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Descriptions of the Pinkwood I-Joist Series
Joist Series

Joist Type

Joist Depth (mm)

Flange Dimension (mm)

Flange Grade

Web Thickness (mm)

PKI 10

PKI 10-10

241

38 × 63.5

Ripped 2 × 6 enhanced No. 2 spruce-pine-fir (S-P-F) and better S-P-F lumber

9.5

PKI 10-12

302

38 × 63.5

9.5

PKI 10-14

356

38 × 63.5

9.5

PKI 20

PKI 20-10

241

38 × 63.5

Proprietary enhanced machine stress-rated (MSR) lumber

9.5

PKI 20-12

302

38 × 63.5

9.5

PKI 20-14

356

38 × 63.5

9.5

PKI 20-16

406

38 × 63.5

9.5

PKI 23

PKI 23-10

241

38 × 63.5

Proprietary enhanced MSR lumber

11.1

PKI 23-12

302

38 × 63.5

11.1

PKI 23-14

356

38 × 63.5

11.1

PKI 23-16

406

38 × 63.5

11.1

PKI 35 Plus

PKI 35 Plus-10

241

38 × 89

Ripped 2 × 8 enhanced No. 2 S-P-F and better S-P-F lumber or 2 × 4 enhanced Douglas fir-larch (north)

9.5

PKI 35 Plus-12

302

38 × 89

9.5

PKI 35 Plus-14

356

38 × 89

9.5

PKI 35 Plus-16

406

38 × 89

9.5

PKI 40

PKI 40-10

241

38 × 89

Proprietary enhanced MSR lumber

9.5

PKI 40-12

302

38 × 89

9.5

PKI 40-14

356

38 × 89

9.5

PKI 40-16

406

38 × 89

9.5

PKI 40-18

457

38 × 89

11.1

PKI 40-20

508

38 × 89

11.1

PKI 40-22

559

38 × 89

11.1

PKI 40-24

610

38 × 89

11.1

PKI 50

PKI 50-12

302

38 × 89

Proprietary enhanced MSR lumber

11.1

PKI 50-14

356

38 × 89

11.1

PKI 50-16

406

38 × 89

11.1

PKI 50-18

457

38 × 89

11.1

PKI 50-20

508

38 × 89

11.1

PKI 50-22

559

38 × 89

11.1

PKI 50-24

610

38 × 89

11.1

Factored Resistance Specifications for the ProductsFootnote (1) Footnote (2) Footnote (3)
Joist Type

Depth (mm)

Factored Moment Resistance (N·m)

Factored Shear Resistance (N)

EI × 106 (kN·mm2)

K × 106 (N)

PKI 10-10

241

5 098

8 852

482

21.97

PKI 10-12

302

6 033

10 431

819

27.47

PKI 10-14

356

8 386

11 788

1 205

32.38

PKI 20-10

241

6 338

8 852

554

21.97

PKI 20-12

302

8 474

10 431

938

27.49

PKI 20-14

356

9 931

11 788

1 375

32.38

PKI 20-16

406

11 402

13 122

1 871

37.01

PKI 23-10

241

7 254

11 121

597

21.97

PKI 23-12

302

9 409

12 677

1 010

27.47

PKI 23-14

356

11 328

14 079

1 478

32.38

PKI 23-16

406

13 131

15 369

2 009

37.01

PKI 35 Plus-10

241

7 565

8 852

671

21.97

PKI 35 Plus-12

302

9 796

10 431

1 137

27.49

PKI 35 Plus-14

356

11 748

11 788

1 664

32.38

PKI 35 Plus-16

406

13 355

13 122

2 259

37.01

PKI 40-10

241

12 148

9 408

941

21.97

PKI 40-12

302

15 714

11 410

1 587

27.49

PKI 40-14

356

18 927

13 167

2 316

32.38

PKI 40-16

406

21 937

14 857

3 134

37.01

PKI 40-18

457

24 811

17 793

4 079

41.64

PKI 40-20

508

27 455

18 816

5 163

46.26

PKI 40-22

559

30 065

19 772

6 383

50.89

PKI 40-24

610

32 648

20 684

7 744

55.51

PKI 50-12

302

17 937

14 991

1 621

27.49

PKI 50-14

356

20 744

16 014

2 365

32.38

PKI 50-16

406

24 025

16 948

3 200

37.01

PKI 50-18

457

28 798

17 793

4 170

41.64

PKI 50-20

508

31 963

18 816

5 276

46.26

PKI 50-22

559

32 899

19 772

6 523

50.89

PKI 50-24

610

35 726

20 684

7 912

55.51

Bearing Factored Resistance Specifications for the ProductsFootnote (1) Footnote (2) Footnote (3)
Joist Type

