Sod calculator
Sod is sold by the roll, the pallet and occasionally the square yard, and the three do not convert the way people assume. It also has a shelf life measured in hours, which makes over-ordering expensive in a way that mulch is not.
Area
How this is calculated
- Area = length × width.
- With allowance = area × (1 + cut allowance).
- Rolls = ⌈area with allowance ÷ roll size⌉.
- Pallets = ⌈rolls ÷ rolls per pallet⌉. Ordering whole pallets is usually cheaper, but only if you can lay it all in one day.
- Weight at roughly 15 lb per roll of freshly cut sod — a pallet is 700–800 lb.
Worked example
A 40 × 25 ft lawn, 10 sq ft rolls, 5% cut allowance:
- Area = 1,000 sq ft; with allowance = 1,050 sq ft
- Rolls = ⌈1,050 ÷ 10⌉ = 105 rolls
- Pallets at 50 rolls = 3 pallets (150 rolls), which is 45 rolls spare
Three pallets is a lot of spare sod. If the supplier sells by the roll, buy 105; if it only sells pallets, plan the area in 500 sq ft phases so the spare from one phase goes down while it is still fresh.
The installation window is the real constraint
Sod is a live product. In warm weather it heats up on the pallet within 24–48 hours and begins to ferment; by day three it is unusable. That sets a hard limit on how much you can order at once:
- Order for the day you can install, not the day before.
- Lay within 24 hours of delivery in summer, 48 in cool weather.
- Water immediately — within 30 minutes of laying a section, not at the end of the day.
- Do not stack rolls in the sun while working; keep them shaded and damp.
Soil preparation matters more than the sod. Sod laid on compacted subsoil with no topsoil will root at the surface and die in the first dry spell. Four to six inches of loosened soil, raked level, is the minimum.
What the roll count will not cover
- It does not handle irregular shapes. Break the lawn into rectangles and add.
- It does not deduct beds, paths or trees. Subtract those areas first.
- It does not account for slope, where sod is laid differently and staked.
- It does not choose a grass species, which depends on climate, shade and traffic.
Questions people actually ask
How many rolls of sod do I need for 1000 square feet?
About 100 rolls at 10 square feet each, plus 5% for cuts — so 105. If sod is sold by the pallet at 50 rolls, that is three pallets, which leaves a significant amount spare.
How long can sod sit before it dies?
24 to 48 hours in warm weather. Sod is a living product that heats up on the pallet; after two days in summer it begins to ferment and will not establish.
How much does a pallet of sod weigh?
Roughly 700 to 800 pounds for 50 rolls of freshly cut sod. Plan for equipment or two people, and do not carry it across a finished lawn.
Do I need topsoil under sod?
Yes. Four to six inches of loosened soil, raked level. Sod laid directly on compacted subsoil roots at the surface and fails in the first dry period.