Total Fabric
45 sq ft
Rolls
1
Est. Cost
$23
Inputs
Result
Bed area = 10 × 4 = 40 sq ft. Two 3 ft strips with 6" (0.5 ft) overlap along 10 ft seam = 5 sq ft extra. Total fabric = 45 sq ft. Pins: 40 interior + 14 edge pins = 54.
Inputs
Result
Circle area = π × 6² = 113.1 sq ft. Three 4 ft strips across 12 ft diameter with 12" overlap at 2 seams = 12 sq ft extra. Total fabric = 125.1 sq ft. One 4×50 ft roll (200 sq ft) covers this.
Inputs
Result
Each bed: 15 × 6 = 90 sq ft. Two 3 ft strips with 6" overlap: 7.5 sq ft overlap per bed. Fabric per bed = 97.5 sq ft. Total for 3 beds = 292.5 sq ft. One 3×100 roll (300 sq ft) just covers it.
You need slightly more fabric than the raw bed area because strips must overlap at seams. For a standard 3-foot-wide roll, a 10×4 ft bed requires two strips with 6–12 inches of overlap, totaling about 42–44 sq ft of fabric for a 40 sq ft bed.
Standard rolls come in 3×50 ft, 3×100 ft, 4×50 ft, and 4×100 ft. Wider 4 ft rolls mean fewer seams in narrow beds. Longer 100 ft rolls cost less per square foot and work best for large projects.
| Roll Size | Coverage | Avg Cost | Best For |
|---|---|---|---|
| 3 ft × 50 ft | 150 sq ft | $12–$18 | Small beds, narrow paths |
| 3 ft × 100 ft | 300 sq ft | $20–$30 | Multiple small beds |
| 4 ft × 50 ft | 200 sq ft | $16–$24 | Standard beds, fewer seams |
| 4 ft × 100 ft | 400 sq ft | $30–$40 | Large projects, best value |
Plan for approximately 1 pin per square foot across the interior, plus 1 pin every 8–12 inches along all edges and seams. A 40 sq ft bed typically needs 60–70 pins total. Pins come in packs of 75 for around $8.
Use 12-inch overlap for high-weed areas, slopes, or permanent installations. Use 6-inch overlap for mulched beds with low weed pressure. The 12-inch overlap uses about 5% more fabric but provides significantly better weed prevention at seams.
Quality woven landscape fabric lasts 10–15 years when covered with mulch. Budget non-woven fabric lasts 3–5 years. UV exposure without mulch cover can degrade fabric within 1–2 years. Proper pin spacing and edge burial extend lifespan.
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Last Updated: Mar 9, 2026
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