Paver Base Sand Volume Calculator
Free Paver base sand volume Calculator for driveway projects. Enter dimensions to get material lists and cost estimates.
Reviewed by Abdullah, Technical Content Specialist
Formula
Sand Volume = Area x (Depth / 12) / 27; Base Volume = Area x (Base Depth / 12) / 27
Calculate the project area in square feet. For each layer, convert depth from inches to feet by dividing by 12, multiply by area to get cubic feet, then divide by 27 for cubic yards. Sand density is approximately 1.35 tons per cubic yard. Crushed stone base density is approximately 1.40 tons per cubic yard.
Worked Examples
Example 1: Backyard Patio
Problem:Calculate sand and base material for a 20 ft x 15 ft patio with 1-inch sand bed and 4-inch gravel base.
Solution:Area = 20 x 15 = 300 sq ft\nSand: 300 x (1/12) / 27 = 0.93 cu yd = 1.25 tons\nBase: 300 x (4/12) / 27 = 3.70 cu yd = 5.19 tons\nTotal = 4.63 cu yd, 6.44 tons
Result:0.93 cu yd sand, 3.70 cu yd base, 6.44 tons total
Example 2: Walkway Project
Problem:Calculate materials for a 30 ft x 4 ft walkway with 1-inch sand and 4-inch base.
Solution:Area = 30 x 4 = 120 sq ft\nSand: 120 x (1/12) / 27 = 0.37 cu yd = 0.50 tons\nBase: 120 x (4/12) / 27 = 1.48 cu yd = 2.07 tons\nTotal = 1.85 cu yd, 2.57 tons
Result:0.37 cu yd sand, 1.48 cu yd base, 2.57 tons total
Frequently Asked Questions
How deep should paver bedding sand be?
Paver bedding sand should be exactly 1 inch deep after screeding and before compaction. This is the industry standard recommended by the Interlocking Concrete Pavement Institute (ICPI). Sand that is too thin (less than 3/4 inch) does not provide adequate support for the pavers and makes leveling difficult. Sand that is too thick (more than 1.5 inches) can cause pavers to settle unevenly over time as the sand shifts under load. After the pavers are placed and compacted with a plate compactor, the sand will compress to approximately 3/4 inch.
What type of sand should I use for paver bedding?
Use concrete sand or coarse washed sand that meets ASTM C33 specifications for paver bedding. This sand has angular particles that interlock and provide a stable, well-draining base. Do not use mason sand, play sand, or polymeric sand for the bedding layer because these fine sands retain moisture and shift under pressure. Polymeric sand is used only for filling joints between pavers after installation. The bedding sand should be slightly damp during screeding to hold its shape but not wet enough to clump.
How thick should the gravel base be under pavers?
The gravel base under pavers should be 4 to 6 inches for pedestrian areas like patios and walkways, and 8 to 12 inches for vehicular areas like driveways. Use compactable aggregate such as quarry process, crusher run, or road base material that contains a mix of stone sizes from dust to 3/4 inch. The base should be compacted in 2-inch lifts using a plate compactor to achieve at least 95 percent compaction. Proper base thickness is critical because an inadequate base is the leading cause of paver settling and shifting.
How much extra sand should I order for paver installation?
Order 10 to 15 percent extra sand beyond your calculated needs to account for uneven subgrade, compaction losses, and waste during screeding. For the bedding layer, this extra material helps fill low spots in the base and provides enough for the final joint filling step. For a typical 300 square foot patio, this means ordering about 0.1 to 0.15 extra cubic yards of sand. If your subgrade is particularly uneven or if you are working on a slope, increase the overage to 20 percent. Leftover sand can be used for joint sweeping maintenance in future years.
References
Reviewed by Abdullah, Technical Content Specialist · Editorial policy