Sand Calculator

Complete Sand Calculator Guide

Types of Sand and Their Uses

Not all sand is the same — choosing the right type is critical for project success. Masonry sand (also called paver sand or brick sand) has fine, uniform grains that compact smoothly, making it ideal for leveling beds under pavers and as a mortar ingredient. Concrete sand has coarser, angular particles that bond well with cement and provide structural strength in concrete mix. Fill sand is unprocessed and used for backfilling trenches, raising grades, and filling voids — it compacts well but contains inconsistent grain sizes. Play sand is washed, screened, and tested for safety, designed specifically for children's sandboxes and recreational areas.

How to Calculate Sand Quantity

Sand is sold by the cubic yard or ton. To calculate how much you need, measure the length and width of your area in feet, then determine the depth in inches. The formula is: (Length × Width × Depth in inches / 12) / 27 = cubic yards. One cubic yard of sand covers approximately 324 square feet at 1 inch deep, 162 square feet at 2 inches deep, or 108 square feet at 3 inches deep. Since dry sand weighs about 2,700 lbs per cubic yard, multiply your cubic yards by 1.35 to estimate tons. Always order 5-10% extra for waste, uneven subgrade, and compaction.

Sand for Paver Installation

Paver installation requires sand in two stages. First, a 1-inch leveling bed of masonry sand is spread and screeded over the compacted gravel base to create a perfectly flat surface for laying pavers. Use screed rails (1-inch pipes) and a straight board to achieve a consistent, level surface. After pavers are laid, sweep polymeric sand into the joints — this sand contains a binding agent that hardens when wet, locking pavers in place and preventing weed growth. Plan your full paver project with our Paver Calculator.

Sand in Concrete Mix

Sand is a fundamental ingredient in concrete, making up roughly 40-45% of the mix by volume. Standard concrete mix ratios are 1 part cement, 2 parts sand, and 3 parts gravel aggregate by volume. For one cubic yard of concrete, you need approximately 0.44 cubic yards (about 0.6 tons) of concrete sand. The angular grain shape of concrete sand is essential — it interlocks with cement paste and aggregate to create structural strength. Never substitute masonry sand or play sand in concrete mix, as their rounded grains reduce strength by 20-30%. For complete concrete project costing, use our Concrete Cost Calculator.

Cost Comparison: Bulk vs. Bagged Sand

Bulk sand delivered by dump truck costs $30-$60 per cubic yard including delivery for loads of 3+ yards. Most suppliers have a minimum delivery of 1-3 yards. Bagged sand from home improvement stores runs $4-$6 per 50-lb bag — a cubic yard of sand weighs about 2,700 lbs, so you would need 54 bags at roughly $250-$325 total, making bagged sand 4-5 times more expensive per yard. The break-even point is usually around 0.5-1 cubic yards — below that, bags are more practical despite the premium. For projects over 1 cubic yard, bulk delivery saves 60-75% on material costs.