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Installing Vinyl Fencing on Concrete: A Comprehensive Guide

Lowe's Editorial Team

By Lowe's Editorial Team
Published June 28, 2024

Setting up vinyl fencing on concrete is a great way to define your property boundary.This step-by step guide on how to install a vinyl fence on concrete will help bring your vision to life.

Tools and Materials

Key Considerations Before You Begin

Consider a few important factors before buying or attaching the final fence to concrete.

Purpose and Design

Vinyl fences serve multiple purposes. They enhance privacy, define property boundaries and come in multiple design options that include classic picket styles, solid panels for complete privacy, and decorative lattices. Choose a design that aligns with your vision and complements your landscape.

Local Regulations and Permits

Check your local zoning laws before deciding the size and placement of your fence. Look for easements in your deed to ensure there are no restrictions. Asking an inspector to check other details and getting a permit if required may be a good idea.

Good to Know

Make sure to call 811 before beginning any excavation to check for underground utilities.

Quality of Materials

High-quality vinyl fence panels and posts are durable. They are built to withstand various weather conditions. Consider the thickness of the vinyl material and look for fences with UV inhibitors to prevent fading over time.

Maintenance Requirements

Vinyl fences are known for being low maintenance. Despite being so convenient, occasional cleaning may be necessary. Clean your vinyl fence with an all-purpose outdoor cleaner every month to remove dirt and debris. It's important to understand the care required for longevity of your vinyl fencing on concrete.

Steps for Attaching Vinyl Fences to Concrete

Let's delve into the foundational steps of installing vinyl fencing on concrete.

Planning and Preparation

Before starting any of the actual work, ensure that you determine the layout of your vinyl fence. Gather your wooden stakes, string, a tape measure, a level and a marker. You can use graph paper or a design software for this step.

Create a Plan for Your Fence
Note the desired post locations and gate positions to visualize the layout of your fence. The width of your fence panels play a role in deciding the distance between the panels. The manufacturer’s instructions can also guide you with post placement and spacing. Finally, use a string line or chalk line to mark the location of the fence panels on the concrete.

Set the First Post
To set the first post start by measuring the distance from an existing structure or property line. Mark it using a wooden stake and marker. Place the stake firmly into the ground.

Establish the Line
Place a second wooden stake a few feet away from the first stake for the next fence post. Attach a string tightly between the two stakes. This will ensure that it is level and taut. This attached string will establish the line along which the rest of the fence posts will be positioned.

Mark the post locations
Measure the distance between the first and second stakes. Mark the subsequent post locations along the line using the tape measure and stakes. Repeat until you have marked all the locations along the concrete surface. Adjust the string and stakes to maintain alignment and levelness.

Drill the Concrete Surface

Before you attach your vinyl fence to the concrete, you will need to dig holes into the concrete for the fence posts.

Secure the Concrete Surface
Use duct tape to secure a small piece of wood over the spot where you will drill the hole if the concrete surface is smooth. This is to ensure that the drill bit doesn’t slip as you start drilling.

Insert the Masonry Drill Bit
Secure the masonry drill bit that matches the size of the holes you need for the fence posts to the hammer drill or post hole driller or power auger.

Start Drilling
Position the drill perpendicular to the concrete surface at the marked spot. Keep drilling till you reach the depth required for your fence post anchors. Dig a hole with a diameter of 9-12 inches for 4-by-4 inch fence posts or 12 inches for 5-by-5 inch posts. The depth of the hole should be approximately one-third of the length of the post. For example, if you have a 6-foot tall fence post, the hole should be at least 2 feet deep. Consider digging the hole slightly deeper to add a few inches of gravel at the bottom. This can improve drainage and provide extra stability.

Tip

Consider using a shop vacuum or brush to remove the concrete dust from drilled holes for better adhesion.

Securing the Fence Posts

Securely anchor your fence posts into the concrete for a stable and long-lasting fence.

Insert the Anchor into Concrete
Choose an anchor depending on the size and weight of your fence. Use post anchors made of galvanized steel. These slide over the top of the post and get positioned at the base, parallel to the fence line. Insert the anchor into the hole you drilled. Ensure that it is flush with the surface of the concrete. You can check the vertical alignment of the posts using a level.

Secure with Concrete
You may need to add concrete near the base of the vinyl fence post to provide additional stability. Prepare the concrete by mixing sand, pea gravel, and Portland cement. Fill to ground level, leaving some space on the surface for settling. Smooth the surface of the concrete around the posts using a trowel. Make any adjustments before the concrete sets.


Tip

If your fence anchor requires adhesive, make sure you use a product that's rated for outdoor use and can tolerate exposure to the elements.

Allow for Curing Time
This usually takes 24 to 48 hours, but go through the manufacturer’s instructions for a better idea. Avoid putting pressure on the post to let it set properly.

Tip

Temporary bracing may be needed to keep the post in place until the concrete is fully cured. This can help prevent the post from shifting while the concrete sets.

Installing the Vinyl Fence Panels

Here is the last and final step of attaching vinyl fencing on concrete.

Mark the Panel Placement
To properly align the panels, ensure that you measure the distance between each secured post and mark the locations on the concrete.

Attach Bottom Brackets
Start by attaching bottom brackets to the posts using screws or nails at the first panel location. These will hold the bottom rail of the vinyl fence panel. If your fence panels have pre-drilled holes for the brackets, align them for ease of installation.

Place the Panel
Carefully slide the bottom rail of the vinyl fence panel into the bottom brackets. Make sure the panel is level and rests securely on the brackets. Secure the panel to the bottom rail brackets with screws or other fasteners.

Attach Top Brackets
These brackets will hold the top rail of the vinyl fence panel. Align the brackets with the top rail and secure them to the vinyl fence posts with screws. Slide the top rail of the panel into the top brackets. Ensure the top rail is level and secure with screws or other fasteners.

Repeat and Check Alignment
Continue this process for each vinyl fence panel. Once they are installed, check the alignment to ensure a straight and evenly spaced fence.

Finishing Touches
You are almost done with attaching your vinyl fence to the concrete. Some tweaks might be needed to ensure the perfect vinyl fence. When installing the last panel, use a saw to cut it to fit better if needed. Double check all the panels and you are good to go. With proper care, your new fence will enhance the beauty of your outdoor space for years to come.