Timber
Large-dimension lumber typically 5 inches or greater in its smallest dimension, used for heavy structural applications like posts, beams, and timber-frame construction.
In-Depth Explanation
In the lumber industry, timber specifically refers to structural wood members with a minimum dimension of 5x5 inches, distinguishing it from standard dimensional lumber. Timber framing is a centuries-old construction method using large wooden members joined with traditional mortise-and-tenon joinery and wooden pegs. Common timber species include Douglas fir, white oak, eastern white pine, and western red cedar, chosen for strength, workability, and availability in large dimensions. Modern timber construction also includes engineered products like glulam beams and cross-laminated timber for mid-rise commercial buildings. The term is also used colloquially to refer to forested land managed for wood production.
Usage Example
The post-and-beam barn was constructed using 8x8 Douglas fir timbers connected with traditional mortise-and-tenon joinery.