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Lumber is referred to as timber in the United Kingdom, Australia, and New Zealand, while in other parts of the world (mainly the United States and Canada) the term timber refers specifically to unprocessed wood fiber, such as cut logs or standing trees that have yet to be cut. Lumber may be supplied either rough-sawn, or surfaced on one or more ...
It applies for civil engineering works from solid timber, sawn, planed or in pole form, glued laminated timber or wood-based structural products, (e.g. LVL) or wood-based panels jointed together with adhesives or mechanical fasteners and is divided into the following parts. EN Eurocode 5 is intended to be used in conjunction with:
As Americans settled the timber-starved Great Plains, they needed material from the lumber-rich parts of the nation with which to build their cities. The burgeoning railroad industry accounted for a fourth of the national lumber demand and required the product to build rail cars and stations, fashion ties, and power trains. [ 12 ]
In the UK there are two basic types of timber 'sawn' and 'prepared' if you buy, for instance, a 2x1 sawn peice of timber you get something close to 2x1 (allowing for tolerance of cut and shrinkage etc, still pretty close to 2x1). if you buy a length of 2x1 prepared you are buying the same size of stock, but one that has been subsequently planed ...
CLS timber is kiln-dried and is white wood. [9] Tree sources include Fir, Pine and Spruce. [10] [6] CLS is planed and fished with eased or rounded edges. [9] [11] CLS timber is commonly graded at two strengths, C16 or C24. [9] C24 is the stronger and is typically more expensive. [10]
A short, straight cut made at a right angle to a curved layout so that sharper-than-normal curves can be cut with a jig saw or band saw. riffler A paddle-shaped rasp. rift sawn Rip-sawing of lumber perpendicular to the grain, often confused with quarter-sawn. ring shake A natural type of split (shake) occurring between the annual growth rings. rip