The whole question comes down to one line of math: area × depth ÷ 27 = cubic yards of sand. Get your area in square feet, your depth in feet, divide by 27, and you've got the number that orders the truck. Everything else — the weight, the bag count, the price — falls out of that one figure. This guide walks through the formula, then the things it doesn't tell you: how much a yard of sand weighs, how many bags that is, how deep to go for each kind of project, and when buying in bulk beats buying bags.
Sand seems like the simplest material on the jobsite until you try to order it. It's sold by the bag at the home center, by the ton at the quarry, and used by the cubic yard in your project — three units for one pile. Mix them up and you either come up short halfway through bedding a patio or you end up with two extra tons in the driveway. Let's keep that from happening.
The volume formula
Everything starts with volume, and volume is just area times depth. The only trick is units — you measure in feet and inches, but sand is sold by the cubic yard, and a cubic yard is 27 cubic feet (a yard is 3 feet on every side, and 3 × 3 × 3 = 27). Here's the clean version:
Cubic yards = (length ft × width ft × depth ft) ÷ 27
Depth is where people slip, because it's almost always given in inches. Convert it to feet by dividing by 12: a 1-inch layer is 0.083 ft, a 2-inch layer is 0.167 ft. So a 10-by-12-foot patio with a 1-inch sand bedding layer is (10 × 12 × 0.083) ÷ 27 = 0.37 cubic yards. That divide-by-27 is the step that trips up nearly everyone — people reach for 9 because there are 9 square feet in a square yard, but volume is cubed, not squared. If you'd rather not run it by hand, the sand calculator does the whole chain and lets you enter depth in inches directly.
How much does sand weigh?
Once you've got cubic yards, weight matters for two reasons: the quarry sells by the ton, and you need to know if your trailer or your back can handle the load. Dry sand runs about 2,700 pounds per cubic yard — call it 1.35 tons. Wet sand is heavier, closer to 3,000 pounds, because the water adds weight without adding volume.
That 1.35-tons-per-yard figure is the conversion to keep in your head. If a supplier quotes sand at $30 a ton and you need 2 cubic yards, that's 2.7 tons, or about $81 in material before delivery. It also explains why you don't haul much sand in a car trunk — a single cubic yard is well over a ton, enough to overload a light trailer or flatten a half-ton pickup's suspension. When in doubt, have it delivered.
| Measure | Per cubic yard |
|---|---|
| Weight (dry) | ~2,700 lb |
| Weight in tons | ~1.35 tons |
| Cubic feet | 27 cu ft |
| 50-lb bags (~0.5 cu ft each) | ~54 bags |
How many bags of sand in a cubic yard?
For small jobs, bagged sand from the home center beats ordering a bulk delivery you can't use up. A standard 50-pound bag holds roughly 0.5 cubic feet. Since a cubic yard is 27 cubic feet, that's about 54 bags per cubic yard — the number worth memorizing, because it's also the number that tells you when to stop buying bags and call the quarry.
Do the math on that and the case for bulk gets loud fast. Fifty-four bags at, say, $5 each is around $270 for one cubic yard of sand in bag form. The same yard bought bulk might be $35 to $55 in material. Bags buy you convenience, no delivery fee, and the ability to use exactly what you need and store the rest dry — but past a yard or so, you're paying a steep premium for that convenience and lugging a lot of plastic.
Sand numbers worth memorizing
- 1 cubic yard = 27 cubic feet = ~1.35 tons = ~54 fifty-pound bags.
- Dry sand weighs ~2,700 lb per cubic yard; wet sand closer to 3,000.
- A 50-lb bag holds about 0.5 cubic feet.
- Bulk beats bags above roughly 1 cubic yard on cost.
How deep should the sand be? Depth by use
Depth is the variable that changes everything, and it depends entirely on what the sand is doing. Too thin and it won't do its job; too thick and a paver bedding layer turns spongy and your pavers settle unevenly. Here are the depths we work to.
| Use | Typical depth | Coverage per cubic yard |
|---|---|---|
| Paver / flagstone bedding | 1" | ~325 sq ft |
| Above-ground pool base | 2" | ~160 sq ft |
| Sandbox fill | 8–12" | ~27–40 sq ft |
| Paver joint filling | varies | Small amounts; fills gaps only |
The paver bedding number is the one most people are after, and a 1-inch screeded bed is the standard — not 2 or 3 inches, which is a common and costly mistake. A thick sand bed compresses unevenly under traffic and your nice flat patio develops dips. One inch of bedding sand over a properly compacted gravel base is the right recipe; the gravel does the load-carrying, the sand just gives the pavers a smooth, level seat. If you're planning a paver project, the paver base calculator sizes both the gravel base and the bedding sand together so the layers come out right.
Types of sand and which to use
"Sand" on the ticket can mean several different products, and using the wrong one causes real problems. Here's the short field guide.
| Type | Texture | Best for |
|---|---|---|
| Concrete / sharp sand | Coarse, angular | Paver bedding, mixing concrete — locks tight, drains. |
| Mason sand | Fine, uniform | Mortar, brick joints, smooth finishes. |
| All-purpose sand | Mixed grade | General fill, sandbags, traction. |
| Play sand | Washed, fine, screened | Sandboxes — cleaned and safe for kids. |
The mistake we see most is using fine mason sand or play sand for paver bedding. It looks tidy, but fine rounded sand doesn't lock up — it shifts under load and washes out of the joints, and your pavers go wavy. For bedding pavers you want concrete sand (sometimes called sharp or bedding sand), which is coarse and angular so it stays put. Save the play sand for the sandbox, where washed and screened is exactly what you want around kids, and the mason sand for mortar work.
