Formula Used
Rectangle perimeter: P = 2 × (Length + Width)
Circle perimeter: P = π × Diameter
Net external fence: F = Perimeter − Existing Fence − Gate Openings
Total project fence: T = Net External Fence + Cross-Fencing + Lane Fencing
Adjusted length: A = T × Terrain Factor × (1 + Manual Adjustment)
Line posts: N = ceil(A ÷ Post Spacing) + 1 − Structural Posts
Wire length: W = A × Strands × (1 + Waste + Overlap)
Concrete volume: V = π × (Hole Radius² − Post Radius²) × Effective Depth × Concrete Posts
Total cost: Materials + Labor + Site Costs + Contingency
How to Use This Calculator
- Select the field shape and measurement unit.
- Enter perimeter dimensions, existing fencing, gates, and cross-fencing.
- Choose the fence type, livestock, terrain, and post material.
- Review or change post, wire, mesh, rail, concrete, and electric options.
- Enter local material prices, labor rates, and site expenses.
- Submit the form, then print, copy, or export the estimate.
Important Planning Notes
Material sizes, brace designs, energizer needs, and livestock recommendations vary by region. Soil, slope, wind, animal pressure, local regulations, and manufacturer instructions can change final requirements.
Use the estimate for budgeting and material planning. Confirm critical dimensions and safety requirements with qualified local suppliers, installers, electricians, or agricultural specialists.