Sod Calculator
Measure each section of your lawn, add the shapes below, and get the sod to order in square feet, square yards, rolls, slabs, and pallets — with cutting waste shown as its own line, never silently baked in.
Enter at least one area above to see how much sod to order.
How this is calculated
- Each shape's area is computed and summed:rectangle = length × width, circle = π × (diameter ÷ 2)²,triangle = base × height ÷ 2. Splitting a lawn into simple shapes and adding them up is the measuring method university extension services themselves teach.
- Cutting waste is added on top and shown separately:order area = measured area × (1 + waste factor).
- Counts are rounded up to whole units:rolls = ⌈order area ÷ roll coverage⌉, and likewise for slabs and pallets.
Data used, with sources
| Value | Used as | Source |
|---|---|---|
| Cutting waste 5–10 % | default 10 %, selectable | Purdue University Extension; Mississippi State University Extension Service |
| standard roll (≈10 sq ft) | 10 sq ft per unit — Typically 18 in × 6 ft or 24 in × 5 ft (9–10 sq ft per roll) — confirm the cut size with your supplier. | Virginia Cooperative Extension; Purdue University Extension |
| slab (18 in × 24 in, 3 sq ft) | 3 sq ft per unit — Slab size varies with the producer’s cutting machine. | Purdue University Extension |
| pallet (≈450 sq ft) | 450 sq ft per unit — About 50 sq yd. Producers commonly stack 450–500 sq ft and some up to 700 sq ft — confirm before ordering. Sod weighs about 35–40 lb per sq yd, so a 450 sq ft pallet runs roughly 1,750–2,000 lb. | Purdue University Extension; Mississippi State University Extension Service; Virginia Cooperative Extension |
Purdue recommends ordering about 10 % extra to cover cutting waste around corners and edges plus measurement error; Mississippi State suggests about 5 % for simpler layouts. Use the high end for lawns with many curves or obstacles.
How to measure your lawn
Break the lawn into simple shapes — rectangles, circles, triangles — measure each in feet, and let the calculator add them up. That is the method Purdue Extension recommends: divide the lawn into several squares, rectangles, or circles, calculate each area, and sum them. For a whole property, it is often easier to measure the full lot and subtract the house, driveway, patio, and planting beds. A tape measure or measuring wheel both work; measure to the nearest foot.
Rolls, slabs, or pallets?
Vendors typically sell sod by the square yard, and it arrives stacked on wooden pallets. For patch repairs and small areas, buying individual rolls (≈10 sq ft) or slabs (18 in × 24 in) from a garden center is simplest. For a full lawn, order by the pallet — but plan the delivery: at 35–40 lb per square yard, a 450 sq ft pallet weighs roughly 1,750–2,000 lb, so have it dropped as close to the work area as possible. Sod is perishable; Purdue Extension advises installing within 24 hours of harvest, so schedule delivery for the day you lay it.
Why order extra
Every cut around a curve, sprinkler head, or bed edge produces offcuts you cannot reuse — Purdue Extension advises against installing pieces narrower than 9 inches or shorter than 18 inches because they dry out and die. That is why the calculator adds a separate waste line: about 5 % extra for a simple rectangular lawn (Mississippi State Extension's guidance), and about 10 % where there are curves, obstacles, or any chance of a measuring error (Purdue Extension's guidance). Running short mid-install is the expensive failure: a second delivery costs more than the overage, and the patch sod may come from a different harvest and green up unevenly.
Common mistakes
- Ordering the bare measured area. With zero overage, every miscut means a gap.
- Letting sod sit on the pallet. It deteriorates quickly; install within 24 hours of harvest.
- Overlapping seams or leaving gaps. Butt pieces tightly, stagger joints like bricks; overlaps and gaps both dry out.
- Under-watering after installation. Purdue Extension lists inadequate irrigation as the most common failure — water immediately after rolling and keep the sod moist until it roots (usually 10–14 days).
- Foot traffic too soon. Keep off the new lawn for three to four weeks until it is anchored.
Frequently asked questions
How many square feet does a pallet of sod cover?
How much does a pallet of sod weigh?
How much extra sod should I order?
How big is one roll of sod?
Related calculators
Sources
- Establishing a Lawn from Sod (AY-28-W) — Purdue University Extension, accessed 2026-07-31.
- Sod Installation and Maintenance (P2951) — Mississippi State University Extension Service, accessed 2026-07-31.
- Sod Source Selection, Installation, Maintenance, and Producers in Virginia (418-040 / SPES-815P) — Virginia Cooperative Extension, accessed 2026-07-31.
Quantities on this page are planning estimates, not engineering advice or a purchase guarantee — product sizes vary by producer, so confirm coverage with your supplier before ordering.