Fence Panel Calculator
Pre-built fence panels simplify installation — instead of assembling individual rails and pickets, you buy complete panels and mount them between posts. Enter your dimensions for an instant panel and post count.
Fence Panel Calculator
Panel Count Table
Quick lookup by fence length and panel width. Posts = panels + 1 (not counting gate posts).
| Fence Length | 4-ft panels | 6-ft panels | 8-ft panels |
|---|---|---|---|
| 50 ft | 13 panels / 14 posts | 9 panels / 10 posts | 7 panels / 8 posts |
| 75 ft | 19 panels / 20 posts | 13 panels / 14 posts | 10 panels / 11 posts |
| 100 ft | 25 panels / 26 posts | 17 panels / 18 posts | 13 panels / 14 posts |
| 150 ft | 38 panels / 39 posts | 25 panels / 26 posts | 19 panels / 20 posts |
| 200 ft | 50 panels / 51 posts | 34 panels / 35 posts | 25 panels / 26 posts |
| 300 ft | 75 panels / 76 posts | 50 panels / 51 posts | 38 panels / 39 posts |
Add 2 posts per gate opening to all figures above.
Standard Fence Panel Sizes and Prices
| Panel Size (W × H) | Approx. Price | Common Style |
|---|---|---|
| 6 ft × 4 ft | $30–$60 | Wood picket |
| 6 ft × 6 ft (wood) | $50–$90 | Wood privacy |
| 8 ft × 6 ft (wood) | $60–$110 | Wood privacy (most common) |
| 8 ft × 8 ft (wood) | $80–$150 | Wood privacy (tall) |
| 6 ft × 6 ft (vinyl) | $100–$180 | Vinyl privacy |
What Else Do You Need to Buy?
- 4×4 posts: Buy posts that are your fence height plus 2–3 feet (the buried portion). For a 6-ft fence, use 8-ft or 9-ft posts.
- Post caps: Flat or decorative caps protect the post top from water and add a finished look. $2–$15 per post.
- 80 lb concrete bags: 2 bags per post for a standard 8-inch diameter hole, 2 ft deep.
- Gate hardware: Hinges, latch, and cane bolt if you have a gate. $30–$150 for a basic single gate.
- Screws or nails: Galvanized screws or hot-dipped nails to attach panels to posts. About 6–8 per panel attachment point.
- Post hole digger: Rent a two-person auger for $40–$80/day — far faster than a manual digger for more than 10 posts.
Panels vs. Building from Scratch
Pre-built panels and scratch-built fences each have real advantages. Here's how they compare:
- Pre-built panels — faster and easier: No measuring and cutting individual pickets. You set posts, attach panels, and you're done. For a first-time DIYer, panels can turn a 5-day project into a 2-day weekend job. Ideal for standard 6-ft or 8-ft panel widths on level ground.
- Scratch-built — cheaper and more flexible: Individual pickets cost 10–20% less in materials than pre-built panels. You can customize the gap, style (dog-ear, flat, or pointed), and height without being limited to standard panel dimensions. Better for sloped yards where panels need to be cut at an angle.
For a typical 150-foot fence, panels save roughly 1–2 days of assembly time at a material premium of $200–$600 compared to building from scratch. For most DIYers, the time savings is worth it.
Prefer to build from scratch? Get your exact picket, post & rail count.
Use the Full Fence Calculator →Frequently Asked Questions
How many fence panels do I need for 100 feet?
For a 100-foot fence using 8-foot panels: ceil(100÷8) = 13 panels. You may need to cut the last panel. For 6-foot panels: ceil(100÷6) = 17 panels. Always add one extra panel for waste and partial sections.
Do fence panels come in standard sizes?
Yes. Pre-built fence panels are most commonly sold in 6-foot and 8-foot widths in the US. Height options include 4 ft, 5 ft, 6 ft, and 8 ft. Panel widths of 4 feet are also available for tighter spaces. Home Depot and Lowe's stock 6-ft wide panels in most markets.
How many posts do I need for fence panels?
You need one post at each panel join, plus one at each end: posts = panels + 1. Add 2 extra posts per gate opening. Posts are typically spaced to match the panel width (6 or 8 feet).
Are fence panels better than building from scratch?
Pre-built panels are faster and require less skill — ideal for DIYers. Building from scratch with individual pickets costs 10–20% less in materials and allows more customization. For a 150-foot fence, panels save 1–2 days of labor.
How do I handle the last panel if it doesn't fit evenly?
Measure the remaining gap after all full panels are placed. Cut the last panel to fit using a circular saw. Most wood panels can be cut easily. For vinyl panels, request a custom-width panel from the supplier — cutting vinyl panels is more difficult.