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On Friday, Weyerhaeuser announced plans to restart production at its factory in Evergreen, Ala., where the company produces Trus Joist TJI joists and. Federal Way, Wash.-based Weyerhaeuser is ...
The Weyerhaeuser Company (/ ˈ w ɛər h aʊ z ə r / WAIR-how-zər) is an American timberland company which owns nearly 12,400,000 acres (19,400 sq mi; 50,000 km 2) of timberlands in the U.S., and manages an additional 14,000,000 acres (22,000 sq mi; 57,000 km 2) of timberlands under long-term licenses in Canada. [4]
Additionally, some manufacturers further cut LVL into sizes for use as chord-members on I-joists. In 2012, North American LVL manufacturers produced more than 1.2 million cubic metres (43.4 million cubic feet) of LVL in 18 different facilities, and in 2013 the production increased by more than 14%.
Invented in 1969, the I-joist is an engineered wood product that has great strength in relation to its size and weight. The biggest notable difference from dimensional lumber is that the I-joist carries heavy loads with less lumber than a dimensional solid wood joist. [1] As of 2005, approximately 50% of all wood light framed floors used I-joists.
As previously noted, less wood is needed to produce a given finished size than when standards called for the green lumber to be the full nominal dimension. However, even the dimensions for finished lumber of a given nominal size have changed over time. In 1910, a typical finished 1-inch (25 mm) board was 13 ⁄ 16 in (21 mm). In 1928, that was ...
The product is manufactured as a 12-by-12-inch (300 mm × 300 mm) or 12-by-18-inch (300 mm × 460 mm) billet in a rectangular cross-section, which is then typically sawn and trimmed to smaller cross-sectional sizes.
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I-beams are still available in US sizes from many Canadian manufacturers. In Mexico , steel I-beams are called IR and commonly specified using the depth and weight of the beam in metric terms. For example, a "IR250x33" beam is approximately 250 mm (9.8 in) in depth (height of the I-beam from the outer face of one flange to the outer face of the ...