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Fence Calculator (2026) – Wire & Post Estimator

Expert Guide
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Estimate all materials needed for plot fencing. Calculate barbed wire strands and required number of vertical posts.

Security fencing with RCC posts and barbed wire around a property boundary

⚡ Quick Answer

For a 100m perimeter plot with 4 strands of wire, you need ~57kg of 12 SWG wire and 41 RCC poles. For full site setup and security budgets, visit pro.nirmansutra.com.

🛠️ How It Works

  • •Enter the running perimeter of your land.
  • •Decide how many rows of barbed wire you want (usually 3 to 7).
  • •Select the spacing for vertical posts (standard is 8-10 feet or 2.5-3 meters).
  • •Weights are calculated based on standard SWG density factors used in Nepal.

📐 Calculation Formula

Post Count = (Perimeter / Spacing) + 1
Wire Weight = (Length × Rows) × Density
Technical Diagram for plot-area-calculator

📋 Real-Life Example

Example: 100m plot, 5 rows, 2.5m spacing. • Posts: (100 / 2.5) + 1 = 41 nos. • Wire Length: 100 * 5 * 1.05 = 525 m. • Weight (12 SWG): 525 * 0.135 = 70.9 kg.

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⚠️ Common Mistakes to Avoid

  • ✕Forgetting the extra "Corner Posts" required for L-shaped or irregular plot boundaries.
  • ✕Buying wire based on "local bundles" without checking the actual weight or SWG gauge.
  • ✕Underestimating wastage from tensioning and wrapping the wire around corner posts.

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❓ Frequently Asked Questions

For a 100m perimeter with 5 strands of standard 12 SWG wire, you need approximately 70-75 kg of wire.
The engineering standard for RCC or MS posts is 2.5 to 3 meters (8 to 10 feet) apart for structural stability.
12 SWG is thicker and more durable for permanent plot protection, while 14 SWG is lighter and cheaper for temporary fencing.

Stop Guessing. Start Building.

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Worth NRs. 5,000
NRs. 999 🎯
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