Installing a chain link fence doesn't require a professional crew if you have the right tools, a weekend, and a bit of patience. Whether you're securing a backyard for pets or marking a property boundary, a durable galvanized wire barrier provides reliable security without blocking your view.
Getting professional results means avoiding common amateur mistakes, such as pouring concrete incorrectly or misaligning terminal posts. Let's break down the exact process from layout to final tensioning.
Planning and Material Selection
Before digging your first hole, you need to map out your perimeter and pick the right gauge of wire. Planning prevents costly mistakes, such as accidentally building on neighbor property or hitting underground utilities.
Mapping the Perimeter
Walk your property line and mark corners with wooden stakes. Tie a mason's line tightly between the stakes at about knee height. This string line acts as your exact reference for post placement.
Always call your local utility locator service (like 811 in the US) at least two or three days before digging. Striking a buried gas or electric line creates serious hazards and expensive repairs. Check local zoning laws or homeowner association bylaws for height restrictions and setback rules.
Choosing Materials
Chain link fences rely on a few key components:
- Terminal Posts: Corner, end, and gate posts. These are thicker and heavier gauge steel because they bear the tension of the mesh.
- Line Posts: Intermediate posts placed every 8 to 10 feet to keep the fence upright.
- Top Rail: Horizontal steel tubing that connects the tops of all posts, maintaining structural rigidity.
- Fabric: The galvanized or vinyl-coated wire mesh itself.
Standard residential heights range from 4 to 6 feet. Choose a gauge that fits your needs: lower gauge numbers indicate thicker, stronger wire (typically 9-gauge or 11-gauge for residential use).
Setting the Posts
Post installation is the most critical phase. If your posts aren't plumb and deep enough, the entire fence will sag over time.
Digging Post Holes
Dig holes with a post-hole digger or a motorized auger. Terminal holes should be roughly 8 to 10 inches in diameter and at least 30 to 36 inches deep, depending on your local frost line. Line post holes can be slightly narrower, around 6 to 8 inches wide and 24 to 30 inches deep.
Make the holes wider at the bottom than at the top. This bell shape prevents frost heave from pushing the concrete plug out of the ground during winter freeze-thaw cycles.
Mixing and Pouring Concrete
Set each post into the center of its hole. Use a carpenter's level on two adjacent sides of the post to ensure it's completely vertical.
Pour dry or wet concrete mix directly into the hole around the post. Many DIYers prefer mixing the concrete in a wheelbarrow first, while others pour dry mix into the hole and add water gradually. Tamp the mix down to eliminate air pockets. Crown the top of the concrete slightly so water drains away from the steel post, preventing rust.
Let the concrete cure for at least 48 hours before attaching any rails or tension. Moving too fast will shift the posts while the concrete is still soft.
Attaching Hardware and Rails
Once the concrete has fully cured, you can assemble the skeleton of your fence.
Installing Post Caps and Tension Bands
Slide terminal post caps onto the top of all corner and end posts. For line posts, use loop caps that feature an open channel on top to slide the horizontal rail through.
Slide tension bands onto the terminal posts below the top caps. You'll need one tension band for every foot of fence height (e.g., four bands for a 4-foot fence). Space them evenly and face the flat side outward. Attach the tension bars vertically through these bands later when hanging the mesh.
Securing the Top Rail
Slide the swaged (tapered) end of the first top rail section through the loop cap of the first line post and insert it into the terminal post rail end cup. Connect subsequent rail pieces by sliding them together. Secure them tightly with carriage bolts where necessary, cutting the final piece to length with a hack saw if it doesn't fit cleanly between terminals.
Hanging and Stretching the Chain Link Fabric
Unrolling and tensioning the wire mesh requires a steady hand and a few specialized tools.
Unrolling the Mesh
Stand the roll of chain link fabric on end near a terminal post. Unroll it along the outside of the fence line, leaning it loosely against the posts.
If the roll is too long, you can easily shorten it. Twist one of the vertical wire strands until it unscrews completely from the top and bottom, splitting the mesh into two separate pieces.
Attaching and Tensioning
Attach one end of the mesh to a terminal post by sliding a metal tension bar down through the end link of the mesh. Bolt the tension bar securely to the pre-installed tension bands.
Next, go to the opposite end of the fence run. Slide a tension bar through the mesh a few feet short of the final terminal post. Attach a fence puller or come-along tool to this tension bar and anchor the other end of the puller to the terminal post.
Crank the puller slowly until the fabric is taut. You should be able to squeeze the diamonds of the mesh with your hand, but they shouldn't sag loosely.
While the fence is under tension, attach the mesh to the remaining tension bands on the terminal post. Then, secure the mesh to the top rail and line posts using aluminum tie wires spaced every 12 to 24 inches. Wrap the ties securely around the rail and twist them tight with pliers.
Common Installation Mistakes to Avoid
Avoiding minor shortcuts ensures your fence lasts for decades without leaning or warping.
- Skipping Frost Depth Rules: If you live in an area with freezing winters, shallow post holes will cause the fence to heave out of alignment within a single season.
- Rushing the Concrete Cure: Hanging heavy wire mesh on uncured concrete pulls the terminal posts inward, ruining the entire layout.
- Over-Tensioning the Mesh: Pulling the wire too tight distorts the diamond pattern and makes the fence difficult to secure properly to line posts.
Frequently Asked Questions
How deep should chain link fence posts go?
Corner and gate posts should go 30 to 36 inches deep, while intermediate line posts should go 24 to 30 inches deep. Always dig below the local frost line to prevent shifting.
Do I need concrete for every post?
Yes. Both terminal posts and intermediate line posts require concrete footings to remain stable against wind load and tension from the mesh.
Can I install a chain link fence on a slope?
Yes. You can either use the step method (stepping the fence panels down a slope) or rack the mesh so it slants parallel to the ground contour. Racking works best on gentle slopes.
How do I prevent a chain link fence from rusting?
Choose hot-dipped galvanized steel or vinyl-coated chain link materials. Ensure cut ends or scratches are touched up with zinc-rich galvanizing paint to prevent corrosion at the joints.
