Conclusion These Standard Grades form the framework by which all American hardwoods are traded. The minimum clear yield will be select and better with appearance being a major factor. Privacy Policy. Enlist Your Company ico-arrow-default-right. Acquiring Inventory The lumber products assessment does not apply when you, the retailer, acquire the inventory for resale. Networking Make confident infrastructure lumber products definition zones View All.

There are other uses of the term timber. It is often applied when referring to the boat building industry, where boat timbers is a common phrase for the material used in the construction of wooden boats, which includes hardwood such as teak.

Timbers may also go through additional processes to be creosoted or chemically treated to preserve their ability to survive environmental exposure and to prevent rot. A common use of these techniques is to produce wooden railroad ties or for external applications of woods in landscape timbers.

There is also a regional distinction. In places such as the UK, Australia, and New Zealand, the term timber is typically used to describe sawn wood, which would be referred to as lumber in the U. Lumber describes the processed wood products that are commonly used in home construction, and familiar to consumers.

The term dimensional lumber reflects the production of these products into standard sizes which simplify their use in design and construction and reduces the time needed to perform framing.

Lumber may be either rough sawn or finished, the latter being the most common form, available in various softwoods such as pine lumber , fir lumber , and spruce lumber. Rough sawn lumber is commonly used in furniture and cabinet making , where there is a need to do additional cutting to size, while finished lumber is the standard for construction projects. In some instances, the nominal strength or available sizes of lumber are insufficient for the application.

In those cases, engineered lumber , an engineered wood product , may be used to meet the need. These engineered products are used as support beams and joists, for example, and are a structural lumber replacement for more expensive alternatives such as steel.

They allow for the creation of beams and the like in sizes that would not naturally exist from wood sources, and permit the engineering of a product that compensates for the weaknesses imposed by the grain direction of the wood.

While in some areas of the world the terms timber and lumber are synonymous, there are a few distinctions that separate these from each other. Timber is considered by and large as less of a processed wood product and can also refer to intact trees which have not been cut, while lumber is usually thought of as wood that has been cut to standard sizes and sold commercially for construction use.

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