Fence Length in Feet Calculator
Calculate materials needed for your fence project
Calculate Fence Materials
Enter your fence specifications to estimate materials and costs
Material Costs (Optional)
Fence Visualization
How to Use This Calculator
Follow these steps to calculate the materials needed for your fence project:
- Enter the total length of your fence in feet.
- Specify the space between posts (typically 6-8 feet).
- Enter the fence height in feet.
- Choose the number of horizontal rails per section (typically 2-3).
- Enter the picket width and spacing in inches.
- Select the post type and enter the relevant dimensions.
- Optionally enter the cost of each material to get a total cost estimate.
- Click “Calculate” to see the results and visualization.
Understanding Your Fence Components
Posts
Posts are the vertical supports that hold up your fence. They are typically buried in the ground and secured with concrete.
Rails
Rails are the horizontal supports that connect posts and provide a framework to attach pickets. Most residential fences use 2-3 rails per section.
Pickets
Pickets are the vertical boards that create privacy and define the appearance of your fence. The spacing between pickets can be adjusted for more or less privacy.
Concrete
Concrete is used to secure posts in the ground and prevent them from moving. The calculator estimates concrete volume based on standard recommendations.
Fence Calculator Formulas
| Calculation | Formula | Explanation |
|---|---|---|
| Number of Posts | (Fence Length ÷ Post Spacing) + 1 | Always round up to the nearest whole post |
| Number of Sections | Number of Posts – 1 | A section is the space between two posts |
| Post Length | 1.5 × Fence Height | Accounts for 1/3 of the post being underground |
| Number of Rails | Rails per Section × Number of Sections | Total horizontal supports needed |
| Number of Pickets | Fence Length ÷ (Picket Width + Picket Spacing) | Always round up to the nearest whole picket |
| Concrete Volume (Cuboid Post) | 8 × Post Width × Post Thickness × Post Depth | Based on standard hole size recommendations |
| Concrete Volume (Cylindrical Post) | 2π × (Post Diameter)² × Post Depth | Based on standard hole size recommendations |
Tips for Building a Fence
Planning Your Fence
- Check local building codes and homeowner association rules before starting.
- Verify property lines to avoid disputes with neighbors.
- Call 811 to have utility lines marked before digging post holes.
- Consider drainage patterns to prevent water damage to your fence.
- Plan gate locations and sizes based on access needs.
Installation Tips
- Use a string line to ensure your fence follows a straight line.
- Install corner posts first, then use a string between them to align intermediate posts.
- Mix concrete thoroughly and allow it to cure for at least 24-48 hours before attaching rails.
- Use a level to ensure posts are perfectly vertical.
- Apply a weather-resistant finish to extend the life of your fence.
FAQ
Why do I need to add extra material?
Adding 5-10% extra material accounts for waste from cutting, damaged pieces, and measurement errors. Professional builders typically add 10% to ensure they have enough materials to complete the project without delays.
What is the standard spacing between fence posts?
The standard spacing between fence posts is 6-8 feet, depending on your local building codes and the type of fence you’re building. Shorter spacing provides more stability but requires more posts and concrete.
How deep should fence posts be buried?
As a general rule, fence posts should be buried at least 1/3 of their total length. For a 6-foot fence, this means digging a 2-3 foot hole. In areas with freezing temperatures, posts should be buried below the frost line.
How many rails do I need for my fence?
Most residential fences use 2-3 horizontal rails per section. Taller fences (over 6 feet) typically require 3 or more rails for stability. The spacing between rails should be no more than 24 inches.
Can I build a fence myself or should I hire a professional?
Building a fence is a project that many homeowners can tackle with proper planning and basic tools. However, it is labor-intensive and requires careful measurement and alignment. Professional installation ensures proper post setting and alignment but costs significantly more.
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