Engineered Wood Products

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Presentation transcript:

Engineered Wood Products Title page Monica A. Snow Associate Professor Wentworth Institute of Technology

Engineered Wood Products Categories Panel Products Plywood Oriented Strand Board (OSB) Glulam Engineered Joists I -Joists Open web joists Structural Composite Lumber (SCL) Parallel Strand Lumber (PSL) Laminated Veneer Lumber (LVL) Laminated Strand Lumber (LSL)

Engineered Wood Products Panel Products Plywood -- plies of veneer (odd number) -- cross-laminated lay-up -- grain of faces oriented in the longitudinal direction Source: APA-The Engineered Wood Association

Engineered Wood Products Panel Products Oriented Strand Board -- strands (long wide flakes) -- outer layers oriented in the longitudinal direction -- central layers either cross- oriented or random alignment Source: APA-The Engineered Wood Association

Engineered Wood Products Glulam -- solid-sawn structural lumber -- face bonded Source: APA-The Engineered Wood Association

Engineered Wood Products Engineered Joist I-Joist I Joists (in place) flange web flange Source: R. Jonckheere- The Calculated Wood

Engineered Wood Products Engineered Joist Open web joist Source: Open Joist 2000

Engineered Wood Products Structural Composite Lumber (SCL) Laminated Veneer Lumber (LVL) Parallel Strand Lumber (PSL) Laminated Strand Lumber (LSL) Source: Trus Joist, A Weyerhaueser Business

Engineered Wood Products Laminated Veneer Lumber: LVL -- plies of veneer -- grain of all plies oriented in the same direction Source: APA-The Engineered Wood Association Source: Boise Cascade

Engineered Wood Products LVL Material formed by bonding wood veneer with a phenol-resorcinol based adhesive. Veneer aligned with similar orientation with the length of the member. Source: Trus Joist, A Weyerhaueser Business

Engineered Wood Products Parallel Strand Lumber: PSL -- long strands cut from veneer -- continuous feed process -- billet product Source: R. Jonckheere- The Calculated Wood

Engineered Wood Products PSL Material formed from rotary peeled wood veneer strands coated with a phenol-formaldehyde based adhesive. Strands aligned with similar orientation with the length of the member. Source: Trus Joist, A Weyerhaueser Business

Engineered Wood Products Laminated Strand Lumber: LSL -- strands (longer than OSB strands) -- logs need not be peeled -- billet product Source: APA-The Engineered Wood Association

Engineered Wood Products LSL Material formed from sliced wood strands and bonded with an isocyanate based adhesive. Strands aligned parallel to the length of the member. Source: Trus Joist, A Weyerhaueser Business