Calculate how many rolls, pallets, or how much grass seed you need for a beautiful new lawn. Free, instant results.
How to Use This Sod Calculator
Choose sod or grass seed mode. Select your lawn shape — rectangle/square, enter total area directly, or L-shape (where you provide full dimensions and subtract a cut-out corner). Select your roll size (confirm coverage with your local sod farm — it varies by supplier). Add waste factor (10% standard for curves and edges). The calculator shows rolls needed, pallets (rounded up), and estimated cost.
How to Measure, Order, and Install a Sod Lawn
A sod lawn transforms bare dirt into a lush, usable yard in a single weekend. But ordering the wrong amount is a common and costly mistake — too little sod and you're driving back to the farm while the rest of your rolls dry out in the sun; too much and those heavy pallets are sitting in your driveway wilting. Here's how to calculate, order, and install sod like a pro.
Measuring Your Lawn Area Accurately
Grab a 100-foot tape measure, a notepad, and a helper. Measure the longest and widest points — sod is forgiving enough that you don't need survey-grade accuracy, but being off by 20% means a pallet over or short.
- Simple rectangle: Length × width. A 60×40 foot lawn = 2,400 sq ft.
- L-shape: Measure the full bounding rectangle, then subtract the cut-out corner. If the full shape is 60×40 and the cut-out is 25×20: (60×40) − (25×20) = 2,400 − 500 = 1,900 sq ft.
- Curved areas: Divide into smaller rectangles and triangles, calculate each, and sum. For wavy edges, add 10-15% waste — the curve cuts will produce a lot of scrap.
- Circular lawn: π × (diameter ÷ 2)². A 50-foot diameter circle = 3.1416 × 25² = 1,963 sq ft. Waste on circles is high (15-20%) because every edge cut creates scrap.
Understanding Sod Roll and Pallet Sizes
Sod farms use different roll sizes — there is no universal standard. Always ask your supplier for the exact coverage per roll and per pallet before ordering. Common sizes:
- Big rolls (10 sq ft): 2 feet wide × 5 feet long. 50-60 rolls per pallet = 500-600 sq ft per pallet. Heavier (40-50 lbs per roll) but faster to lay — one person can do 500 sq ft in about 2 hours.
- Small rolls (3 sq ft): 1.5 × 2 feet. 150-170 rolls per pallet = 450-510 sq ft per pallet. Lighter (12-15 lbs) and easier to handle on slopes, but more seams.
- Slabs (1.8 sq ft): 16 × 24 inches. 70-75 slabs per pallet = ~130-135 sq ft per pallet. Small and manageable but lots of seams and slow to install. Often used for small patch jobs.
Sod vs Seed: The Real Comparison
- Sod pros: Instant green lawn in 4-6 hours. Weed-free (the dense sod mat suppresses weed seeds). Can be installed almost anytime the ground isn't frozen. Controls erosion on slopes immediately. Cons: Heavy labor (a pallet weighs 2,000-3,000 lbs), limited to the grass varieties your local farm grows, costs 10-20× more than seed.
- Seed pros: Much cheaper ($0.03-0.10/sq ft for seed vs $0.50-1.00 for sod). Huge variety of grass types and cultivars — choose exactly the right grass for your sun, soil, and traffic. DIY-friendly — a push spreader and a rake are all the tools needed. Cons: Takes 8-12 months to fully establish. Weeds can invade during the vulnerable seedling stage. Narrow planting window (spring and fall). Needs consistent watering for 2-3 weeks for germination.
How to Choose the Right Grass Type
- Kentucky Bluegrass (cool-season): The classic American lawn grass. Deep green, soft underfoot, spreads via rhizomes to self-repair bare spots. Needs full sun and consistent water. Goes dormant (brown) in drought without irrigation. Best for: northern US, high-visibility front lawns.
- Tall Fescue (cool-season / transition zone): Deep-rooted (3-6 feet), drought-tolerant, stays green longer than bluegrass. Coarse texture — not as soft under bare feet. Clumping growth habit means it doesn't self-repair. Best for: transition zone (Mid-Atlantic through Midwest), low-maintenance lawns.
- Bermuda / Zoysia (warm-season): The southern standards. Bermuda is aggressive, drought-proof, and self-repairing — but it invades flower beds and goes brown in winter. Zoysia is slower-growing, denser, and more shade-tolerant but slower to establish from sod. Best for: southern US, high-traffic family lawns.
Soil Prep: The Secret to Sod Success
The single biggest reason sod fails is poor soil prep. New construction lots are particularly bad — the topsoil was scraped off and sold, leaving compacted subsoil full of debris. Before ordering sod: remove all rocks, roots, and construction debris, till the soil 4-6 inches deep with a rototiller (rent for $60-80/day), rake in 1-2 inches of compost or topsoil to improve organic matter, grade the soil so it slopes gently away from the house (1" drop per 4 feet minimum), and roll/compact lightly with a lawn roller (filled 1/3 with water) so the surface is firm but not hard-packed. Lay sod within 24 hours of delivery — it's a living product that generates heat and starts composting itself if left stacked. On hot days (85°F+), lay it the same day it's cut.