Rectangle Fence Perimeter Calculator
Table of contents
What is the perimeter of a rectangle fence?Fence perimeter vs. perimeter fenceHow to use rectangle fence perimeter calculatorWhat is a perimeter fence?Why should I have a perimeter fence?How much fence do I need? Fence length calculatorFAQsThe rectangle fence perimeter calculator is a simple and effective tool for measuring the length needed for your fence. Just input the length and width of the area you want the ring fence, and the fence length calculator will tell you how much fence you need. It's that simple!
Wondering what is a perimeter fence or whether it's worth building one? We've got you covered! Learn more below.
What is the perimeter of a rectangle fence?
The rectangle fence perimeter is the total length of the rectangular fence. To calculate the perimeter of a rectangle fence, you need to find the sum of all four sides.
The formula for the perimeter of the rectangular fence is:
P = 2(L + W)
where:
P
— Perimeter;L
— Length of the rectangle; andW
— Width of the rectangle.
What if you only know the area?
It's highly possible that the info you know is the area (e.g., square footage) instead of the length and width of the portion of land. In that case, you'll still need to know at least one of the sides because for the same area, we can have infinite possible perimeters.
Therefore, you'll need to use any of these two formulas if what you know is the area:
P = 2(L + A/L)
P = 2(W + A/W)
💡 Remember to use the proper units, for example:
 To obtain the perimeter in feet (linear footage), input the area in square feet and the length/width in feet. If the area is in acres, you can use our acres to square feet converter.
 To obtain the perimeter in meters, input the area in square meters and the length/width in meters.
Accounting for gate opening
If you want to include a gate opening in your fence, all you have to do is subtract this measurement from the perimeter formula. In other words, the new formula is:
P = 2(L + W)  o
where o
is the gate opening width.
Similarly, you can express this new perimeter in terms of the area A
:
P = 2(L + A/L)  o
P = 2(W + A/W)  o
🙋 In this fence length calculator, we're assuming that the area you want to build a fence around is rectangular. If you want to calculate how much fence you may need for shapes other than a rectangle, please check our perimeter calculator — it covers 13 different shapes!
Fence perimeter vs. perimeter fence
The order of words matters a lot. This tool is a fence perimeter calculator, which differs from a perimeter fence calculator.

Fence perimeter refers to the perimeter of a fence, also known as its total length or linear footage.

Perimeter fence is just a type of fence that circles the perimeter of an area. It usually refers to a fence made with metal grilles, but its material can be of any type, such as wood pickets. Examples of tools that work as wood perimeter fence calculators are the wood fence calculator and the boardonboardfence calculator.
How to use rectangle fence perimeter calculator
Using our rectangle fence perimeter calculator is easy and straightforward. Here are the steps:

Enter the needed length of your rectangular fence; let's say your plot is 30 yards in length.

Input the width of your rectangular fence; assume the width of the plot is 20 yd.

The calculator will instantly compute the perimeter of your fence — you'll need 100 yards of fence to rail your plot.
What is a perimeter fence?
Perimeter fences are boundaries installed around the properties. They can provide privacy, security, or overall additional style for a property. Some popular types and materials for perimeter fencing include:
 Wooden or timber fencing;
 Wooden hoarding;
 Chain link fencing;
 Chain link fencing with flowers; or
 Mesh panel fencing.
Why should I have a perimeter fence?
There are numerous reasons to consider building a perimeter fence if you are debating whether or not to do so. Some of the benefits include:
 Protection;
 Privacy;
 Visual appeal;
 Noise reduction; and
 Boundary demarcation.
How much fence do I need? Fence length calculator
To ensure the success of your fencing project, it's crucial to obtain accurate measurements of your desired fence. So, if you're wondering how much fence you need, our rectangle fence perimeter calculator can help you easily and precisely measure the needed length of your rectangular fence.
But we don't stop there. To take your project to the next level, we recommend using our comprehensive fence calculator. This calculator takes into account various factors that can affect the amount of materials needed for your fence, such as post spacing, post height, and more. With these factors in mind, you can calculate the exact amount of materials needed for your project.
By using this fence length calculator, together with the fence calculator, you can ensure that your fence is built with the correct amount of materials.
What is a linear foot of fence?
A linear foot of fence is just a portion of a fence whose length is one foot (1 ft), which is equivalent to 12 inches. For example, if we have a fence that runs 100 feet, it has 100 linear feet.
We usually say "linear foot" instead of just "foot" to avoid confusion with area measurement units, like the "square foot."
How do I calculate the linear feet of a fence?
This is how you calculate the linear feet of a fence in two simple steps:

Measure each section of the fence (in feet) — For short distances, you can use a measuring tape, while for long ones, you can use web mapping services such as Google Maps. If the fence has multiple sides or runs, measure each side separately.

Add all the lengths together — Sum the measurements of all the sections to get the total length in feet.

And that's it. The previous result is the linear feet of your fence.
How many feet of fence for 1 acre?
The definitive answer to how many feet of fence for 1 acre depends on the shape of the land:

For a squared acre (208.71 ft × 208.71 ft), you'll require 835 feet of fence;

For a rectangular acre whose length is twice the width, you'll need 885 feet of fence;

For a circular acre, you'll need about 740 feet; and

For a rectangular acre of any width and length, use our fence perimeter calculator.
How many feet of fence for a 1/2 acre do I need?
If the land has a square shape, you'll need about 590 ft of fence for a 1/2 acre.
Since acres are a measure of area, the definitive answer to how many feet of fence for 1/2 acre depends on the shape of the land:

For a rectangular piece of land with a length that's twice the width, you need 626.13 ft. This is a 104.35 ft × 208.71 ft area.

For a circular plot, you'll need about 523 feet; and

For a rectangular field of any width and length, use our fence perimeter calculator.