Which type of wood is most commonly used for interior framing?

The most commonly used wood for interior framing is Douglas fir due to its strength, durability, and availability. This species is particularly valued in construction because it has a high strength-to-weight ratio, making it an ideal choice for structural applications. Douglas fir also has good dimensional stability, meaning it resists warping and shrinking, which is crucial in framing where structural integrity is essential.

Additionally, Douglas fir is readily available in lumber yards, making it a cost-effective option for builders. Its excellent nailing and adhesive properties also contribute to its popularity for framing, as it holds fasteners well and supports a variety of finishes. This wood is the default choice for many contractors when constructing walls, roofs, and other key components of a building’s structure.

In contrast, the other types of wood listed, while useful for certain applications, are less common in framing. Oak and maple are hardwoods, typically used for furniture, cabinetry, and decorative applications due to their density and aesthetics, rather than for structural framing. Pine, while a softwood like Douglas fir and also used in some construction, generally doesn't have the same strength characteristics as Douglas fir, making it less desirable for load-bearing framing in most situations.