Language selection

Search

Content page

From [Institution name]

Joist Flange Sizes and Grades

IB I-Joist

Depth (mm)

Grade

Flange Size (mm)

Web ThicknessFootnote (1) (mm)

IB 400

235-406

ProprietaryFootnote (2) S-P-F No. 2 and better or enhancedFootnote (3) MSR 1650f-1.5E

38 x 63.5

9.5

IB 600

235-508

EnhancedFootnote (3) MSR 2100f-1.8E

38 x 63.5

9.5

IB 800

235-508

EnhancedFootnote (3) MSR 2100f-1.8E

38 x 89

9.5

IB 900

302-610

EnhancedFootnote (3) MSR 2550f-2.1E

38 x 89

11.1

Engineering PropertiesFootnote (1) (Limit States DesignFootnote (2))

Series

Joist Depth (mm)

Factored Moment ResistanceFootnote (3) Mr (N·m)

Factored Shear ResistanceFootnote (4) Vr

EI (x106) (kN·mm2)

Shear Deflection ‘K’ Factor (x106) (N)

Factored Vertical Load ResistanceFootnote (5) (kN/m)

No Stiffeners

With Stiffeners

IB 400

235

6 122

8 109

8 109

531

21.40

48.7

241

6 314

8 320

8 320

568

21.97

48.7

286

7 689

9 864

9 864

849

26.02

48.7

302

8 185

10 391

10 391

964

27.49

48.7

356

9 854

10 882

12 286

1 418

32.38

48.7

406

11 421

10 882

14 042

1 931

37.01

48.7

IB 600

235

8 433

8 109

9 478

631

21.40

48.7

241

8 704

8 320

9 619

674

21.97

48.7

286

10 598

9 864

10 637

1 022

26.02

48.7

302

11 274

10 391

11 023

1 145

27.49

48.7

356

13 574

10 882

12 286

1 679

32.38

48.7

406

15 739

10 882

14 042

2 293

37.01

48.7

457

17 802

10 882

15 797

3 002

41.63

42.6

508

19 696

10 882

17 552

3 742

46.26

36.5

IB 800

235

11 940

8 109

9 759

881

21.40

48.7

241

12 323

8 320

9 864

936

21.97

48.7

286

15 006

9 864

10 812

1 415

26.02

48.7

302

15 965

10 391

11 128

1 584

27.49

48.7

356

19 234

10 882

12 286

2 316

32.38

48.7

406

22 301

10 882

14 042

3 139

37.01

48.7

457

25 108

11 233

16 148

4 147

41.63

44.1

508

27 915

11 584

18 254

5 163

46.26

39.6

IB 900

302

19 899

13 234

13 515

1 733

27.49

48.7

356

23 969

13 234

14 919

2 537

32.38

48.7

406

28 490

13 234

16 358

3 441

37.01

48.7

457

32 211

13 234

17 622

4 491

51.24

44.1

508

35 650

13 234

18 921

5 693

56.93

39.6

559

39 055

13 234

20 185

7 051

62.63

30.4

610

42 414

13 234

21 484

8 566

68.32

30.4

Additional Engineering Properties (Limit States Design)Footnote (1)
Series

Depth (mm)

Factored End ReactionsFootnote (2) (N)

38-mm-Bearing

44-mm-Bearing

70-mm-Bearing

89-mm-Bearing

No Stiffeners

With StiffenersFootnote (3)

No Stiffeners

With StiffenersFootnote (3)

No Stiffeners

With StiffenersFootnote (3)

No Stiffeners

With StiffenersFootnote (3)

