How Much Fence for a 90×120 Yard?
A 90 by 120 foot yard (10,800 sq ft) needs 420 feet of fence to enclose all four sides, or 330 feet if your house covers one 90-foot side.
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Posts
45
Concrete
90
Pickets
1056
Rails
126
Est. Cost
$4,950–$8,250
Fence Footage for a 90×120 Yard
The perimeter of a rectangle is 2 × (width + depth). For 90 × 120, that is 2 × 210 = 420 feet. Most backyard fences only run three sides because the house closes off the fourth: one 90-foot back line plus two 120-foot sides, or 330 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 45 posts, 90 bags of concrete, 126 rails, and 1,056 pickets. Enclosing all four sides raises that to 56 posts and 1,344 pickets.
Cost to Fence a 90×120 Yard by Type
| Fence type | Posts (3 sides) | 3 sides (330 ft) | 4 sides (420 ft) |
|---|---|---|---|
| Wood Privacy | 45 | $4,950–$8,250 | $6,300–$10,500 |
| Vinyl | 45 | $6,600–$11,550 | $8,400–$14,700 |
| Chain Link | 36 | $2,640–$4,950 | $3,360–$6,300 |
| Picket | 45 | $3,300–$5,940 | $4,200–$7,560 |
| Split Rail | 45 | $3,300–$5,940 | $4,200–$7,560 |
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