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How much grass seed for 20,000 square feet?
of tall fescue for a new 20,000 sq ft lawn · 70 lb to overseed
Grass seed for 20,000 sq ft by type
| Grass type | New lawn | Overseeding |
|---|---|---|
| Kentucky bluegrass | 50.0 lb | 25.0 lb |
| Perennial ryegrass | 160.0 lb | 80.0 lb |
| Tall fescue | 140.0 lb | 70.0 lb |
| Fine fescue | 90.0 lb | 45.0 lb |
| Bermudagrass (hulled) | 30.0 lb | 15.0 lb |
Typical rates per 1,000 sq ft: bluegrass 2.5 lb, ryegrass 8 lb, tall fescue 7 lb, fine fescue 4.5 lb, hulled bermuda 1.5 lb. Overseeding uses about half. Follow your seed label if it differs.
Bags needed (tall fescue, new lawn)
| Bag size | Bags |
|---|---|
| 5 lb | 28 |
| 10 lb | 14 |
| 20 lb | 7 |
| 50 lb | 3 |
FAQ
How much grass seed do I need for 20,000 square feet?
For tall fescue, about 140 lb for a new lawn (7 lb per 1,000 sq ft) or 70 lb to overseed. Kentucky bluegrass needs about 50 lb, perennial ryegrass 160 lb.
How many bags of grass seed for 20,000 sq ft?
Of tall fescue: 28 x 5 lb bags, 7 x 20 lb bags or 3 x 50 lb bag(s). Always check the coverage printed on your bag.
When should I sow?
Early fall for cool-season grasses (bluegrass, ryegrass, fescue); late spring to early summer for bermudagrass and other warm-season grasses. Keep the top inch of soil moist until the seedlings are established.
Other lawn sizes: 7,500 sq ft · 10,000 sq ft · 15,000 sq ft · 43,560 sq ft · grass seed calculator · lawn watering
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