Parallam® PSL:  25 Years of Improving Wood-Framed Buildings

Trus Joist® engineered wood product from Weyerhaeuser offers predictable performance and superior strength for homes, multi-family and light commercial buildingsFederal Way, Wash., September 14, 2011 – During the summer of 1986, the movies “Top Gun” and “Ferris Bueller’s Day Off” were box office hits, and teenagers danced to New Wave music. In building technology, Parallam® parallel strand lumber (PSL) was introduced at Expo 86 in Vancouver, British Columbia. The new building material provided high strength, long-length beams for extended clear spans and open floor plans in wood-framed