IB 400

235

7 793

8 109

7 828

8 109

8 109

8 109

8 109

8 109

241

7 863

8 320

7 934

8 320

8 320

8 320

8 320

8 320

286

8 249

9 513

8 460

9 548

9 408

9 864

9 864

9 864

302

8 425

9 970

8 636

10 040

9 619

10 391

10 285

10 391

356

8 846

11 444

9 092

11 549

10 215

12 286

10 882

12 286

406

9 303

12 813

9 513

12 953

10 215

14 042

10 882

14 042

IB 600

235

7 793

8 109

7 934

9 478

8 109

9 478

8 109

9 478

241

7 863

8 320

8 004

9 619

8 320

9 619

8 320

9 619

286

8 249

9 513

8 530

10 637

9 408

10 637

9 864

10 637

302

8 425

9 970

8 706

11 023

9 619

11 023

10 285

11 023

356

8 846

11 444

9 373

12 286

10 250

12 286

10 882

12 286

406

9 303

12 813

9 970

13 515

10 496

13 831

10 882

14 042

457

n/a

n/a

10 566

14 709

10 742

15 340

10 882

15 797

508

n/a

n/a

10 882

15 867

10 882

16 815

10 882

17 552

IB 800

235

7 793

8 109

7 934

9 689

8 109

9 478

8 109

9 689

241

7 863

8 320

8 004

9 864

8 320

9 619

8 320

9 684

286

8 249

9 513

8 530

10 812

9 408

10 637

9 864

10 812

302

8 425

9 970

9 022

11 128

9 619

11 023

10 285

11 128

356

8 846

11 444

9 373

12 286

10 250

12 286

10 882

12 286

406

9 303

12 813

9 970

14 042

10 496

13 831

10 882

14 042

457

n/a

n/a

10 566

15 937

10 742

15 340

10 882

16 148

508

n/a

n/a

10 882

17 271

10 882

16 815

10 882

18 254

IB 900

302

8 425

9 970

9 829

11 128

11 444

12 006

12 673

12 673

356

8 846

11 444

9 829

12 286

11 444

13 129

12 673

13 761

406

9 303

12 813

9 970

14 042

11 514

15 376

12 673

16 358

457

n/a

n/a

10 566

15 937

11 233

16 885

11 760

17 622

508

n/a

n/a

10 882

17 341

11 374

18 184

11 760

18 816

559

n/a

n/a

10 321

18 219

11 128

19 132

11 760

19 799

610

n/a

n/a

10 321

20 220

11 128

20 536

11 760

20 782

Additional Engineering Properties (Limit States Design)Footnote (1)
Series

Depth (mm)

Factored Interior ReactionsFootnote (2) (N)

89-mm-Bearing

140-mm-Bearing

No Stiffeners

With StiffenersFootnote (3)

No Stiffeners

With StiffenersFootnote (3)

IB 400

235

15 165

16 218

16 218

16 219

241

15 165

16 639

16 639

16 639

286

17 552

19 623

19 728

19 728

302

17 552

19 623

19 728

20 782

356

17 552

19 623

21 765

24 257

406

17 552

19 623

21 765

25 626

IB 600

235

15 165

18 956

16 218

18 965

241

15 165

19 237

16 639

19 237

286

17 552

21 273

19 728

21 273

302

17 552

21 589

19 728

22 045

356

17 552

22 572

21 765

24 257

406

17 552

23 520

21 765

25 626

457

17 552

24 046

21 765

26 223

508

17 552

24 222

21 765

26 820

IB 800

235

16 218

18 956

16 218

18 956

241

17 341

19 237

17 341

19 237

286

19 728

21 273

19 728

21 273

302

19 728

22 045

19 728

22 045

356

21 203

24 573

21 203

24 573

406

21 765

28 083

21 765

28 083

457

21 765

29 663

21 765

29 663

508

21 765

30 541

21 765

30 541

IB 900

302

23 555

23 555

23 555

23 555

356

23 555

24 783

23 555

25 696

406

23 555

27 522

23 555

28 715

457

23 555

29 979

23 555

32 577

508

23 555

32 296

23 555

35 104

559

23 555

34 753

23 555

35 631

610

23 555

36 157

23 555

36 157