Sod Calculator
Enter up to five lawn areas as rectangles, circles, triangles or known square footage, and this calculator tells you how much sod to order in rolls, slabs or pallets, plus an estimated cost.
Estimate How Much Sod to Buy
Sod Formula
Where:
- \(A_i\) — area of each lawn section, converted to square feet (1 yd = 3 ft; 1 m = 3.28084 ft)
- \(l\), \(w\) — length and width of a rectangular section
- \(d\) — diameter of a circular section
- \(b\), \(h\) — base and height of a triangular section
- \(w\) — waste allowance in percent (covers cutting losses and irregular edges)
- \(C\) — coverage of one pallet in square feet
- \(\lceil \; \rceil\) — rounding up to the next whole roll or pallet, since sod is sold in whole pieces
The formula first adds the areas of all lawn sections, converts everything to square feet, applies the waste allowance, and then divides by the coverage of a single roll or pallet.
Sod – Calculation Example
Example: a rectangular backyard lawn measures 20 ft × 30 ft, sod is bought as 10 ft² rolls, the waste allowance is 10%, a pallet covers 500 ft², and the price is $0.55 per ft².
\[ A_{\text{total}} = 20 \times 30 = 600 \;\text{ft}^2 = 66.67 \;\text{yd}^2 = 55.74 \;\text{m}^2 \]
\[ A_{\text{order}} = 600 \times (1 + 0.10) = 660 \;\text{ft}^2 \]
\[ N_{\text{rolls}} = \left\lceil \frac{660}{10} \right\rceil = 66 \;\text{rolls}, \quad N_{\text{pallets}} = \left\lceil \frac{660}{500} \right\rceil = 2 \;\text{pallets} \]
\[ \text{Cost} = 660 \times 0.55 = 363.00 \;\$ \]
Result: order 66 rolls (2 pallets) of sod for a total estimated material cost of $363.00.
How to use the calculator
- Split your lawn into up to five simple sections. For each one, pick a shape under Area 1 shape (and Areas 2–5): Rectangle, Circle, Triangle, a direct Total area, or "Skip this area" for sections you don't need.
- Enter the dimensions that appear for the chosen shape. Rectangles need Length and Width, circles need Diameter, triangles need Base and Height, and the "Total area" option needs the known Total area in sq ft, sq yd, or sq m. Pick the unit (ft, yd, or m) from the dropdown next to each field.
- Set the Waste allowance — 5–10% is typical; use more for curved beds, trees, or irregular edges.
- Choose the Sod format you buy: standard 10 ft² rolls, small 16 × 24 in slabs, or pallets.
- Check Coverage per pallet against your supplier (most pallets hold 450–500 ft²) and adjust if needed.
- Enter a Price per ft² or per pallet to get a cost estimate, or clear this field to skip the cost.
- Read the results: total lawn area in ft², yd² and m², the area to order with waste, the number of rolls or slabs, pallets, and the estimated cost.
What the sod calculator does
Sod is pre-grown grass harvested in soil-topped strips (rolls or slabs) and stacked on pallets. It gives you an instant lawn, but it is a perishable product: once cut, it should be installed within 24–48 hours. That makes an accurate quantity estimate important — too little means waiting days for another delivery while half the lawn is already laid, while too much wastes money on sod that dries out.
The calculator measures your lawn, adds a waste allowance for cutting and trimming, and converts the result into the units sod is actually sold in: rolls, small slabs, or whole pallets. Working in pallets is often the most practical, because suppliers typically sell by the pallet and a pallet (usually 450–500 ft², often 50 rolls of 10 ft²) is the minimum order at many farms.
The waste allowance is not optional padding — cutting around curves, flower beds, walkways, and sprinkler heads always produces offcuts that can't be reused. A simple rectangle needs only about 5%, while a lawn with curved borders or many obstacles may need 10–15%. If you measure a complex lawn as several simple shapes instead, you keep the waste percentage low.
The cost figure covers the sod material only. Delivery fees, soil preparation, grading, and professional installation (which often doubles or triples the total) are extra. Prices also vary by grass variety, region, and season — check your supplier's per-pallet or per-ft² price and enter it in the Price field for a realistic estimate.
Assumptions and practical tips
- Roll and slab sizes vary. The calculator assumes standard 10 ft² rolls (2 × 5 ft) and small slabs of 16 × 24 in (about 2.67 ft²). If your supplier uses different piece sizes, divide the "Area to order" result by the coverage of one piece.
