Oriented Strand Lumber TimberStrand Parallam Ellis  Uses long strands of wood  Wide variety of dimensions possible  Parallam, 2.3mx1cm softwood veneers - high-end structural uses  TimberStrand, 30cmx2cm hardwood flakes - window frames, door stock, wall studs

Parallam® Elements: Strips of wooden veneer (1/8-1/10” thick, 1/2” wide, up to 8’ long) Product Width up to 12 inches Dimensions: Depth up to 21 inches Length up to 66 feet Applications: Beams, columns, headers

Parallel Strand Lumber

Parallam® PSL – production overview 2 1 3 4 6 5

Parallam® Veneer clipped into long strips Strips coated with glue and aligned parallel to each other Cured by microwave heating

Parallam® PSL – short strand elimination Wood 487: Glued Wood Products Parallam® PSL – short strand elimination 11. EngineeredWood

Parallam® PSL – strand orientation Wood 487: Glued Wood Products Parallam® PSL – strand orientation wig-wag table trough 11. EngineeredWood

Parallam® PSL – continuous, microwave press Wood 487: Glued Wood Products Parallam® PSL – continuous, microwave press G H J 11. EngineeredWood

Reduction of natural variability Solid wood Variability is at its greatest level. Laminated Veneer Lumber Variability is reduced in one plane. Parallam® Variability is reduced in two planes.

Oriented Strand Lumber - Parallam Trus Joist

Parallam® PSL

TimberStrand™ Elements: Strands of aspen, cottonwood (1/20” thick, 1” wide, 12” long) Product Width 1½ -3½ inches Dimensions: Depth 9½-14 inches Length up to 48 feet Applications: Beams, wall studs, headers

TimberStrand™ Long strands of hardwoods Dimensions smaller than Parallam Not as strong as Parallam Cured by steam pressing Very dimensionally stable

TimberStrand™ LSL – manufacturing overview 1 2 3 6 4 5

Steam-injection pressing High pressure steam Mat of strands (unconsolidated) Perforated platen

TimberStrand™ LSL - rimboard Wood 487: Glued Wood Products TimberStrand™ LSL - rimboard 11. EngineeredWood

TimberStrand™ LSL - header

TimberStrand™ LSL – stair stringers Wood 487: Glued Wood Products TimberStrand™ LSL – stair stringers 11. EngineeredWood

TimberStrand™

TimberStrand™ LSL – light framing Wood 487: Glued Wood Products TimberStrand™ LSL – light framing 11. EngineeredWood

Wood Products Taxonomy Composites Solid Wood Pulp and Paper Panels Engineered Lumber Softwood Wood/Non-wood Wood Based Wood/Cement Wood/Plastic Particleboard MDF Plywood OSB LVL OSL Glulam Hardwood Treated Glued Finger joined Edge glued Pulp Paper Mechanical Chemical Boards Dimension Timber MSR Engineered Wood Products I-Beams Trusses CLT

I - Beams Elements: Flange- MSR lumber, LVL, Parallam Web - OSB, Plywood Product Width 1½ -3½ inches Dimensions: Depth 9 ½-24 inches Length up to 66 feet Applications: Floor joists, roof joists

Wood I-Beams

Wood I-Beams – manufacturing overview

I - Beams Trus Joist

I- Beam constitution Flange MSR lumber TimberStrand LVL LVL Web OSB OSB Plywood OSB

Wood I-Beams Flange = MSR lumber Flange = TimberStrand LSL Web = Plywood Web = Oriented Strandboard

Wood I-Beams

Roof Trusses  small dimension, short lengths of wood combined to produce large-sized, long length support members  held together with truss plates  often custom-designed using MSR lumber  pitch-chord or parallel-chord

Roof Trusses Canadian Wood Council

Cross-Laminated Timber More technical content and images on CLT Laminations of selected dimensional lumber. Each adjacent layer is oriented with grain perpendicular. Analagous to plywood made from solid wood rather than veneer.

Cross-Laminated Timber Structurlam

Cross-Laminated Timber Nine-storey residential building (wooden construction) (Waugh Thistleton Architects)