Base materials
Estimate base-material volume beneath patios, paths and paving. See equivalent units and every active assumption.
Enter project dimensions.
Calculated quantities for your project.
Enter measurements and calculate to see the result.
Direct answer
Estimate the geometric volume of a specified paver-base course below a patio, path or paved area. Calculate bedding material separately because it serves a different layer.
Use it for defined base courses beneath block paving, slabs or paths after the required build-up has been established.
Use formation dimensions for the base, which may differ from the visible paving. Deduct foundations or chambers and separate steps or level changes.
Paver base, bedding material and jointing material are separate functional layers even when supplied by the same merchant.
A patio formation is 7.5 m × 4.0 m with a 1.2 m × 1.2 m planting opening. Net area is 30 − 1.44 = 28.56 m². At a specified 125 mm, or 0.125 m, volume is 3.57 m³.
The example uses geometry only. It does not insert a density, package size, recommended depth or supplier tolerance.
Specify the approved base product and grading. Ask whether any supplier conversion addresses compacted finished volume or loose delivery and keep bedding sand off the base quantity.
BulkMeasure cannot determine pavement design, loading capacity, drainage fall or compaction requirements.
No. Calculate the bedding layer separately using its own footprint and specified thickness.
No. A general allowance is not a product-specific compaction conversion.
Review BulkMeasure’s calculation methodology, learn how to measure an area, and read about volume, density and estimated weight. Browse the calculator directory when another material or project better matches the job.