Depth (mm)

End Reaction (N)

Intermediate Reaction (N)

38 mm or 64 mm BearingFootnote (4)

102 mm BearingFootnote (5)

89 mm Bearing

140 mm Bearing

Bearing Stiffeners

Bearing Stiffeners

Bearing Stiffeners

Bearing Stiffeners

No

Yes

No

Yes

No

Yes

No

Yes

PKI 10-10

241

6 316

8 007

7 784

8 852

15 413

16 014

17 192

17 682

PKI 10-12

302

6 316

8 941

8 140

10 431

15 413

17 437

17 726

19 728

PKI 10-14

356

6 316

9 786

8 429

11 788

15 413

18 705

18 149

20 782

PKI 20-10

241

6 806

8 007

7 784

8 852

15 413

16 681

17 192

18 505

PKI 20-12

302

6 806

8 941

8 140

10 431

16 369

17 726

18 215

19 861

PKI 20-14

356

6 806

9 786

8 429

11 788

17 237

18 705

19 127

21 107

PKI 20-16

406

6 806

10 609

8 696

13 122

18 038

19 617

20 017

22 286

PKI 23-10

241

7 362

10 031

9 475

10 542

16 903

19 439

20 017

22 530

PKI 23-12

302

7 362

10 320

10 075

11 788

16 903

19 439

20 017

23 020

PKI 23-14

356

7 362

10 565

10 431

12 944

16 903

19 439

20 017

23 442

PKI 23-16

406

7 362

10 809

10 542

14 034

16 903

19 439

20 017

23 865

PKI 35 Plus-10

241

6 316

8 007

7 784

8 852

15 413

16 014

17 192

17 682

PKI 35 Plus-12

302

6 316

8 941

8 140

10 431

15 413

17 437

17 726

19 728

PKI 35 Plus-14

356

6 316

9 786

8 429

11 788

15 413

18 705

18 149

20 782

PKI 35 Plus-16

406

6 316

10 609

8 585

13 100

15 413

20 217

18 571

21 796

PKI 40-10

241

8 318

9 408

9 163

9 408

20 351

21 730

20 640

22 441

PKI 40-12

302

8 741

10 609

11 210

11 410

21 240

23 442

21 907

24 688

PKI 40-14

356

8 985

11 654

11 210

13 167

21 641

25 021

23 020

26 712

PKI 40-16

406

9 074

12 633

11 210

14 857

22 063

26 511

24 109

28 647

PKI 40-18

457

9 186

14 457

11 788

17 904

19 995

30 092

24 109

34 896

PKI 40-20

508

9 186

15 324

11 788

18 527

19 995

30 960

24 109

34 896

PKI 40-22

559

9 186

16 214

11 788

19 194

19 995

31 805

24 109

34 896

PKI 40-24

610

9 186

17 126

11 788

19 861

19 995

32 583

24 109

34 896

PKI 50-12

302

8 741

10 609

11 210

11 410

21 240

23 442

21 907

24 688

PKI 50-14

356

8 985

11 654

11 210

13 167

21 641

25 021

23 020

26 712

PKI 50-16

406

9 074

12 633

11 210

14 857

22 063

26 511

24 109

28 647

PKI 50-18

457

9 186

14 457

11 788

17 904

19 995

30 092

24 109

34 896

PKI 50-20

508

9 186

15 324

11 788

18 527

19 995

30 960

24 109

34 896

PKI 50-22

559

9 186

16 214

11 788

19 194

19 995

31 805

24 109

34 896

PKI 50-24

610

9 186

17 126

11 788

19 861

19 995

32 583

24 109

34 896