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Design Requirements

Product Specified Strengths (MPa)Footnote (1) Footnote (2) Footnote (7) Footnote (8) Footnote (11)

Species

Grade

Axial

Load Parallel to WFS (Joist/Beam)

Load Perpendicular to WFS (Plank)

MOEFootnote (7)

FtFootnote (3)

Fc

FbFootnote (4) Footnote (5) Footnote (10)

Fv

FcperpFootnote (6)

FbFootnote (4)

Fv

FcperpFootnote (6)

Douglas Fir (DF)-Larch

1.8E

22.35

27.50

31.85

2.95

6.84

30.60

2.45

6.82

12 410

1.9E

24.10

29.70Footnote (9)

34.40

3.35

7.28

32.17

2.55

7.31

13 100

2.0E

25.85

31.90Footnote (9)

36.95

3.70

7.84

33.77

2.70

7.96

13 790

2.1E

25.85

31.90Footnote (9)

36.95

3.70

7.84

33.77

2.70

7.96

14 480

2.2E

25.85

31.90Footnote (9)

36.95

3.70

7.84

33.77

2.70

7.96

15 170

Southern Pine (SP)

1.8E

22.35

27.50

31.85

2.95

7.50

30.60

2.45

7.49

12 410

1.9E

24.10

29.70Footnote (9)

34.40

3.35

8.50

33.15

2.55

8.33

13 100

2.0E

25.85

31.90Footnote (9)

36.95

3.70

9.40

35.70

2.70

9.24

13 790

2.1E

27.55

34.15Footnote (9)

39.50

4.10

10.35

38.25

2.85

10.08

14 480

Yellow Poplar (YP) or YP/Red Maple (RM)

1.8E

22.35

27.50

31.85

2.95

7.50

30.60

2.45

9.24

12 410

1.9E

24.10

29.70Footnote (9)

34.40

3.35

8.50

33.15

2.55

10.50

13 100

2.0E

25.85

31.90Footnote (9)

36.95

3.70

9.40

35.70

2.70

11.90

13 790

2.1E

27.55

34.15Footnote (9)

39.50

4.10

10.35

38.25

2.85

13.16

14 480

Results of Testing the Fire Resistance Properties of the Product

Specimen

Size (mm)

Estimated Fire Resistance as per Appendix D-2.11. Equations of Division B of the NBC 2015 (min)

Tested Fire Resistance (min)

Column

267 × 267 × 3 810

53.4

59.25

Beam No. 1

200 × 406 × 4 700

70

99

Beam No. 2

225 × 300 × 4 700

73

112

Equivalent Wood Species for Determining Fastener Capacities

Fastener Property

Nail Orientation

Load Direction

Specific Gravity (SG) of Equivalent Species for Design Purposes

Nail withdrawal

edge

withdrawal

Douglas Fir – Larch (N), SG = 0.50

face

withdrawal

Douglas Fir – Larch (N), SG = 0.50

Lateral nail capacity

edge

parallel to grain

Douglas Fir – Larch (N), SG = 0.50

edge

perpendicular to grain

Douglas Fir – Larch (N), SG = 0.50

face

parallel to grain

Douglas Fir – Larch (N), SG = 0.50

face

perpendicular to grain

Douglas Fir – Larch (N), SG = 0.50

Bolt axial capacity

parallel to grain

Douglas Fir – Larch (N), SG = 0.50

perpendicular to grain

Douglas Fir – Larch (N), SG = 0.50