How Much Topsoil Do I Need?

Quick Answer

To find how much topsoil you need, multiply the area in square feet by the depth in inches, then divide by 324. That gives you cubic yards. For example, a 1,000-square-foot lawn at 3 inches deep needs about 9 cubic yards. One cubic yard covers 324 square feet at 1 inch deep, or roughly 108 square feet at 3 inches. Round up to the nearest half yard so you have enough to cover settling.

How do you calculate how much topsoil you need?

Topsoil is sold by the cubic yard, so the whole job is turning your project into cubic yards. There are only three numbers you need: how long the area is, how wide it is, and how deep you want the topsoil. Here is the calculation we run when a landowner calls and asks how much to order.

Step 1: Measure the area in square feet

Multiply length by width in feet. A patch that is 40 feet by 25 feet is 1,000 square feet. If the area is an odd shape, break it into rectangles, figure each one, and add them together. Close is fine — topsoil is not a precision material.

Step 2: Pick your depth in inches

Two inches for a light topdressing, 3 to 4 inches to establish a new lawn, 6 inches or more to build a garden bed or fix a low spot. Depth is the number that swings your order the hardest, so it is worth deciding before you order rather than guessing short and running out halfway across the yard.

Step 3: Do the cubic-yard math

Use this formula: square feet × depth in inches ÷ 324 = cubic yards. The 324 is not a random number — one cubic yard of topsoil spread 1 inch thick covers exactly 324 square feet. So for a 1,000 square-foot lawn at 3 inches deep: 1,000 × 3 = 3,000, then 3,000 ÷ 324 = 9.3 cubic yards. Round up and order 9.5 to 10 yards.

That is the same math any topsoil calculator runs behind the scenes. If you would rather skip the arithmetic, use the coverage chart below or tell us your dimensions and we will size the load for you.

Topsoil coverage chart: cubic yards by area and depth

This chart shows how many cubic yards of topsoil you need per 1,000 square feet at common depths. Multiply for your own area — if you have 2,000 square feet, double the number in the row; for 500 square feet, cut it in half.

One thing the chart cannot show: topsoil settles. Freshly delivered screened soil fluffs up, then packs down 10 to 15 percent after a few rains. If you order to the exact number and grade it tight, you can come up a little short once it settles. Ordering the next half-yard up covers that.

How much does a yard of topsoil weigh?

A cubic yard of screened topsoil weighs roughly 2,000 to 2,700 pounds — call it 1 to 1.35 tons. Dry, sandy soil is on the light end. The heavier West Michigan topsoil with more clay or organic matter runs toward the top, and soil that is soaked from a spring rain can push past 3,000 pounds a yard because water is heavy.

Weight matters for two practical reasons. First, if you are moving topsoil yourself, a single yard is about 20 to 27 wheelbarrow loads, and it will tax a half-ton pickup — most light trucks are only rated to haul a yard or so of soil safely. Second, weight is what limits a delivery truck. Topsoil almost always hits the legal weight ceiling before the dump bed is physically full.

How many yards of topsoil fit in a dump truck?

Delivery is priced by the load, so it helps to know what a load actually is. A standard tandem-axle dump truck — the workhorse of most West Michigan topsoil deliveries — hauls about 10 to 12 cubic yards of topsoil per trip. A smaller single-axle truck carries 5 to 7 yards. Larger tri-axle trucks can move 15 to 16 yards where roads and driveways allow it.

Here is the local wrinkle: in early spring, Michigan seasonal weight restrictions — what most people call frost laws — cut how much a loaded truck can legally carry on county roads while the roadbed thaws. During that stretch, a truck that hauls 12 yards in July might only be allowed to bring 8 or 9. That is why spring deliveries sometimes cost more per yard and why we plan bigger material jobs around the calendar. We walk through the same seasonal math for aggregate and fill in our fill dirt cost guide for Michigan.

If your project needs more than a truck or two, ordering full loads is almost always cheaper per yard than partial loads, because you are splitting the same trip cost across more material. Our trucking and material delivery service hauls screened topsoil, fill dirt, sand, and gravel across Oceana County and the surrounding counties, and we will tell you straight whether one big load or two smaller ones makes more sense for your access.

How much topsoil do I need for a lawn, garden, or low spot?

A new lawn

Grass roots want 4 to 6 inches of quality topsoil to establish well, but 2 to 3 inches over decent existing ground is the common budget-friendly build. A quarter-acre yard is around 10,000 square feet, so figure roughly 60 yards at 2 inches or 90-plus yards at 3 inches — several truckloads. Most homeowners topsoil only the areas that need it rather than the whole parcel.

Garden and raised beds

Vegetable gardens and raised beds want depth — 6 to 12 inches of good soil for root crops. A 10-by-20-foot bed at 8 inches deep is about 5 cubic yards. For beds, screened topsoil blended with compost outperforms straight fill every time.

Leveling low spots and grading

Filling a settled area, a washed-out swale, or a soft spot in the yard is where measuring gets fuzzy, because depth varies across the hole. Estimate the average depth, not the deepest point. Bad drainage and standing water are usually a grading problem, not just a topsoil problem — our land services crew can regrade the low area and bring in the right material so it drains instead of ponding again next spring.

Food plots

Hunters ask about trucking topsoil onto a food plot, and the honest answer is that it rarely pencils out — a single quarter-acre plot at 3 inches would need close to 100 yards. For most West Michigan plots you are better off amending the soil you have with lime and fertilizer than importing dirt. Where topsoil earns its keep is building up a washed-out plot or capping a cleared spot with poor subsoil. We cover the full playbook on our food plot services page.

Buying topsoil in Oceana County and West Michigan

Once you know your yardage, the next question is what to order and when. A few things worth knowing before you buy topsoil around New Era, Hart, Shelby, and the rest of Oceana County:

• Screened beats unscreened for anything you plant. Screened topsoil runs through a mesh that pulls out rocks, roots, and clumps. It grades clean and gives seed good contact. Save the cheaper unscreened soil for fill.
• Our soils run sandy. A lot of West Michigan ground is sand-based, which drains fast but holds little moisture or nutrients. Blending in compost or ordering a richer screened topsoil makes a real difference for lawns and gardens here.
• Order ahead in the busy season. May through July is peak landscaping season and screened topsoil supply tightens. A few days' notice usually gets you a delivery window that fits your project.
• Mind the frost laws in spring. Early-season weight restrictions mean smaller legal loads on county roads, so deliveries can cost a bit more per yard until the ground firms up.

The fastest way to get an accurate number is to give Aaron a call at (231) 638-8967 with your rough dimensions, or use the contact form. We will figure the cubic yards, quote the material delivered, and haul it to your site.

Frequently asked questions