How to Build a Wooden Privacy Fence

Fences act as the first line of defense for your outdoor privacy and define the true edges of your property. A well-built wooden fence relies entirely on the strength of its structural skeleton; if the posts are plumb and the concrete base is deep enough to resist frost heave, the rest of the build will stay straight and sturdy for years. Building this yourself saves a significant amount in labor costs, but it requires precision during the layout phase. The goal is a uniform, level run of wood that handles wind loads without bowing or warping. Focus on depth and spacing early on, and the final aesthetic work of installing pickets will feel like a smooth victory lap.

1. Mark Every Post Location. Mark the perimeter with stakes and mason's line, ensuring all corners are square. Use marking paint to identify the exact center point for every post, spaced no more than eight feet apart.
2. Dig Deep for Frost Protection. Use a power auger or post-hole digger to excavate holes at least 30 inches deep or below the local frost line. Make the hole three times the width of the post for a stable concrete base.
3. Plumb Every Post Perfectly. Place the pressure-treated 4x4 posts into the holes and add six inches of gravel at the bottom for drainage. Pour quick-setting concrete around the post, adding water as you go, and verify plumb with a level on two adjacent sides.
4. Frame the Structure Strong. Attach three rows of 2x4 rails between the posts using exterior-grade screws or galvanized nails. Position the top rail six inches from the top of the posts and the bottom rail ten inches from the ground.
5. Space Pickets for Symmetry. Starting at a corner, nail the pickets to the rails, ensuring each one is plumb. Maintain a consistent gap using a spacer block to ensure uniform spacing throughout the run.
6. Seal Against Weather. Once the wood has dried completely, apply a high-quality exterior wood stain or sealer. This prevents rot and keeps the wood from turning grey under harsh sunlight.