Use beams, headers, and columns made from Weyerhaeuser's Parallam PSL and open up a whole new world of design options for the interior of a home. Create long, clear spans and support heavy loads, whether inside or out in the elements.

Trus Joist® TimberStrand® laminated strand lumber (LSL) and Parallam® parallel strand lumber (PSL) can help you meet the requirements of these challenging designs. Weyerhaeuser also offers product and design support that includes technical information, design software, and design advice from our team of skilled engineers and sales representatives.

Parallam® Plus PSL may be used for interior, dry or damp, aboveground applications (AWPA UC1 and AWPA UC2) to help protect against wood-destroying insects. Parallam® Plus PSL is also suitable for exterior applications where a structural member is either partly or entirely located paRallam® pluS pSl appliCaTionS ae Wp us

Trus Joist® TimberStrand® laminated strand lumber (LSL) and Parallam® parallel strand lumber (PSL) can help you meet the requirements of these challenging designs. Weyerhaeuser also offers product and design support that includes technical information, design software, and design advice from our team of skilled engineers and sales representatives.

Trus Joist® TimberStrand® laminated strand lumber (LSL) and Parallam® parallel strand lumber (PSL) can help you meet the requirements of these challenging designs. Weyerhaeuser also offers product and design support that includes technical information, design software, and design advice from our team of skilled engineers and sales representatives.

Many of today’s homes have design requirements — such as walls over 10 feet tall — that exceed the code provisions for conventional construction. Trus Joist® TimberStrand® laminated strand lumber (LSL) and Parallam® parallel strand lumber (PSL) can help you meet the requirements of these challenging designs.

Parallam® PSL columns are strong and consistent. Our manufacturing process uses veneer strands, allowing a significant percentage of each log to become a high-grade structural member. Combine their great load capacity with the strength of …

Using studs, sill plates and headers made from TimberStrand LSL, you can build walls that are tall, strong, stable and straight. Available in lengths up to 30 feet. TimberStrand LSL studs and columns provide excellent value when used selectively in the framing zones of a house, where straight studs translate into flush walls.

® PSL you get columns that resist shrinking and twisting and extra-long studs straight as a chalk line. • Starts straight and stays straight • Includes a limited Product Warranty for the life of the home • Meets window manufacturer and code requirements • Resists bowing, twisting, and shrinking • Proprietary specifier’s guide and

PSL, also called parallam, is made from veneers positioned into parallel strands connected with specialized adhesive, not unlike LVL. Notably, PSL is available in a wide range of wood grains and is compatible with various stains, making it a prime choice for exposed woodwork.