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Oriented Strand Lumber Uses long strands of wood Wide variety of dimensions possible Parallam, 2.3mx1cm softwood veneers - high-end structural uses TimberStrand,

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Presentation on theme: "Oriented Strand Lumber Uses long strands of wood Wide variety of dimensions possible Parallam, 2.3mx1cm softwood veneers - high-end structural uses TimberStrand,"— Presentation transcript:

1 Oriented Strand Lumber 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 Ellis TimberStrand Parallam

2 Parallam® Elements:Strips of wooden veneer (1/8-1/10 thick, 1/2 wide, up to 8 long) ProductWidthup to 12 inches Dimensions:Depthup to 21 inches Lengthup to 66 feet Applications:Beams, columns, headers 2

3 Parallel Strand Lumber

4 Parallam® PSL – production overview

5 Parallam® Veneer clipped into long strips Strips coated with glue and aligned parallel to each other Cured by microwave heating 5

6 Parallam® PSL – short strand elimination

7 Parallam® PSL – strand orientation wig-wag table trough

8 Parallam® PSL – continuous, microwave press G H J

9 Laminated Veneer Lumber Variability is reduced in one plane. Parallam® Variability is reduced in two planes. Solid wood Variability is at its greatest level. Reduction of natural variability 9

10 Oriented Strand Lumber - Parallam Trus Joist

11 Parallam® PSL

12 Elements:Strands of aspen, cottonwood (1/20 thick, 1 wide, 12 long) ProductWidth1½ -3½ inches Dimensions:Depth9½-14 inches Lengthup to 48 feet Applications:Beams, wall studs, headers TimberStrand 12

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

14 TimberStrand LSL – manufacturing overview

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

16 TimberStrand LSL - rimboard

17 TimberStrand LSL - header

18 TimberStrand LSL – stair stringers

19 TimberStrand 19

20 TimberStrand LSL – light framing

21 WOOD CompositesSolid WoodPulp and Paper Panels Engineered Lumber Composites Softwood Lumber Wood/Non- wood Wood Based Wood/Cement Wood/Plastic Particleboard MDF Plywood OSB LVL OSL Glulam HardwoodTreatedGlued Finger joined Edge glued PulpPaper Mechanical Chemical Boards Dimension Timber MSR Secondary Wood Products Furniture Cabinets Windows & Doors Millwork & Factory-built Housing Wood Products Taxonomy Engineered Wood Products I -Beams Trusses CLT

22 Elements:Flange- MSR lumber, LVL, Parallam Web - OSB, Plywood ProductWidth1½ -3½ inches Dimensions:Depth9 ½-24 inches Lengthup to 66 feet Applications:Floor joists, roof joists I - Beams 22

23 Wood I-Beams

24 Wood I-Beams – manufacturing overview

25 I - Beams Trus Joist

26 I - Beam constitution F LANGE MSR lumber TimberStrand LVL LVL W EB OSB OSB Plywood OSB

27 Wood I-Beams Flange = MSR lumberFlange = TimberStrand LSL Web = PlywoodWeb = Oriented Strandboard

28 Wood I-Beams

29 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

30 Roof Trusses Canadian Wood Council

31 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.

32 Cross-Laminated Timber Structurlam

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


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