Field calculator
Sod and seed coverage calculator
Whether you sod or seed, the estimate starts with the area to cover. For sod, the square footage needed is the area plus a waste allowance for cuts around beds and curves, converted to pallets, where a pallet commonly covers about 450 square feet, though it varies by farm. For seed, the quantity is the area in thousands of square feet times the seeding rate in pounds per 1000 square feet. Enter the area, the waste percent, the pallet coverage, and the seeding rate. The seeding rate is the number that swings most: it varies widely by species and by whether this is a new lawn or an overseed, from a couple of pounds to ten or more per 1000 square feet, so use the rate printed on the bag rather than a single default. The result either way is only as good as the soil preparation underneath it, because the grade, the amendment, a loosened seedbed, and firm soil contact are what actually establish a lawn, not the quantity of sod or seed. Confirm the variety, the seeding rate, and the soil amendment with the supplier and a soil test.
Result
Sod and seed coverage: for sod, the square footage needed is the area plus a waste allowance for cuts and curves, converted to pallets (a sod pallet commonly covers about 450 square feet, but it varies by farm). For seed, the quantity is the area in thousands of square feet times the seeding rate in pounds per 1000 square feet. Enter the area, the waste percent, the pallet coverage, and the seeding rate. The seeding rate swings widely by species and whether it is a new planting or an overseed, from a couple of pounds to ten or more per 1000 square feet, so use the rate on the bag rather than a single default. The result either way is only as good as the soil preparation: the grade, the amendment, the loosened seedbed, and good soil contact are what actually establish the lawn, not the quantity. Confirm the variety, the seeding rate, and the soil amendment with the supplier and a soil test.
anvilfield.com/calculators/sod-seed-coverage-calculator · Free field calculators and FieldOS. A planning estimate, verify against the code, the manufacturer, and the engineer of record.
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Sod & seed FAQ
How do you install sod?
Prep the soil first: test and correct pH, kill weeds, till the top 4 to 6 in, grade for drainage, and rake in a phosphorus starter. Then lay fresh sod against a straight line, stagger the seams like brickwork and butt them tight, roll it into the soil, and water deeply right away.
How often do you water new sod?
Soak it deeply the day it goes down, then keep it wet for about two weeks, often two to three times a day in warm weather so the soil under the sod never dries out. After it roots, taper to fewer, longer, deeper waterings, and water in the morning to avoid fungus.
When can you mow new sod?
Mow after the sod has rooted and passes the tug test, commonly two to three weeks, never before. Let it dry enough to hold the mower, set the deck high, use a sharp blade, and take no more than one-third of the blade height. Bring tall sod down over several mowings, not one scalping pass.
Why is my new sod dying?
Most new sod dies from too little water in the first two weeks: it browns at the seams, shrinks, and lifts dry. Overwatering does the opposite, growing fungus and rot. Sod that peels up with no roots never made soil contact. Brown but still anchored may be dormant, not dead, and the tug test tells them apart.
How long does new sod take to root?
Sod usually puts down shallow roots in about 10 to 14 days and anchors firmly in two to three weeks, with full rooting taking two to six weeks depending on season and species. Check with the tug test: pull a corner gently, and if it resists instead of peeling up, the roots have grabbed.