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What is a rot board on a fence?

February 20, 2020

Posted by Ashley VanderWall

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A rot board, also called a kickboard, is a horizontal board installed along the bottom of the fence panel. Typically a 2x6 or 2x8 piece of wood, it runs along the base of the entire fence panel for a finished look and added protection.

Why do you need a rot board?

A wood fence should be installed at least two inches off the ground to prevent rot and decay caused by moisture absorption from the ground. For many people, this poses a problem. Many homeowners don't like the look of the gap. Others have a critter concern. They don’t want critters entering their yard beneath the fence, or they don’t want their pets getting out. A rot board (or kickboard) solves these problems. A rot board will fill the gap at the bottom of the fence while also protecting your pickets from moisture absorption.

Pressure Treated board on board fence with rot board

Rot boards are also used to “trim out” fence panels for a finished look. Paired with a cap board and trim boards, rot boards can upgrade the look of a basic wood fence. These components can be installed while your new fence is being built or can be added onto an existing fence.

Cedar Board on Board fence with rot board

What type of wood is a rot board made with?

Rot boards are typically made with 2x6 or 2x8 lumber, depending on the desired finished look and the amount of space between the fence and the ground. For the best protection, you’ll want to use lumber that’s treated for ground contact.

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