What is finger joint board?

Finger joint board is a type of lumber that is composed of small pieces of wood, typically around 2 to 4 inches in length, that are joined together with interlocking fingers. The ends of the pieces are machined to create a precise pattern of protruding fingers that fit together like a puzzle, resulting in a strong and stable joint. Finger joint boards can be made from different kinds of wood, including pine, spruce, fir, and hardwoods. They are commonly used in construction and furniture making, particularly for long, wide pieces that require added strength and stability. The joints are resistant to warping and twisting, making them ideal for flooring, trim, and other applications where consistency is important. Finger joint boards may also be used as an affordable alternative to solid wood products, as they can be made from smaller, lower-quality pieces of wood that would otherwise be unusable.