How Tree Trunks Are Cut to Produce Wood With Different Appearances and Uses
As wood is one of the most widely-used materials in the world, architects are accustomed to being able to easily obtain sawn wood at a nearby store. However, many of us know little about its manufacturing process and all the operations that determine its appearance, dimensions, and other important aspects of its performance.
© José Tomás Franco
As wood is one of the most widely-used materials in the world, architects are accustomed to being able to easily obtain sawn wood at a nearby store. However, many of us know little about its manufacturing process and all the operations that determine its appearance, dimensions, and other important aspects of its performance.The lumber we use to build is extracted from the trunks of more than 2000 tree species worldwide, each with different densities and humidity levels. In addition to these factors, the way in which the trunk is cut establishes the functionality and final characteristics of each wood section. Let's review the most-used cuts.Parts of a TrunkA trunk is composed mainly of cellulose fibers joined by lignin. From the outside to the inside, we can identify the following parts: Bark: irregular layer composed of dead cells that protects the inner layers. Cambium: the layer next to the bark, where new cells are generated that increase trunk diameter each year. Sapwood: young, clearer and growing wood, with a high water content and little lignin. Heartwood: adult, dark wood, more rigid and hard b...
© José Tomás Franco
As wood is one of the most widely-used materials in the world, architects are accustomed to being able to easily obtain sawn wood at a nearby store. However, many of us know little about its manufacturing process and all the operations that determine its appearance, dimensions, and other important aspects of its performance.The lumber we use to build is extracted from the trunks of more than 2000 tree species worldwide, each with different densities and humidity levels. In addition to these factors, the way in which the trunk is cut establishes the functionality and final characteristics of each wood section. Let's review the most-used cuts.Parts of a TrunkA trunk is composed mainly of cellulose fibers joined by lignin. From the outside to the inside, we can identify the following parts: Bark: irregular layer composed of dead cells that protects the inner layers. Cambium: the layer next to the bark, where new cells are generated that increase trunk diameter each year. Sapwood: young, clearer and growing wood, with a high water content and little lignin. Heartwood: adult, dark wood, more rigid and hard b...
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