Sod calculator

Sod by lawn area: pallet count, the number of 16×24 in slabs or 2×5 ft rolls, and square yards. Pallet coverage is an input, not a hardcoded 450 ft², because a pallet is a fixed piece count you confirm with the grower.

01 How the math works

Start with the lawn area. For a rectangle that is length × width; for a round area it is π × radius². Add a waste factor for the cuts and trimming, then divide by the coverage of one piece for the piece count, and by one pallet's coverage for the pallet count. Both round up.

The piece size is the coverage of one unit: a 16 × 24 in slab is 2.667 ft², and a common cool-season roll of 2 × 5 ft is 10 ft². The pallet coverage is an input, not a constant, because a pallet is a fixed number of pieces rather than a round area. At 450 ft² the pallet holds 168.75 slabs — so a grower ships a whole count near it, and a 165-slab pallet is really 440 ft². The round number is the marketing; the piece count is the truth.

02 Worked example

Take a rectangular front lawn, 40 ft × 25 ft (12.19 m × 7.62 m) — 1,000 ft² (92.90 m²), or 111.11 yd².

With a 5% waste factor for trimming along the walk and drive, that is 1,050 ft² (97.55 m²). In 16 × 24 in slabs at 2.667 ft² each: ⌈1,050 ÷ 2.667⌉ = 394 slabs. At a 450 ft² pallet: ⌈1,050 ÷ 450⌉ = 3 pallets.

Three pallets is the order. The slab count matters at the grower's end — it is how the pallet is actually built — but you buy and pay by the pallet, and three is what lands on the truck.

03 When this calculator is wrong

The area is exact arithmetic. What it does not know is your grower's exact pallet, how your lawn breaks up, and how fast you can lay it — and those are where the order goes off.

• Pallet coverage is nominal — confirm the piece count. A pallet is a fixed number of pieces, commonly 165–170 of the 16×24 slabs, so its real coverage is 440–453 ft², not the round "450" on the label. Regional standards run 400 / 450 / 503 ft² for slab and roll pallets and 500–700 ft² for big-roll pallets. A calculator that bakes in one number can leave you a whole pallet short. Set the pallet field to what your grower actually ships.
• The 5% waste factor is for a simple rectangle. Lawns with curved beds, tree rings, and lots of edges run closer to 10%, because every curved cut leaves an offcut you can't use. Unlike a cut tile or a board end, a sod offcut can't be banked for the next row — it dries out within hours. The waste factor should scale with how broken-up the lawn is. The exception is one big open rectangle laid in full slabs: there 5% is generous.
• Sod is perishable — you cannot round up and store it. Sod carries only about 1 in of soil on the roots and should be laid within 24 hours of delivery, 48 at the outside, and within a 12–24 hour window in summer heat. An extra "safety" pallet does not help the way a spare bag of mortar does; a pallet left stacked two days in the sun is dead weight. Order tight and book the install for the delivery day.
• A pallet is a delivery item, not a pickup load. A slab pallet runs roughly 1,500–3,000 lb (680–1,360 kg) depending on how wet the sod was cut — a full pallet is over the rated payload of a half-ton truck, and a pallet jack sinks in turf. Plan for the grower to deliver and set it close to where you are working.

04 What to do with the result

Order by the pallet, to the pallet count the calculator gives, after you have set the pallet-coverage field to your grower's real number. Call the grower first and ask two things: how many square feet their pallet actually covers, and the slab or roll size, so the piece count lines up. Then confirm the delivery date and have the ground prepared — graded, raked, and lightly moist — before the truck arrives.

The usual round-up rule still applies to the last pallet, but with a twist: because sod is perishable and sold whole-pallet, the right move is to lay the full pieces first, then cut the partial pallet to finish, rather than opening two pallets at once. If you finish a hair short, a single flat of sod from a garden center covers a small gap — far cheaper than a second delivery for one pallet.

05 Common questions

How much sod do I need?

Measure the lawn area — length × width for a rectangle, π × radius² for a round area — add about 5% for trimming (10% if the lawn has curves and beds), then divide by your pallet's coverage for the pallet count. A 40 × 25 ft lawn is 1,000 ft², about 3 pallets at 450 ft² each.

How many square feet are in a pallet of sod?

It varies by grower and region — commonly 400, 450, or 503 ft² for slab and small-roll pallets, and 500–700 ft² for big-roll pallets. The label is nominal: a pallet is a fixed count of pieces, so a 165-slab pallet is really 440 ft². Confirm the exact coverage with your supplier before you order.

How many pieces of sod are in a pallet?

At 16 × 24 in (2.667 ft²) per slab, a 450 ft² pallet is 168.75 slabs, so growers ship a whole count near it — commonly 165–170. Big-roll pallets hold roughly 50–70 rolls instead. Ask your grower for the piece count, not just the square footage.

How soon do I have to lay sod after it is delivered?

Within 24 hours, and 48 at the absolute outside — in summer heat, within a 12–24 hour window. Sod has only about an inch of soil on the roots and dries fast. If you must wait, unstack it, lay the pieces flat grass-side up in shade, and keep them moist.

How much does a pallet of sod weigh?

Roughly 1,500 to 3,000 lb (680–1,360 kg), depending on moisture — sod cut after rain or irrigation is at the heavy end. That is over the payload of a half-ton pickup, so sod is a delivery item: have the grower set the pallet near the work.