A worked example: paver bedding and a sandbox
Let's run two real ones. First, a paver patio bedding layer. Say you're laying a 12-by-16-foot patio — 192 square feet — on a 1-inch bed of concrete sand.
- Area: 12 × 16 = 192 sq ft
- Volume: 192 × 0.083 (1 inch in feet) = 15.9 cu ft, ÷ 27 = 0.59 cubic yards
- In tons: 0.59 × 1.35 = ~0.8 tons
- In bags: 0.59 × 54 = ~32 fifty-pound bags — right at the line where bulk starts winning
Now a sandbox. A 5-by-5-foot box filled 10 inches deep:
- Area: 5 × 5 = 25 sq ft
- Volume: 25 × 0.833 (10 inches in feet) = 20.8 cu ft, ÷ 27 = 0.77 cubic yards
- In bags of play sand: 0.77 × 54 = ~42 fifty-pound bags
Notice the small sandbox needs more sand than the much larger patio — that's depth at work. A patio uses a paper-thin 1-inch bed across a big area, while a sandbox is a deep box over a small footprint. It's a good reminder that square footage alone tells you nothing; depth is half the equation. To pin down the area on an irregular patio before you start, the square footage calculator makes quick work of odd shapes.
That chart is the depth lesson in one picture. The two sandboxes, both small in footprint, dominate the volume because they're filled deep. The patio bedding layer, spread thin across 192 square feet, barely registers. Always run the full formula — eyeballing by area alone will burn you on anything deep.
Bulk vs bags: where's the break-even?
The decision comes down to how much you need and whether you can take a delivery. Under about half a cubic yard — a small bedding job, topping off a sandbox — bags win on convenience, and there's no delivery fee to absorb. Between half a yard and a full yard it's a judgment call: roughly 27 to 54 bags is a lot of lifting and a lot of plastic to recycle, and a bulk delivery may already be cheaper once you total the bag prices. Above a cubic yard, bulk wins clearly on cost — that yard of bagged sand at ~$270 versus ~$45 bulk isn't close.
The catch with bulk is delivery and storage. Quarries often have a 1-ton or multi-yard minimum and charge a delivery fee that can rival the sand cost on a small order, so a single yard delivered isn't always the bargain it looks. And bulk sand has to go somewhere dry — a tarp on the driveway works for a few days, but sand left open soaks up rain and weeds in. Buy bulk when you'll use it promptly and have a spot for it; buy bags when the job is small or you need to dole it out over time.
2026 sand prices
Here's where sand prices sit nationally in 2026. As with all aggregates, freight is the wild card — sand is cheap to dig and expensive to haul, so the farther you are from a pit, the more delivery dominates the bill. Treat these as planning estimates.
| How sold | Typical 2026 price |
|---|---|
| Per ton (bulk, quarry pickup) | $25–$45 |
| Per cubic yard (bulk) | $35–$60 |
| 50-lb bag (all-purpose / concrete) | $4–$7 |
| 50-lb bag (play sand, washed) | $6–$10 |
| Delivery (bulk, local) | $50–$150 |
Play sand costs more per bag because it's washed and screened for safety, which is worth paying for around kids. For bedding and fill, the cheaper all-purpose or concrete sand is the right call — you're not paying for the cleaning you don't need. And if you're mixing your own concrete, that same concrete sand is a component of the mix; see our concrete slab cost guide for where sand fits into the bigger material picture. Size the concrete itself with the concrete calculator.
Common questions about how much sand you need
How many cubic yards of sand do I need?
Multiply your length by width for square feet, multiply that by the depth in feet (inches ÷ 12), then divide by 27. For a 200-square-foot area at a 1-inch depth that's 200 × 0.083 ÷ 27 = about 0.6 cubic yards. The sand calculator runs this automatically and converts the result to tons and bags so you can order in whatever unit your supplier uses.
How much does a yard of sand weigh?
About 2,700 pounds, or roughly 1.35 tons, for dry sand. Wet sand is heavier — closer to 3,000 pounds per cubic yard — because water adds weight without adding volume. That weight is why a single cubic yard will overload most light trailers and squat a half-ton pickup, so anything beyond a yard or two is usually worth delivering.
How many 50-lb bags of sand are in a cubic yard?
About 54 bags, since a 50-pound bag holds roughly half a cubic foot and a cubic yard is 27 cubic feet. That number is also your bulk-vs-bag signal: once you're buying more than 30 or 40 bags, a bulk delivery is usually cheaper despite the delivery fee, and a lot less lifting.
What kind of sand goes under pavers?
Concrete sand — also called sharp or bedding sand — in a 1-inch screeded layer over a compacted gravel base. It's coarse and angular, so it locks together and stays put under traffic. Avoid fine mason sand or play sand for bedding; they shift and wash out, and your pavers go wavy. For the narrow joints between pavers, a polymeric jointing sand that hardens when wetted is the usual choice.
The bottom line
Figuring out how much sand you need is one formula — area times depth divided by 27 for cubic yards — plus two conversions to keep handy: about 1.35 tons and roughly 54 fifty-pound bags per yard. Match the depth to the job (1 inch for paver bedding, deep for a sandbox), pick the right sand type (concrete sand for bedding, play sand for kids), and let the one-yard mark decide between bags and bulk. Run your real numbers through the sand calculator and paver base calculator before you buy, and you'll order the right pile the first time.