When is finger-jointed material typically allowed in construction?

Finger-jointed material is often used in construction because it allows shorter pieces of lumber to be joined together to create longer lengths, which can enhance the use of resources and minimize waste. This type of material is particularly suitable for applications where it will be covered by opaque finishes, such as paint or stain. The opaque finish conceals any visual imperfections or the appearance of the finger joints, allowing the jointed wood to blend seamlessly with the overall aesthetic of the finished project.

Utilizing finger-jointed material beneath these finishes can be an efficient choice while maintaining a high-quality appearance. In contrast, open finishes or clear coatings would allow the joints to show, which could detract from the visual appeal of the finished product. This makes opaque finishes the most appropriate context for using finger-jointed materials in construction.