Engineered Lumber
Engineered lumber is designed to deliver superior strength, stability, and consistency for modern residential and commercial construction. Manufactured using advanced engineering processes, these products are built to minimize warping, twisting, shrinking, and splitting while providing dependable structural performance. Whether you're framing a new home, constructing multi-family buildings, or completing a commercial project, engineered lumber offers reliable solutions that help improve efficiency on every job site.
At 7D Wholesale, we supply high-quality engineered lumber products from trusted manufacturers to meet the demands of contractors, builders, dealers, and construction professionals. Our inventory includes products designed for floors, roofs, walls, headers, beams, and other structural applications, ensuring you have the right materials for projects of any size.

What we offer
Product
Roseburg
The Roseburg Framing System® consists of RFPI® Joists used in floor and roof construction, RigidLam® LVL which is used for headers, beams, studs and columns, and RigidRim® rimboard. All of the components are engineered to the industry’s highest standards to help contractors build solid, durable, and better performing framing systems compared to ordinary dimension lumber.
For more information including properties, design guides and specifications please visit:

Product
Rosboro
Made from coastal region Douglas fir, Rosboro’s Treated X-Beam is manufactured to match standard framing widths and I-joist compatible depths, and then is treated with Hi-Clear II – a clear industrial wood preservative that leaves the beam an attractive honey-color. The treatment protects against decay, mold, bacteria, and insects, including the Formosan termite.
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Product
IB MAX-CORE
IB MAX-CORE manufactures premium wood I-Joists that are recognized as an innovative solution to floor and roof framing needs. The wide flanges used in all IB MAX-CORE I-Joists provide a larger gluing and nailing surface for floor and roof sheathing as well as long-term performance benefits. Available in depths from 9-½” to 24”.
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Product
Tolko 1.35E & 1.55E LSL
An engineered alternative to traditional framing materials, Tolko’s T-TEC LSL offers dimensional stability, consistency, and dependable structural performance. Available in both 1.35E and 1.55E grades for joists, wall framing, headers and beams, with optional zinc borate treatment.
For more information including properties, design guides and specifications please visit:

Product
Evolution UC3B 2.1E Treated LVL
Evolution’s exterior-grade LVL is manufactured with chemically treated veneers, so field cuts and drilled holes need no additional end treatment. Evaluated to AWPA P45 Use Categories UC1 through UC3B and certified under ICC-ES ESR-5360, it carries a 25-year limited warranty against termite attack and decay. Beams and headers run a full spread of sizes, up to glulam dimensions.
For more information including properties, design guides and specifications please visit:



