Terms of the Trade: What is Shiplap Lumber?

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Shiplap boards interlock to create a smooth, level surface. Their affordability and ease of use makes them popular for a wide range of construction projects. A rabbet in opposing sides of the board allows the shiplap to form a firm bond or seal when set up in a section or panel.

Shiplap surfaces are easy to install and generally require very little maintenance, which makes them great for building cabins, ranch houses, and other rustic structures, especially those with large, open spaces.