely decorative applications where there's no foot traffic, 50mm provides adequate coverage. For regular walking paths and general-purpose areas, 75mm is the standard choice. If the area will see heavy use or you want maximum durability, 100mm gives you extra material to account for settling and displacement over time.

Practical Considerations

For a project this size, consider how you'll contain the gravel. Without proper edging, gravel tends to migrate into surrounding lawn or garden areas. Even for small areas, installing some form of edge restraint, whether steel edging, timber, or natural stone borders, will keep your gravel looking neat and reduce ongoing maintenance. Plan your delivery access too, as even three quarters of a tonne of material is challenging to move long distances by wheelbarrow.

Need to calculate different dimensions or depths? Use our main gravel calculator to adjust the measurements.