- Pallet coverage differs by region. Common pallets hold 450, 500, or 600 ft². Always match the Coverage per pallet field to your supplier's number.
- Measure the lawn, not the house. Subtract areas covered by patios, driveways, and planting beds — measuring each grass section separately (which the calculator supports) avoids over-ordering.
- Prepare the soil first. Sod goes on loosened, raked, lightly moistened topsoil. Order the sod only after the site is ready — see the Topsoil Calculator for the amount of soil to add, and the Sand Calculator if you're leveling or amending before laying it.
- Keep the pieces whole between area measurements. If some sections are easier to figure out with a plain area calculation, use the "Total area" option — for reference, see the Square Footage Calculator.
- Water matters more than the numbers. The watering schedule shown in the results is a general guideline; adjust for rainfall, shade, and any local watering restrictions.
Sod formats at a glance
| Format | Typical size | Coverage | Best for |
|---|---|---|---|
| Roll | 2 × 5 ft | 10 ft² each | Most residential lawns; easy to carry |
| Small slab | 16 × 24 in | ≈ 2.67 ft² each | Small patches and DIY jobs without a pallet |
| Pallet | 50 rolls (typical) | 450–500 ft² | Whole-lawn projects; standard farm unit |
Frequently Asked Questions
How do I measure an irregular or curved lawn for sod?
For curved shapes, measure the longest length and the longest width of the whole lawn, multiply them, and treat the result as a rough rectangle — then increase the waste allowance to 10–15%. For better accuracy, divide the lawn into rectangles, circles, and triangles (or drive a stake at the lawn's center and measure to the edge for a circle) and enter each section separately. Measuring in smaller sections keeps the waste percentage low, which usually saves more than the extra measuring time costs.
How many square feet are in a pallet of sod?
It depends on the supplier's roll size: 50 rolls of 10 ft² make a 500 ft² pallet, 60 rolls make 600 ft², and 45 rolls make 450 ft². Because pallet coverage varies by region and farm, 450–500 ft² is the most common range in the US, but a 500 ft² pallet minus a couple of damaged rolls may effectively cover closer to 480 ft² — one reason the waste allowance matters. Always confirm the number with your supplier before ordering.
How much does a pallet of sod weigh?
A typical 450–500 ft² pallet weighs 1,500–3,000 lb (roughly 680–1,360 kg), depending on soil moisture — wet sod cut after rain can be nearly twice as heavy as dry sod. Plan for this at delivery: a full pallet usually won't fit in a pickup bed safely, so many farms offer forklift or truck-mounted forklift placement. Have a drop spot ready on firm ground near where you'll be working.
When is the best time of year to lay sod?
Cool-season grasses (fescue, bluegrass, rye) establish best in early fall or spring; warm-season grasses (Bermuda, zoysia, St. Augustine) do best in late spring to early summer when they're actively growing. Sod can technically be laid almost any time the ground isn't frozen, but extreme summer heat demands daily watering and increases the risk of the sod drying out before installation. Order sod only when the soil is prepared and you have time to lay it the same day.
How long can sod sit after delivery before it goes bad?
Unrolled sod starts decomposing from trapped heat immediately — install it within 24 hours, and within 12 hours in hot weather. Look for yellowing blades, a sour or rotten smell, or slimy, dried-out edges as signs it's gone too long. Stack pallets in shade if possible, and never leave sod in a garage or on a driveway overnight. This is why the calculator helps you order the right amount: a leftover half pallet you can't use is money lost.
Can I lay sod over existing grass or old soil?
No — strip old grass or till it in completely first. New sod needs direct root contact with loosened, raked, level topsoil; laying it over existing grass creates an air barrier and the roots won't take, so the sod dries out from below. Remove debris and rocks, grade for drainage away from the house, and moisten the soil just before installing. Add a starter fertilizer if a soil test suggests it. Also check the Topsoil Calculator if you need to add soil before laying the sod.
My supplier quotes sod per square yard — how do I convert?
One square yard equals 9 square feet, so a 500 ft² pallet covers about 55.6 square yards, and a 100 yd² order is 900 ft². Since some farms still quote per square yard, it's a common source of over- or under-ordering by a factor of nine. The calculator shows the total lawn area in ft², yd², and m² in the results, so you can check the math against your supplier's quote directly before committing to a pallet count.