Sandbox Calculator
— How Much Do You Need?

The best sandbox sand is fine, washed, and screened. It should feel soft to the touch, drain well after rain, and be free of rocks, oversized particles, and sharp debris. That combination makes it easy and comfortable for kids to dig, mold, and pour. Play sand is processed specifically for recreational use, which is what sets it apart from other sand types. Construction-grade options like concrete sand or fill sand are processed for entirely different applications and tend to be coarser, dustier, or less refined than what you want in a play area. When you're choosing sand for a sandbox, you want a product that has gone through a washing and screening process designed with play use in mind, not one that was processed for structural fill or concrete mixing. Hello Gravel's sandbox sand is sourced with that distinction in mind, and our team is happy to answer any specific questions about what we have available in your area.

For most sandbox setups, a depth of 6 to 12 inches of sand hits the sweet spot. Less than 6 inches and kids will bottom out quickly; more than 12 inches adds material cost without adding much play value. Here is a practical way to think about quantity: at 6 inches of depth, one cubic yard of sand covers roughly 54 square feet. At 12 inches of depth, that same cubic yard covers about 27 square feet. So a 15x15 foot sandbox filled to 6 inches would need approximately 4 to 5 cubic yards of sand. A 20x20 foot play area at the same depth would need around 7 to 8 cubic yards. Keep in mind that these are real-world estimates, and your actual number will depend on your exact dimensions and how level your base is. The Hello Gravel calculator lets you plug in your specific measurements and get a precise quantity for your project. We always recommend using it before you finalize your order so you are not caught short on delivery day.

Sand is not a one-size-fits-all material. Different types are processed for different jobs, and using the wrong one in a sandbox can make for a rough, dusty, or uncomfortable play experience. Play sand goes through a washing and screening process to produce a fine, clean, uniform grain. It is specifically intended for recreational and play applications. Concrete sand, sometimes called coarse sand, has a sharper, grittier texture suited for mixing into concrete or mortar. Mason sand is finer than concrete sand but is still processed for construction use, and it may pack too hard for comfortable digging. Fill sand is used for grading and leveling under structures, not for play. If you are filling a sandbox where children will spend time digging and building, play sand is the right call. Using a construction-grade material can leave kids with scratchy, gritty sand that does not mold well and may contain particles or dust you would rather not have in a play environment. If you are unsure which product is right for your project, reach out to the Hello Gravel team and we will point you in the right direction.

Hello Gravel delivers bulk sand by the truckload, and a standard load carries roughly 10 to 14 cubic yards of material. That volume is a great fit for larger sandbox installations where quantity actually adds up fast. Think about school playgrounds, daycare centers, community parks, or large residential backyard play areas. At 6 inches of depth, a 10-cubic-yard delivery covers approximately 540 square feet of sandbox space, which is roughly a 23x23 foot area. For those kinds of projects, bulk delivery is far more practical and cost-effective than sourcing material any other way. If your sandbox is on the smaller side, it is worth thinking about whether you have other uses for the remaining material. Fine play sand works well as a leveling layer under pavers and stepping stones, as a base for artificial turf, in a beach volleyball court, or as a drainage amendment in garden beds. Planning a secondary use for any leftover sand means nothing goes to waste. Use the Hello Gravel calculator to enter your full project dimensions, and if you want to talk through the right quantity for your situation, our team is always glad to help.

The process is simple from start to finish. You place your order on the Hello Gravel website, choose the quantity you need, and select a delivery date that works for your schedule. Hello Gravel then connects your order with a vetted local hauler who will deliver the sand to your property by dump truck on the date you picked. Delivery is free, and pricing is clear and upfront before you confirm your order. No hidden fees, no surprises. The driver will dump the material in the spot you designate, so have your drop zone decided before delivery day. Once the truck rolls off your property, you are ready to spread and start building. Compared to hauling bags from a store or waiting on a series of small deliveries, a single bulk drop gets your project moving faster and at a better value per cubic yard.