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Fill sand calculator · tons

Fill Sand Calculator

How much fill sand do you need? Measure each low spot or area and get the tons.

1 · Material

Fill Sand · sold by the ton

2 · Two quick choices: depth, then size

2a · Pick a depth
2b · Then measure your areas

Length × width in feet. Add as many areas as you need; we add them up.

Recommended order

17 tons

of Fill Sand

≈ 13.1 yd³ · covers 300 sq ft at 12″ · 1 dump truck

300 sq ft × 12 in ÷ 12 ÷ 27 = 11.11 yd³ × 1.3 t/yd³ = 14.4 tons. Plus 15% for compaction and spreading, rounded up to a whole ton.

3 · Get your delivered quote

One ton of fill sand

  • ≈ 0.77 yd³ (21 cu ft)
  • covers 21 sq ft at 12″
  • a yd³ weighs about 2,600 lb
  • a full truck is about 21 tons
Convert tons ↔ cubic yards →

About this material: Fill Sand →

How much does a ton of fill sand cover?

Cubic yards = area (sq ft) × depth (in) ÷ 12 ÷ 27. Tons = cubic yards × the material’s density. The calculator then adds the buffer for compaction and spreading and rounds up. Tons use our catalog densities: fill sand 1.3 t/yd³.

Swipe the table sideways →

DepthUsed forCoveragePer 100 sq ft
6″One compacted 6″ lift.42 sq ft per ton2.41 tons
12″Most low spots. (typical)21 sq ft per ton4.81 tons
2 ftPool or deep backfill, in 6–8″ lifts.10 sq ft per ton9.63 tons

Before the buffer. Updated November 2026

How much fill sand for common projects

Swipe the table sideways →

ProjectDepthAreaEstimate
Pool removal 16 × 32 × 5 ft5 ft512 sq ft~120 tons
Low-spot fill 500 sq ft6″500 sq ft~11 tons
Foundation backfill (varies)trenchvariesrequest quote
Pad base lift 30 × 50 ft6″1,500 sq ft~35 tons

Before the buffer. Measure your own areas above for an order quantity.

Fill sand delivered in Florida

Delivered by dump truck. “From” prices are per ton on a full truck, delivery included; the second line is the smallest load.

Fill sand mistakes to avoid

Fill sand for structural concrete

Use ASTM C33 concrete sand for any structural mix. Fill sand is for grading only.

No lifts on deep fills

Dumping 3 feet of sand and walking away gives you a sinkhole within a year. Place in 6–8 inch lifts.

Pool fill without breaking the shell

A sealed pool shell traps water under fill and creates a long-term sinkhole. Break the bottom up before filling.

Sand against an unprotected foundation

Sand drains, which is good, but install proper drainage at the base of the foundation before backfilling.

Fill sand calculator questions

A 16 × 32 × 5 ft pool needs roughly 120 tons of fill sand for a complete fill in lifts.

Need another material? All calculators →

Know how much fill sand you need? Get your delivered quote.

We’ll quote your 17 tons of fill sand, delivery included.