Gravel for 20 Square Metres

Calculating Gravel for a 20 Square Metre Area

Twenty square metres is a medium-sized gravel project that might include a courtyard area, a side path and associated decorative beds, or a small parking pad. At 100mm depth, which provides adequate coverage for most pedestrian and light vehicle applications, you'll need approximately 2 cubic metres of blue metal gravel to cover this area effectively.

Two cubic metres of blue metal gravel weighs approximately 3 tonnes, making this a substantial but manageable bulk delivery. At this volume, you're well past the point where bagged gravel makes sense and firmly in bulk delivery territory. The weight also means you'll want to plan where the truck tips the load carefully to minimise wheelbarrow trips.

Delivery and Access Planning

Three tonnes of gravel will form a pile roughly 1.5 metres square and nearly a metre high. Most residential properties can accommodate this in a driveway, but discuss access with your supplier if your property has limited space or difficult truck access. Some suppliers can use smaller vehicles for tight access situations, though this may involve multiple trips for this quantity.

Application Scenarios

Twenty square metres at 100mm depth suits a range of common projects. A generous courtyard area with outdoor furniture, a combination of paths and decorative beds around a garden feature, or a small off-street parking space all fall within this size range. The 100mm depth chosen here provides durability for foot traffic while remaining economical for larger decorative areas where maximum depth isn't essential.

Working with a different area or depth? Use our main gravel calculator to customise the calculation.