Fence Calculator
100 ft
Materials Needed
Posts:14
Rails:39
Pickets:219
Estimated Cost
$1250.00
Based on wood pricingThe Fence Calculator accurately estimates materials (posts, rails, pickets) and costs for wood/vinyl/aluminum fences. Perfect for DIYers and contractors in North America. Save time and budget effectively.
What Is This? - Fence Calculator
A specialized digital tool that calculates fencing materials and installation costs based on:
- Fence dimensions (length/height)
- Post spacing standards
- Material types (wood/vinyl/aluminum)
- Local building codes
Key Formulas
| Component | Calculation Formula | Example (100ft wood fence) |
|---|---|---|
| Posts | ceil(total_length / post_spacing) + 1 | 100ft/8ft = 14 posts |
| Rails | (posts - 1) × rails_per_section | 13 × 3 = 39 rails |
| Pickets | total_length × 12 / (picket_width + gap) | 1200”/(5.5”+0.5”) = 200 |
| Concrete | posts × 0.5 cubic feet | 14 × 0.5 = 7ft³ |
How to Use
Input Parameters
- Slide to set fence length (10-500ft)
- Select height (4/5/6/8ft)
- Choose material type (wood/vinyl/aluminum)
Get Instant Results
- Material quantities (posts/rails/pickets)
- Estimated cost breakdown
- Visual chart comparison
Export Options
- Printable shopping list
- PDF quote for contractors
FAQs
Q: How accurate are the calculations?
A: ±3% variance accounting for standard waste (based on ASTM F567). Always buy 10% extra materials.
Q: Does it include gate calculations?
A: Yes - specify gate count in advanced settings for adjusted post spacing.
Q: What about sloped terrain?
A: Enable “Slope Compensation” to auto-adjust post heights (stepped/raked options).
Terminology Guide
| Term | Definition | Industry Standard |
|---|---|---|
| Picket | Vertical fence board | 5.5” width (wood standard) |
| Rail | Horizontal support beam | 2×4 treated lumber |
| Post | Structural vertical support | 4×4 pressure-treated |
| Hanger | Metal connector for rails | Simpson Strong-Tie |
| Setback | Distance from property line | Varies by municipality |
Pro Tips
- For vinyl fences: Add 1 extra post per 50ft for thermal expansion
- In high-wind areas: Reduce post spacing to 6ft
- Always check local zoning laws for height restrictions