How to Build a Wood Fence

1. 1

   Verify property lines

   Get a survey or pull the plat before you dig. A fence 6" over the line is a legal problem, not a neighborly one.

2. 2

   Layout with string lines

   Stake corners, run mason line at the top of your future posts, and mark post locations every 6–8 ft. Consistent spacing is what makes a fence look professional.

3. 3

   Dig post holes

   Depth = 1/3 of the above-ground post height, minimum, and below frost line. For a 6-ft fence in a cold climate, dig 36–42".

4. 4

   Set posts in concrete

   Add 4" of gravel at the bottom for drainage. Set the post, brace plumb in two directions, then dry-pour fast-setting concrete around it and add water per the bag directions. Let cure 24 hours before adding rails.

5. 5

   Install rails

   Attach 2x4 rails between posts — top rail flush with post tops, bottom rail 6" off the ground. For 6-ft fences use three rails to prevent picket sag.

6. 6

   Attach pickets

   Use a spacer block for consistent gaps (typically 1/4" for cedar to allow for expansion). Screws over nails — nails work loose within a few seasons.

7. 7

   Seal the fence

   Wait 4–8 weeks for pressure-treated wood to dry out, then apply a semi-transparent oil stain with UV blockers. Recoat every 3–4 years.

Safety note: this guide is educational. Always follow local building codes, pull required permits, and hire a licensed pro for structural, electrical, gas or plumbing work when in doubt.