Sod & Grass Seed Calculator
Measure the lawn once and get either answer: how many rolls and pallets of sod — with the weight, because a pallet is a forklift item — or how many pounds of seed for your grass type.
How to use this calculator
- Measure the lawn, not the lot. Subtract the house, driveway and beds. For an irregular yard, split it into rectangles and circles and add the areas — or pace it off and use the known-area mode.
- Sod: order by the piece, think by the pallet. Sod is cut fresh and sold by rolls or slabs, palletised at about 450 sq ft. The pallet count drives delivery cost and where the truck can set it down.
- Seed: the grass type sets the rate. Tall fescue needs 8 lb per 1,000 sq ft; bermuda needs 2. Using a bluegrass rate for fescue gives you a quarter of the seed you need.
- Overseeding is half rate. Existing grass fills part of the canopy; full rate over it wastes seed and crowds the seedlings.
The formula
Sod: pieces = ceiling( area × 1.05 ÷ piece size ) — 5% covers cuts along edges and curves.
Seed: pounds = area ÷ 1,000 × rate, halved for overseeding.
| Grass | New lawn (lb/1,000 sq ft) | Overseed | Season to sow |
|---|---|---|---|
| Tall fescue | 8 | 4 | Early fall, spring second |
| Perennial ryegrass | 7 | 3.5 | Fall or spring |
| Fine fescue | 5 | 2.5 | Fall |
| Kentucky bluegrass | 3 | 1.5 | Early fall |
| Bermuda | 2 | 1 | Late spring — warm season |
Rates differ because seed sizes differ enormously — bluegrass has around 1.4 million seeds per pound, tall fescue about 220,000. The rate is doing the arithmetic for you.
Worked example
A 50 × 20 ft lawn — 1,000 sq ft — in sod, 10 sq ft rolls:
- With 5% cutting allowance: 1,050 sq ft of sod
- Rolls: 1,050 ÷ 10 = 105 rolls
- Pallets: 105 × 10 ÷ 450 = 2.3 pallets
- Weight: about 1,050 × 4 = 4,200 lb
Two tons of sod for a modest lawn — and it all has to be laid the day it arrives, because sod composts itself on the pallet within 24–48 hours in warm weather. The same lawn in tall fescue seed is 8 lb, which is the entire cost argument between the two, paid for in the months a seeded lawn takes to establish.
Sod logistics people learn the hard way
- It is perishable. Rolled sod heats up and dies from the middle of the pallet outward. Lay it the day it arrives; do not order for the weekend on a Thursday.
- Prepare before it arrives. The soil should be graded, lightly firmed and moist — a pallet sitting on the driveway while you rototill is a pallet dying.
- Stagger the joints like brickwork and butt edges tight without stretching. Gaps dry out and become brown seams.
- Water within 30 minutes of laying, then daily for the first two weeks. First mow when it resists a gentle tug, roughly two weeks.
Frequently asked questions
How many rolls of sod are on a pallet?
Typically 45 rolls of the 2 by 5 foot size, covering about 450 square feet — though pallets range from 400 to 500 square feet by farm, so confirm the coverage when ordering.
How much does a pallet of sod weigh?
Between 1,500 and 3,000 pounds depending on soil type and moisture — call it a ton and a half as a planning figure. It is a forklift or several-person item, and the delivery truck needs somewhere solid to set it down.
How much grass seed do I need per 1,000 square feet?
It depends entirely on the species: about 8 pounds for tall fescue, 7 for perennial ryegrass, 3 for Kentucky bluegrass and 2 for bermuda. Overseeding an existing lawn takes half the new-lawn rate.
Is it cheaper to seed or sod a lawn?
Seed costs a small fraction of sod for the same area — pounds of seed against tons of turf. Sod buys time: an instant, weed-resistant lawn against months of watering, weeding and patchy establishment. On slopes, sod also stops the soil washing away before grass can hold it.
Can sod sit on the pallet overnight?
One cool night, usually. In warm weather the middle of a pallet starts heating and yellowing within 24 hours and can be dead in 48. Schedule delivery for the morning you intend to lay it.