Map the Fence Line
How much composite fencing will you need? Once you’ve measured your yard to determine the length of your fence length, use that figure to help you determine how many fence posts and fence panels you will need. For example, if your composite fencing panels are four feet long, then you’ll need fence posts every four feet for stability. Planning your fence before purchasing materials and digging can help you minimize costs and avoid purchasing excess material. You can also use a composite fencing estimator to help you more accurately calculate the right amount of materials for your project.
Draw your fence on paper, then use stakes and a can of spray paint to mark where the post holes will go.
Digging Post Holes
Once you’ve mapped your fence line, you’ll be able to determine where you will need to dig post holes. The standard is to dig post holes at least 1/3 of the fence height for stability.
Before you start digging, decide where you will mount your composite fence, which will determine the location of your first fence post. If you’re building a fence for your backyard, it’s common to mount it to your home or other stable structure for stability.
Once you've dug holes, pour cement to create footers. Before pouring, use your digging tool to create a curved channel. Then, pour the cement and station your post. This helps prevent water from entering the post and helps the post adhere to the cement.
Install Composite Fencing Panels
It will take a day or two for the cement to cure. Once cured, identify the desired height for your panels and use that as a gauge as to where to connect them. Before installing your panels, please keep ground height in mind. Your new composite fence should be close enough to the ground to keep pets inside and to keep other critters from being able to burrow their way into your yard from the other side of the fence.
Run a String Line and Set the Corners
To keep your new fence straight and level, run a string line from corner to corner. This will be your guide for installing the fence panels. Corner bracing can also provide added stability. If you use corner bracing, you’ll need one diagonal brace for each side of your fence.
Hang Your Gate
If your design includes installing a fence gate, you’ll need heavy-duty screws and a level to install your gate and make sure it’s straight. (Make sure your gate has proper clearance to swing inward or outward!) Once installed, open and close your gate a few times to be sure it’s fully functional.
Building a DIY composite fence is a rewarding task that can increase your property value and add to the beauty (and privacy) of your home’s backyard.