How Much Fence for a 80×120 Yard?
A 80 by 120 foot yard (9,600 sq ft) needs 400 feet of fence to enclose all four sides, or 320 feet if your house covers one 80-foot side.
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Posts
43
Concrete
86
Pickets
1024
Rails
120
Est. Cost
$4,800–$8,000
Fence Footage for a 80×120 Yard
The perimeter of a rectangle is 2 × (width + depth). For 80 × 120, that is 2 × 200 = 400 feet. Most backyard fences only run three sides because the house closes off the fourth: one 80-foot back line plus two 120-foot sides, or 320 feet. If your fence returns to the house partway along the side, measure that actual run instead.
For a wood privacy fence on three sides you'd buy about 43 posts, 86 bags of concrete, 120 rails, and 1,024 pickets. Enclosing all four sides raises that to 53 posts and 1,280 pickets.
Cost to Fence a 80×120 Yard by Type
| Fence type | Posts (3 sides) | 3 sides (320 ft) | 4 sides (400 ft) |
|---|---|---|---|
| Wood Privacy | 43 | $4,800–$8,000 | $6,000–$10,000 |
| Vinyl | 43 | $6,400–$11,200 | $8,000–$14,000 |
| Chain Link | 35 | $2,560–$4,800 | $3,200–$6,000 |
| Picket | 43 | $3,200–$5,760 | $4,000–$7,200 |
| Split Rail | 43 | $3,200–$5,760 | $4,000–$7,200 |
Material estimates with one walk gate. Professional installation typically adds $5–$15 per foot.
Other Yard Sizes
Recommended Materials
Pressure-Treated Fence Post 4×4×8
Ground-contact rated, ideal for all fence types.
$12 – $18
Cedar Dog-Ear Picket 1×6×6
Naturally rot-resistant, smooth on one side.
$3 – $6
Quikrete 60 lb Fast-Setting Concrete
Sets in 20-40 minutes. No mixing required.
$5 – $7
Post Hole Digger – Fiberglass Handle
Heavy-duty clamshell digger for clean holes.
$35 – $55
Simpson Strong-Tie Fence Bracket
Galvanized L-bracket for rail-to-post connections.
$4 – $8
Decorative Post Cap 4×4
Copper-top cap, fits standard 4×4 posts.
$5 – $12