Number of Panels
Panels = ⌈Perimeter ÷ Panel Width⌉ - Gates
Panels with Waste
Total = Panels × (1 + Waste%)
Number of Posts
Posts = ⌈Perimeter ÷ Spacing⌉ + 1
Fence Area
Area = Perimeter × Height
Disclaimer
Results are estimates. Actual fencing requirements may vary due to gate sizes, post placement, terrain variations, and site conditions. Always consult a professional for final measurements.
Proper planning is essential for any fencing project. Accurate material calculations help prevent costly overruns and delays. This calculator determines the number of fence panels and posts needed based on your total fence perimeter, panel dimensions, and accounts for gates and waste.
The perimeter measurement should include all sides where fencing is required. For irregularly shaped areas, measure each straight section separately and add them together. Remember to account for any gates or openings that won't need panels but will still require posts on either side.
Panel Selection
Choose panel width based on material type and aesthetic preference. Standard wood panels are typically 1.8m (6ft) wide, while metal panels may vary. Wider panels mean fewer posts but may be harder to install on uneven ground.
Post Spacing
Posts are typically spaced to match panel width, but may need to be closer together for high-wind areas or specific fence types. Corner posts and gate posts should be set deeper and may need to be larger diameter for added strength.
Waste Allowance
A 5-10% waste allowance accounts for cutting, damage during installation, and any measurement discrepancies. For DIY projects or complex layouts with many corners, consider using the higher end of this range.
Gates Planning
Gates reduce the number of panels needed but require additional hardware. Standard pedestrian gates are typically 0.9-1.2m (3-4ft) wide, while driveway gates can be 3-4m (10-13ft) or more. Always allow extra clearance for swing.
- Measure twice: Always double-check your perimeter measurements before ordering materials.
- Check property lines: Verify boundary lines with neighbors and local regulations before installation.
- Account for terrain: Sloped ground may require stepped panels or racked (angled) installation.
- Post depth: Posts should be set 1/3 of their length in concrete for stability.
- Local codes: Check local building codes for height restrictions and setback requirements.
- Underground utilities: Call utility locating services before digging post holes.