Wood Products Taxonomy

Transcription

1 Then 1

2 Now 2

3 Wood Products Taxonomy WOOD Composites Solid Wood Panels Engineered Lumber Composites (ELC) Softwood Lumber Glued Treated Hardwood Lumber Wood/ Non-wood Wood Based LVL Boards Finger joined CCA treated Hardwood Wood/ Cement Particleboard OSL Dimension Edge glued Fire retardant MDF Timber Glulam Plywood OSB MSR Engineered Wood Products I-Beams Roof trusses 3

4 Commercial introduction for major wood products Laminated Strand Lumber Parallel Strand Lumber Lumber CCA-treated Lumber Laminated Veneer Lumber Wood I-Beam Light Frame Trusses Glue Laminated Lumber MSR Lumber Plywood Particleboard Waferboard Panels Medium Density Fiberboard Oriented Strand Board 4

5 Solid Wood - Boards Softwood Lumber Boards Dimension Lumber Timber Machine Stress Rated 1 thick material finished, non-structural markets are: export, industrial, home center N.A. production likely to increase 5

6 Boards BC Wood Specialties 6

7 Solid Wood - Dimension Lumber Softwood Lumber Boards Dimension Lumber Timber Machine Stress Rated 2x4, 2x6, 2x8 construction lumber majority of lumber produced in North America N.A. production has grown 1.4% p.a. over last 20 years bulk commodity product with little specialization 7

8 Dimension Lumber Canadian Wood Council 8

9 Solid Wood - Timber Softwood Lumber Boards Dimension Lumber Timber Machine Stress Rated minimum dimensions 5.5 mainly for export market production is decreasing high-end product 9

10 Timber Canadian Wood Council 10

11 Solid Wood - Machine Stress Rated Softwood Lumber Boards Dimension Lumber 1950f - 1.7E Timber Machine Stress Rated mechanically graded lumber structural end-uses value-added lumber product use is increasing in traditional and new markets 11

12 Machine Stress Rated Lumber BC Wood Specialties Alberta Forest Products Association 12

13 Solid Wood - Finger joined Glued Finger joined Edge-glued Glulam longer lengths produced from shorter stock allow defects to be reduced structural or non-structural utilized in lumber, glulam, I-beams markets are increasing 13

14 Finger Joined Lumber BC Wood Specialties 14

15 Solid Wood - Edge-glued panels Glued Finger joined Edge-glued Glulam edge-lamination of wood wider widths from narrow material stable-panel produced industrial and finished retail products 15

16 Edge Glued Panels BC Wood Specialties 16

17 Solid Wood - Glulam Glued Finger joined Edge-glued Individual laminations Finger joint Glulam glue-laminated lumber uses high quality, stress-rated lamstock used as beams and columns structural, architectural uses 17

18 Glue Laminated Beams Trus Joist Ellis Canadian Wood Council 18

19 Solid Wood - Hardwood Lumber Hardwood Lumber Hardwood used for architectural rather than structural products main NA supply from eastern NA grading system based on cutting high quality boards from rough lumber used for flooring, trim & molding, joinery, cabinets 19

20 Solid Wood - Hardwood Lumber

21 Particleboard Panels Wood-based Particleboard MDF Plywood OSB non-structural panel product uses waste particles from other processes surface is smooth but edges are not used mostly for industrial purposes 21

22 Particleboard mat formation Revolving former heads Wind forming 22

23 Medium Density Fiberboard Panels Wood-based Particleboard MDF Plywood OSB non-structural panel product uses mechanically produced wood fibres superior machinability to particleboard markets are growing rapidly 23

24 Disc refiner detail 24

25 Plywood Panels Wood-based Crossband Particleboard MDF Plywood OSB Grain direction Core Face structural panel product uses high quality softwood veneers manufactured in 4x8ft sheets market is steady or declining 25

26 Veneer Peeling 26

27 Plywood Canadian Wood Council 27

28 Oriented Strandboard Panels Wood-based Particleboard MDF Plywood OSB uses flakes or strands (approx. 20x100x1mm) aspen, poplar, pine, mixed hardwoods used produced as large panels (up to 12x24ft) structural panel as replacement for softwood plywood market is growing rapidly 28

29 Waferboard vs. OSB 29

30 Oriented Strandboard Structural Board Association Canadian Wood Council 30

31 Variation in wood products mean lower 5 th percentile Solid wood frequency safety factors allowable design stress strength

32 Variation in wood products mean mean lower 5 th percentile frequency lower 5 th percentile safety factors safety factors Solid wood Wood composite A allowable design stress strength allowable design stress

33 Variation in wood products mean mean lower 5 th percentile lower 5 th percentile safety factors Solid wood Wood composite B frequency safety factors allowable design stress strength allowable design stress

34 Laminated Veneer Lumber (LVL) Engineered Lumber Composites Laminated Veneer Lumber (LVL) Oriented Strand Lumber (OSL) veneers glued with grain running parallel to each other veneers graded prior to assembly used on flat or on edge used as I-beam flanges, beams and joists 34

35 Laminated Veneer Lumber Trus Joist 35

36 Oriented Strand Lumber (OSL) Engineered Lumber Composites Laminated Veneer Lumber (LVL) Oriented Strand Lumber (OSL) uses long strands of wood wide variety of dimensions possible Parallam, 2.3mx1cm veneers, high-end structural uses TimberStrand, 30cmx2cm flakes, window frames, door stock, wall studs 36

37 Parallel Strand Lumber (Parallam) Trus Joist 37

38 I-Beams Engineered Wood Products flange I-Beams web Roof trusses flanges - lumber, MSR lumber, LVL, OSL webs - plywood, OSB replace wide, solid pieces of wood used as floor joists, roof rafters 38

39 I - Beams Trus Joist 39

40 Roof Trusses Engineered Wood Products Top chord Web I-Beams Roof trusses Bottom chord Truss plate 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 40

41 Trusses Canadian Wood Council 41