How to Put Up a Deer Fence | Layout That Stops Deer Cold

A proper seven-foot-tall deer fence is the most reliable way to stop white-tailed deer from destroying a garden, and the full installation takes about two days with basic tools and a helper.

Deer are creatures of routine. Once they find a patch of hostas, tomatoes, or tender shrubs, they come back every night until the food is gone. A fence is the only fix that works every season without chemicals, noise, or constant maintenance. The key is building it tall enough to block a jump — 7.5 to 8 feet — and securing the bottom so deer can’t crawl or push under. This guide covers the layout, materials, and exact steps for putting up a poly mesh deer fence or netting, with spacing and tension rules that keep it standing through wind and weather.

Planning the Fence Line

Before you dig a single hole, walk the boundary of the area you want to protect. Every deer fence starts as a string line between stakes, and that line will be your fence for the next ten years. Give yourself room to work: clear 6 feet of brush and vegetation on both sides of the line, leaving large trees standing so you can use them as natural anchor posts.

Mark every corner and gate opening before you set a single post. Corners need the heaviest bracing — end posts and corner posts should sit three feet deep in the ground, which is about one-third of their total length. That depth keeps the fence tight even when snow piles against it. Plan post spacing based on the fence material:

Tools and Materials You Will Need

Assemble everything before you start so you are not running to the hardware store mid-project. For a poly mesh fence on a half-acre garden, you will need:

• Line posts (T-posts or wood posts, spaced per the table above)
• Corner and end posts (heavy-duty, set in concrete)
• Poly deer fence roll (7.5–8 ft height, with reinforced bottom edge)
• Top tension cable or heavy monofilament line and crimping sleeves
• Bottom monofilament line or tension cable
• Hog rings (pack of 2,500) and a hog ringer tool
• 12-inch ground stakes (kinked) every 5 ft along the bottom
• Concrete mix for corner posts
• String and stakes for layout
• Post driver or auger

For a smaller netting fence, switch to 8-inch zip ties and T-posts driven directly into the ground with a driver — no concrete needed for line posts. Our roundup of the best 8-foot deer fences breaks down the top-rated poly and netting options for different garden sizes.

Setting the Posts the Right Way

The most common newbie mistake is setting posts too shallow. A deer can lean its full weight against a fence, and if the post wobbles, the whole fence becomes a deer ramp. Corner posts need a concrete footing: dig a hole 3 ft deep, pour 6 inches of gravel for drainage, set the post, then pour concrete around it. Shape the concrete cap so water runs away from the wood, and brace the post so it stays perfectly plumb while the concrete cures — concrete sets fast, so get the angle right the first time.

Line posts for poly mesh can go into ground sleeves or be driven directly with a post driver. For deer netting, drive T-posts every 8–10 ft with a driver — wear earplugs, because the noise is loud enough to echo across a neighborhood. Check each post for plumb before moving to the next one.

Running the Top Cable and Tension Lines

Poly mesh fences need a top line to support the fence height and keep it from sagging. Run a monofilament line or light steel cable from corner to corner, threaded through the posts or attached with clips. Use a tightener on every long run so you can pull the line drum-tight after installation. Crimping sleeves lock the monofilament in place at each corner.

A second tension line about mid-height helps the fence resist wind and gives you an attachment point for the mesh. The bottom cable is the last to go on — you will tie it off after the mesh is stretched.

Rolling Out and Attaching the Deer Fence

This part goes fast with two people. Start at the first corner post on the outside of the enclosure and unroll the fence along the line, keeping the reinforced end of the roll facing the ground. The reinforced edge is the bottom — if you install it upside down, the weakest part of the mesh sits at ground level where deer push against it. Leave 3–4 mesh squares extending past the first post so you have material to wrap around the corner.

Attach the mesh at the top first. Use a hog ring to clip the top of the fence to the tension cable next to the first post. Then work your way down the roll, fastening the mesh to each post as you go — hog rings every 3 feet for poly mesh, or zip ties every 12 inches for netting. Keep the roll facing inward toward the protected area so deer pressing against the fence meet a smooth face.

When the first roll ends at the next corner post, cut the mesh so 3–8 squares extend past the post. Wrap the cut end around the post and hog-ring it. For joining two rolls, overlap at least 3 mesh sections and connect every square with a hog ring. This overlap is especially important at the bottom, where deer test the seam most.

Securing the Bottom Against Deer

A deer that cannot jump over a fence will test the bottom. If it can get its nose under and lift, the whole fence becomes a crawl space. Poly mesh fences need a bottom cable that you pull tight — clip it 2–3 mesh squares above the reinforced edge so it pulls the fence flat against the ground. For netting, leave about 6 inches of slack at the bottom, fold it outward, and pin it flat with ground stakes every 5 feet.

Use 12-inch kinked stakes that grip the soil — in sandy or loose soil, switch to long smooth-shaft stakes that drive deeper and hold better. Any gap bigger than a raccoon is a gap a deer will find eventually.

A Note on Bird Safety

Deer netting can trap birds and small animals if it is left slack or poorly tensioned. Chicken wire (welded wire) is a more expensive choice but safer for wildlife. If you use netting, keep it taut and check the bottom regularly for birds that might fly into it during the day. BestDeerFences’ preparation guide covers the full site-clearing and layout process that gives you the best start.

Stretching and Final Tensioning

Once the mesh is attached at every post and the bottom is staked, go back and tighten everything. Walk the entire fence line. The top cable should be taut enough to twang when you pluck it. The mesh should not sag between posts. The bottom should lie flat against the ground with no visible gaps. If you find a sag, pull the mesh tight and add a hog ring to lock it. Tighteners on the monofilament lines let you remove slack without re-tying knots.

Install white warning banners every 10 feet at about 4 feet off the ground so people — especially kids running through the yard — can see the fence line. These also help deer recognize the obstacle from a distance, especially in low light.

Finish With a Tight, Walkable Fence

After the concrete cures (give it 24 hours) and every hog ring is locked, walk the perimeter top to bottom. The fence is done when there is no sag anywhere, the bottom is flush against the ground at every point, and the top cable does not droop between posts. A deer fence well built once lasts a decade — and that is a decade of not replanting every hosta and tomato start.