Sod Calculator
Measure once, add for cuts and curves, and order the right number of rolls or pallets the first time.
Sod is perishable. Book delivery for a morning you can lay it the same day, and confirm pallet coverage with your supplier — it runs 400 to 500 sq ft.
How much sod do I need? The arithmetic behind the answer
Every sod order is the same three-step sum. Measure the area you want covered, add a waste allowance for the pieces you will cut off at curves and edges, then divide by whatever your supplier calls a unit — a roll, a slab or a whole pallet. The only reason the question feels hard is that suppliers use different units and none of them are standard. This page does the sum for you and shows the pallet count alongside, because that is the number the delivery truck cares about.
Worked example: a 50 ft by 30 ft back lawn
Start with 50 x 30 = 1,500 sq ft of bare ground. The lawn has a curved bed along one side, so a 10% waste allowance is realistic: 1,500 x 1.10 = 1,650 sq ft of sod to buy. Divide by the coverage of one unit and you have the order.
- Rolls at 10 sq ft: 1,650 / 10 = 165 rolls.
- Slabs at 2.66 sq ft (16 x 24 in): 1,650 / 2.66 = 620.3, rounded up to 621 slabs.
- Pallets at 450 sq ft: 1,650 / 450 = 3.67, rounded up to 4 pallets.
At $6.50 a roll, 165 rolls is ,072.50 in materials before delivery. Order the same lawn with a 5% allowance instead and you need 158 rolls — seven rolls and about $45 less, but far less margin for a bad cut. On a rectangle with straight edges, 5% is fine; anywhere with tree rings, a patio corner or a curved border, take the 10%.
Why the pallet number matters even if you buy rolls
Sod is heavy: a 450 sq ft pallet weighs roughly 1,500 to 3,000 lb depending on soil moisture and cut thickness. Four pallets is a forklift or a boom truck and a solid place to set them down, not something you carry home in a hatchback. Knowing you need four pallets before you call the supplier changes the conversation from "how much sod" to "where does the truck park and how many pallets can it drop in one trip".
Order for the day you can lay it
Freshly harvested sod is a living crop with its roots cut off. It starts breaking down the moment it is stacked, and the middle of a pallet heats up like a compost pile. The rule installers follow is simple: lay it the same day it lands, and never later than 24 hours. In summer heat above 85°F that window shrinks to a few hours.
Practical sequencing: finish all soil prep the day before, take delivery early in the morning, and have the help lined up before the truck arrives. If you must hold sod, park the pallet in shade, water the outside edges lightly, and lay the top layers first — the middle is what cooks.
Ground prep checklist
- Clear and kill: remove old turf and weeds; if you use a non-selective herbicide, allow the label's waiting period before laying.
- Till and amend: loosen the top 4 to 6 in, work in compost if the soil is compacted clay or pure sand.
- Grade: rake level and slope away from the house at about 1 in per 4 ft of run. Finish grade should sit around 1 in below paths and driveways so the laid sod ends up flush.
- Starter fertiliser: a phosphorus-containing starter raked into the surface right before laying gives roots something to reach for.
- Moisten: water the prepared soil so the top inch is damp but not muddy. Sod laid on dry dust struggles to knit.
Watering the first two weeks
The first fortnight decides whether the sod roots or dies. Days 1 to 7: water deeply within 30 minutes of laying, then keep the soil beneath continuously moist — usually two or three short cycles a day in warm weather, enough that lifting a corner shows wet soil an inch down. Days 8 to 14: cut back to once a day and start pushing water deeper. From week three, water every second or third day and stay off the lawn as much as possible. Wait until the sod resists a gentle tug, typically 10 to 14 days, before the first mow, and take no more than a third of the blade height.
Limits of this calculator
The numbers here are a materials estimate, not a quote. Pallet coverage genuinely varies between 400 and 500 sq ft by region and by whether the pallet is loaded with rolls or slabs, so confirm the figure with your supplier and use the custom coverage option if it differs. Delivery fees, installation labour, soil amendments and starter fertiliser are not included, and steep or heavily obstructed sites can push real waste past 15%. When in doubt, round up: one spare roll costs a few dollars, while a second delivery for one missing strip costs a trip fee and a colour-mismatched patch.
Sources & further reading
Frequently asked questions
How many square feet is a pallet of sod?
Most suppliers load 400 to 500 sq ft per pallet, and this calculator uses 450 as the middle. Coverage depends on whether the pallet holds rolls or slabs and how thickly the sod was cut, so a pallet is a delivery unit, not a fixed measurement. Always confirm the number with your own supplier before you order.
How long can sod sit on the pallet before I lay it?
Treat sod as perishable produce: lay it the same day it arrives, and within 24 hours at the absolute latest. Stacked sod heats up in the middle of the pallet and can yellow or rot in a single warm afternoon. If you cannot install immediately, keep the pallet in shade, mist the edges and cut the delay as short as possible.
Is sod or seed the better value?
Seed costs roughly $0.05 to $0.15 per sq ft against $0.35 to $0.85 for sod delivered, so seed is far cheaper on materials. What you buy with sod is time: an instantly usable lawn versus six to twelve weeks of watering, weeding and reseeding thin patches. On slopes prone to washout, sod also holds soil immediately, which seed cannot.
How do I measure an irregular lawn?
Break the shape into rectangles and circles you can measure, run each one through the calculator, then add the results. Ignore small planting beds under about 20 sq ft — the waste allowance absorbs them. For very wavy borders, measure to the widest point and let the 10% allowance cover the offcuts.