Calculate exactly how many posts, rails, pickets, and bags of concrete you need for any fence project. Supports wood, vinyl, and chain link — with full cost breakdown and material shopping list.
Building a fence is one of the most rewarding outdoor projects — it adds privacy, security, property value, and curb appeal. But the material list can be surprisingly complex. Posts, rails, pickets, concrete, screws, caps, and hardware all need to be calculated accurately. This guide covers every fence type and walks you through professional-level estimation.
| Fence Type | Material $/ft | Installed $/ft | Lifespan |
|---|---|---|---|
| Wood Privacy (Cedar) | $12–$20 | $20–$35 | 15–20 yr |
| Wood Privacy (Pressure-treated) | $8–$15 | $15–$25 | 10–15 yr |
| Wood Picket | $5–$12 | $12–$22 | 10–20 yr |
| Vinyl Panel | $15–$30 | $25–$45 | 20–30 yr |
| Chain Link (4 ft) | $7–$12 | $12–$22 | 20+ yr |
| Aluminum | $20–$35 | $30–$55 | 30+ yr |
| Wrought Iron | $25–$50 | $40–$75 | 50+ yr |
Posts must be set deep enough to resist wind loads and frost heave. The standard rule is 1/3 of total post length underground. For a 6-foot fence, use 8-foot posts with 24 inches buried. In cold climates where the frost line is below 24 inches, posts should extend below the frost line — typically 36–48 inches in northern states. Post holes should be 3 times the post width: a 4×4 post needs a 12-inch diameter hole.
Gates require additional hardware and slightly different construction. A standard gate needs 2 heavy-duty hinges, 1 latch, and a cross-brace for structural support. Gate posts should be 6×6 instead of 4×4 to handle the extra stress of a swinging gate. Standard gate widths: 36–42 inches for pedestrian, 10–12 feet for vehicle/driveway. Double gates should have a drop rod to secure the stationary side.
Pressure-treated pine is the most affordable option ($8–$15/linear foot) and resists rot for 10–15 years. Cedar is naturally rot-resistant, doesn't need chemical treatment, and weathers to an attractive silver-gray ($12–$20/ft, lasting 15–20 years). Redwood is premium and beautiful but expensive ($20–$30/ft). For posts specifically, use pressure-treated rated for ground contact (look for UC4A or UC4B rating) regardless of what you use for rails and pickets — untreated posts will rot within 3–5 years.