Welded Wire Fence Calculator: How Much Fencing Do I Need?

🚧 Welded Wire Fence Calculator

Calculate the exact amount of fencing, posts, and hardware clips needed for your project

Quick Presets
⚙️ Calculator Settings
✅ Your Fencing Requirements
📋 Wire Type Reference
14 AWG
Standard Welded Wire
16 AWG
Light Welded Wire
12 AWG
Heavy Duty Welded
16 AWG
Deer Fence Grade
19 AWG
Hardware Cloth
20 AWG
Poultry Netting
14 AWG
Field Fence 2x4
14 AWG
Galvanized Welded
📐 Post Spacing vs. Posts Needed
Perimeter 6 ft Spacing 8 ft Spacing 10 ft Spacing 12 ft Spacing Perimeter (m)
40 ft8 posts6 posts5 posts4 posts12.2 m
80 ft14 posts11 posts9 posts8 posts24.4 m
120 ft21 posts16 posts13 posts11 posts36.6 m
200 ft34 posts26 posts21 posts18 posts61.0 m
300 ft51 posts38 posts31 posts26 posts91.4 m
400 ft68 posts51 posts41 posts35 posts121.9 m
600 ft101 posts76 posts61 posts51 posts182.9 m
📦 Roll Coverage by Fence Height
Roll Length 2 ft Height 4 ft Height 6 ft Height 8 ft Height Roll (m)
50 ft roll100 sq ft200 sq ft300 sq ft400 sq ft15.2 m
100 ft roll200 sq ft400 sq ft600 sq ft800 sq ft30.5 m
150 ft roll300 sq ft600 sq ft900 sq ft1,200 sq ft45.7 m
200 ft roll400 sq ft800 sq ft1,200 sq ft1,600 sq ft61.0 m
📏 Common Project Estimates
Project Dimensions Perimeter Fence Needed Posts (8ft) Rolls (100ft)
Small Garden10 x 10 ft40 ft44 ft (+10%)61
Raised Bed Area20 x 20 ft80 ft88 ft (+10%)111
Chicken Run30 x 15 ft90 ft99 ft (+10%)131
Dog Kennel40 x 20 ft120 ft132 ft (+10%)162
Backyard50 x 50 ft200 ft220 ft (+10%)263
Orchard60 x 60 ft240 ft264 ft (+10%)313
Deer Perimeter100 x 60 ft320 ft352 ft (+10%)414
Large Property200 x 100 ft600 ft660 ft (+10%)767
💡 Planning Tips
✔ Tip 1 — Always measure the perimeter, not area: Welded wire fencing covers the perimeter (linear feet) of your enclosure, not the square footage inside. Measure all four sides and add them together before calculating rolls and posts.
⚠ Tip 2 — Subtract gate openings from wire needed, not posts: Deduct gate opening widths from your total fencing needed (since wire won't span that gap), but you still need posts on each side of every gate opening. Corner and gate posts should be set deeper — at least 1/3 of their total length underground.

To determine the amount of welded wire needed for a project, you must first determine the perimeter of an area to be fenced in. The perimeter of an area is the distance around the outside edge of the area. To find the perimeter of an area, you must calculate the perimeter of the area rather than the square footage of the area.

If you calculate the square footage of the area, you wont have enough welded wire to complete the fence. For example, if the garden are 20 feet long and 20 feet wide, the area of the garden is 400 square feet, but the perimeter of the garden is 80 feet. In this example, you must buy 80 feet of welded wire to complete the fence for the garden.

How Much Welded Wire Do You Need for a Fence

The shape of the area to be fenced in will dictate the method used to calculate the perimeter. If the area is in the shape of a rectangle, you will need to calculate the length and the width of the area and multiply that number by two. If the area to be fenced in is in the shape of a circle, you must calculate the circumference of the circle because the circumference is the perimeter of a circle.

If the area to be fenced in is of an irregular shape, such as a triangle or an area that will go around a tree, you must measure each side of that area and add each measurement to find the total perimeter of that area. Once you have calculated the total perimeter of the area to be fenced in, you must subtract the width of any gate that you will construct in that fence because welded wire does not cover the gate openings. The height of the welded wire fence is another critical measurement to determine how much wire you need to purchase.

If the fence is to be taller, you will need more welded wire because the total surface area of a taller roll of welded wire is more greater than a fence that is shorter in height. For example, if you have to fence in a perimeter of 100 feet, a roll of welded wire that is four feet in height will provide 400 square feet of fencing coverage, but a roll of eight feet in height will provide 800 square feet of fencing coverage. The height of the welded wire fence will depend on the type of animal you wish to keep out of your fence.

A fence that is only two feet in height may keep small weeds from entering your garden, but a fence that is six or eight feet in height are necessary to keep deer from entering your garden. Another factor that will play a role in determining the amount of welded wire to purchase is the gauge of the welded wire. The gauge of the wire is the thickness of that wire.

If the gauge is lower, it means the welded wire is thicker. If the fence is for light tasks, such as poultry fencing, you can purchase 16 gauge welded wire. If the fence is for heavy animals, such as goats or pigs, you should make the fence of 12 gauge welded wire.

Since welded wire that is of a higher gauge is thicker, it will weigh more. Therefore, you must consider the weight of the welded wire when purchasing it for your project. When planning your fence with welded wire, you also need to plan for the fence posts.

Fence posts should be equally spaced. For fences with welded wire, the standard distance between fence posts is eight feet. However, fence posts is necessary at every corner and gate.

Additionally, you should bury the corner and gate posts deeper into the ground than the fence posts in the middle of the fence. Fence clips are necessary to attach the welded wire to the fence posts. Approximately two fence clips is needed for each foot of fence.

It is also helpful to purchase extra welded wire for your fence. If you buy extra welded wire, you will have enough to account for any mistake that might occur while building the fence. Additionally, buying extra wire will provide you with extra wire to wrap around the corners of the fence.

If you do not purchase extra welded wire, you may run out of wire before you have completed the fence. Finally, another factor to consider when building your fence using welded wire is the terrain and the environment where you will build the fence. If the terrain is sloped, you may need more welded wire to reach the ground.

If the area where you will build your fence is wet, you should purchase galvanized welded wire because the galvanized coating will protect the fence posts from rusting. If the fence is for chickens, you may need to bury the bottom of the welded wire into the ground because chicken predators will dig under the fence. By using these factors to determine how much welded wire you need to purchase, you can be sure that you have the correct amount of wire for your fence project.

Welded Wire Fence Calculator: How Much Fencing Do I Need?

Leave a Comment