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lumber

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lumber

Chiefly US and Canadian
a. logs; sawn timber
b. cut timber, esp when sawn and dressed ready for use in joinery, carpentry, etc.
c. (as modifier): the lumber trade
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Lumber

Timber that is sawn or split in the form of beams, boards, joists, planks, or shingles; refers especially to pieces smaller than heavy timber.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

lumber

[′ləm·bər]
(materials)
Logs that have been sawed and prepared for market.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

lumber

Timber sawn or split in the form of beams, boards, joists, planks, etc., esp. that which is smaller than heavy timber. Also see board, 1, dimension lumber, matched boards, and yard lumber.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Lumber

 

materials (beams, boards, scantlings) produced by sawmilling. Depending on the method of sawing, lumber may be quarter-sawn, flat-sawn, or combined sawn. Lumber with edges finished by sawing is called square-edged, while material without finished edges is called rough. That which has been further processed after sawing in order to smooth the surface or to produce specially shaped surfaces is called dressed. Lumber is used for construction and for making packing containers, furniture, and other articles.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive
Wood, in the form of dimensional lumber, is simply a wonderful material.
"Now it's shifting into a different dimension." Lindner says he has seen a "surge" in the sales of shop-grade plywood and utility-grade dimensional lumber as victims erect storage sheds or temporary housing while they rebuild.
Russian Wood Express will handle softwood dimensional lumber, wood panel products, industrial roundwood, pulp paper and wood furniture.
At Somerville Lumber, in addition to dimensional lumber, the inventory includes 18,900 SKUs.
If, on the other hand, you choose rough-sawn cedar from a specialty lumber yard, you'll save a considerable amount of money (it'll be about half the cost), but the boards will come in a larger size than dimensional lumber. With a little extra math, you can make rough-sawn cedar work.
My lumber was true to size because I milled it myself, but dimensional lumber from a lumberyard would work equally well.
The volume of fibre to feed the operation and the production output of dimensional lumber are being kept confidential for now.
Current repair methods include plywood or oriented strand board (OSB) gussets and dimensional lumber scabs attached with nails, proprietary high-strength screws, through-bolts, or lag screws.
These building materials are made by bonding together perpendicular layers of dimensional lumber, such as 2-by-4s, to create large panels used for walls, floors and roofs
Builders FirstSource also distributes windows, interior and exterior doors, dimensional lumber and lumber sheet goods, millwork and other building products.
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