Measure your project
Measure the finished patio footprint. Enter specified base and bedding thicknesses. Check cuts, edge restraints and drainage with your installer before ordering.
Measure the space you need to fill. Rectangles use length and width; circles use diameter. For several sections, choose combined areas and add rectangles, then subtract exclusions. The final area must be greater than zero.
Check what the patio estimate includes
The planner lists base aggregate, bedding sand and rectangular pavers separately. Enter the specified base and bedding thicknesses. For pavers, enter piece dimensions, joint width and a waste percentage.
The planner uses the patio area for every layer. Measure any base extension separately. You will also need to specify edge restraints, jointing products, drainage, cuts and labor, which this estimate excludes.
Volume formula
Allowance applies once to each volume layer. No density or compaction factor is assumed. If buying by weight, enter the density for your supplier’s product in the units shown.
A worked example
An example 10-foot by 10-foot rectangle filled 4 inches deep needs 33.333 cubic feet, or 1.234568 cubic yards, without allowance. A 10% allowance gives 37 cubic feet. These are arithmetic examples, not recommended depths.
Pavers, base and bedding sand
Enter base and bedding thicknesses from your project specification, then rectangular paver dimensions and joint width. A 10-by-10-foot area with 12-inch square pavers, zero joint and 10% paver waste gives 110 pavers. Mixed-size packs, cuts and herringbone need different coverage data.
Buying and checking quantities
Enter the volume printed on a bag, or its mass alongside supplier density. Counts round up to full bags. Costs use the purchasing unit and price you enter. Delivery is separate; labor and installation are outside this estimate. Copy or print your list to check with your supplier.
Sources & what they cover
- NIST SI conversion factorsNational Institute of Standards and Technology
Exact US customary and SI conversion factors; no material or installation recommendations.
Source checked - Paver and wall installation guidelinesBelgard
Separate base, bedding and jointing materials. Product-specific instructions; no generic construction depth imported.
Source checked
We check what each reference covers. A source check does not mean a specialist has reviewed this tool. You supply the depths, densities, prices and blend proportions.