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Rotted Rails and Pickets on Allen Fences
Pickets rot from the ground up and rails split where they are nailed. If the posts are still solid, both can be replaced without rebuilding the fence.
Where the Wood Goes First
The bottom few inches of the pickets and the lowest rail fail first, because that is the wood that stays wet.
Look along the base of the fence. Soil, mulch and grass piled against the boards hold moisture on them, and a lawn sprinkler that hits the same boards every morning does the same. The wood turns dark, then soft, then crumbles when pressed.
Rails fail differently. They split along the grain where fasteners go through, and a split rail lets a row of pickets sag or pull away.
What Gets Replaced
- Single pickets. Broken, missing or rotted boards are pulled and new ones fastened to the existing rails.
- A full section of pickets. When most boards between two posts are soft at the bottom, re-skinning the whole section costs little more than doing half of it.
- Rails. A cracked or rotted rail is swapped between two posts. A 6-foot privacy fence usually has three; taller fences may have four.
- A rot board. A horizontal board along the bottom, sometimes called a kickboard, takes the ground contact so the pickets do not. It can be added during a repair and is the one piece meant to be replaced later.
None of this is worth doing on a post that rocks. A contractor should check the posts on either side of the repair first; see leaning fences and posts.
New Wood Next to Old Wood
New pickets are tan or reddish. Twenty-year-old pickets are gray. A patch will show until it weathers, which takes a season or more, or until the whole fence is cleaned and stained one color.
Old and new boards may also differ in width, thickness and the shape of the top. Bring a measurement or a photo of an existing board so the contractor can match it. If your homeowner association requires a certain stain, the patch will need it too.
Staining and sealing covers blending a repair in.Questions About Rotted Rails and Pickets
How much does it cost to replace rotted fence boards?
A 2026 national guide gives $180 to $640 for rot repair and $162 to $463 to replace a panel. The count of boards and rails sets the price.
Can I replace only the bottom of the pickets?
Boards are replaced whole. What can be added is a horizontal rot board at the bottom so new pickets stay off the ground.
What wood are replacement pickets?
Cedar is the common choice for pickets in this area, and treated pine is also sold. Ask the contractor what is being quoted and why.
Should the fence be stained after a board repair?
Staining the whole fence after a repair evens out the color and slows weathering on old and new wood alike. It is optional unless your association requires it.
How Many Boards, and Are the Posts Solid?
With those two answers a fence contractor can tell you whether it is a short visit or a bigger job.
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