If you are building a deck that requires longer spans or longer walls, 16-foot boards are a common commercial option. You will encounter two main grades: S4S (Surfaced Four Sides) and S3S (Surfaced Three Sides).
Understanding Standard Dimensional Lumber Sizes and Custom Options
For taller spaces or long rafters, 10-foot and 12-foot boards are widely used. If you are working on a project that requires tight tolerances—such as fine cabinetry or trim work—you will want to seek out S4S boards to ensure consistency and ease of installation.
Standard Dimensional Lumber Sizes The construction industry relies on a standardized range of sizes for framing and structural work. Ordering custom lengths is usually possible at sawmills or specialized lumber suppliers, though this may come at a premium price and longer lead time.
Common Softwood and Hardwood Lumber Dimensions and Sizes
S4S lumber has been planed smooth on all four edges and faces, meaning the dimensions are precise and ready to use immediately. The standard measurements, often expressed as 2x4 or 1x6, do not reflect the actual physical dimensions of the milled board.
More About What sizes does lumber come in
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