Plot Boundary & Fencing Cost Calculator
Enter the sides of your plot to get its perimeter and area, then the posts, wire or mesh and total cost to fence it
Plot shape
ft
ft
ft
ft
Fence type
ft
ft
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Prices
Enter local prices. Leave anything you do not need at 0.
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Result
Perimeter
300 ft
Plot area
5,000 sq ft
11.48 satak · 6.94 katha · 0.347 bigha · 0.115 acre
Length to fence (perimeter minus gates)
290 ft
Posts needed
31 pcs
4 corner · 25 line · 2 gate
Barbed wire needed
1,523 ft
Cost breakdown
Posts
৳15,500
Wire / mesh / wall
৳12,180
Gates
৳8,000
Labour
৳11,600
Total fencing cost
৳47,280
Cost per running foot: ৳163.03
How it works
- Perimeter = sum of all sides
- Four-sided area = average of North and South × average of East and West; triangle area uses Heron's formula
- Posts = fence length ÷ post spacing (rounded up), plus two extra posts for each gate
- Barbed wire = fence length × rows of wire × (1 + wastage); mesh = fence length × height × (1 + wastage)
About plot fencing
Fencing a plot is usually the first thing a buyer does after registration, both to mark possession and to keep the boundary from creeping. The cost depends almost entirely on the perimeter, not the area, so a long narrow plot costs far more to fence than a square plot of the same size.
This calculator takes the four sides as written in the deed or survey sketch, works out the perimeter and the area in square feet, satak, katha and bigha, and then estimates the posts, wire or mesh, gates and labour. Enter your local prices to get a budget figure.
Common fence types
- Barbed wire on concrete or wooden posts: the cheapest option for agricultural and vacant land. Four to six rows of wire on posts set 8 to 10 feet apart is typical.
- Chain-link or welded mesh: better security for residential plots and poultry or fish farms. Priced by the square foot of mesh, so height matters.
- Brick boundary wall: the most durable and most expensive. Priced per running foot for a given height, usually including pillars every 10 feet.
Tips
- Confirm the sides against the latest survey map before buying material. A few feet of error on each side adds up over the perimeter.
- Corner and gate posts take more strain. Use a thicker post or brace them with a diagonal strut.
- Add 5% to 10% wastage for wire overlaps and cutting, and more for mesh if the ground is uneven.
❓ Frequently asked questions
How do I calculate the perimeter of my land?
Add the lengths of all sides. A plot with North 100 ft, East 50 ft, South 100 ft and West 50 ft has a perimeter of 300 feet.
How many fence posts do I need?
Divide the fence length by the post spacing and round up, then add two posts for each gate. A 300 ft boundary with posts every 10 ft and one gate needs about 32 posts.
How much barbed wire is needed for 1 bigha of land?
It depends on the shape. A square bigha (14,400 sq ft) has sides of 120 ft and a perimeter of 480 ft. With 5 rows of wire and 5% wastage that is about 2,520 ft of barbed wire.
Does the calculator include the gate in the fence length?
No. Gate openings are subtracted from the perimeter, so wire, mesh and labour are only counted for the length that is actually fenced. Gates are priced separately.
How is the area of a four-sided plot calculated?
Using the standard survey method: the average of the North and South sides multiplied by the average of the East and West sides. For plots with very uneven sides, use the land area calculator with diagonals for a more precise figure.