6″ Rib

Our 6″ Rib profile is usually used as a roofing product however, it has been supplied for siding and other architectural applications.

To view more details about our 6″ Rib roofing and siding, please select one of the links below. Or you can contact a Corrugated Metals representative at 1-800-621-5617.

B-Deck2

B-DECK-Model (1)

Download the 6″ Rib data sheet to see what options are available. Click here to download the PDF.

Load Table

SectionWeightTotal Cross-Sectional
Area
A (in2)
Allowable Stress
Fa (psi)
Top Flat in CompressionBottom Flat in Compression
Sheet
lb/ft
Area
lb/sf
Moment of Inertia
I (in4/ft)
Section Modulus
S (in3/ft)
Allowable Momen
Ma (lb-ft/ft)
Moment of Inertia
I (in4/ft)
Section Modulus
S (in3/ft)
Allowable Moment
Ma (lb-ft/ft)

18 Ga

8.24

2.70

2.42

19760

0.291

0.322

530

0.261

0.395

650

20 Ga

6.60

2.16

1.94

19760

0.233

0.258

425

0.196

0.285

469

22 Ga

5.12

1.68

1.50

19760

0.180

0.200

330

0.141

0.196

322

24 Ga

4.46

1.46

1.31

19760

0.153

0.169

278

0.119

0.160

264

0.05 Alum

2.87

0.94

2.42

5304

0.291

0.322

230

0.291

0.489

231

0.04 Alum

2.29

0.75

1.94

4434

0.233

0.258

168

0.233

0.394

153

0.032 Alum

1.84

0.60

1.55

3821

0.186

0.208

125

0.186

0.319

107

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Table 1: Applied Load (PSF)

An asterisk (*) indicates allowable stress has been reached.

Table 1Applied Load (PSF)
Allowable Spans102030405060
SectionSpan LimitSpan TypeAllowable Spans (ft)
18 GaL/601 Span17′-5″13′-8″ *11′-5″ *10′-0″ *9-0″ *8′-3″ *
2 Span20′-3″ *15′-2″ *12′-7″ *11′-0″ *9′-11″ *9′-1″ *
3 Span19′-10″15′-2″ *12′-8″ *11′-1″ *10′-0″ *9′-2″ *
L/2401 Span11′-0″9′-1″8′-0″7′-4″6′-10″6′-5″
2 Span12′-9″10′-6″9′-4″8′-6″7′-11″7′-6″
3 Span12′-6″10′-3″9′-1″8′-4″7′-9″7′-4″
20 GaL/601 Span16′-1″12′-5″ *10′-3″ *9′-0″ *8′-1″ *7′-5″ *
2 Span17′-7″ *13′-0″ *10′-10″ *9′-5″ *8′-6″ *7′-9″ *
3 Span18′-2″ *13′-5″ *11′-2″ *9′-9″ *8′-9″ *8′-0″ *
L/2401 Span10′-2″8′-4″7′-4″6′-8″6′-3″5′-11″
2 Span12′-0″9′-10″8′-8″7′-11″7′-5″7′-0″
3 Span11′-9″9′-7″8′-6″7′-9″7′-3″6′-10″
22 GaL/601 Span14′-7″10′-11″ *9′-0″ *7′-10″ *7′-1″ *6′-6″ *
2 Span14′-10″ *10′-11″ *9′-0″ *7′-10″ *7′-1″ *6′-6″ *
3 Span15′-4″ *11′-3″ *9′-4″ *8′-2″ *7′-4″ *6′-8″ *
L/2401 Span9′-2″7′-6″6′-7″6′-0″5′-7″5′-3″
2 Span11′-2″9′-1″8′-0″7′-4″6′-10″6′-5″
3 Span10′-11″8′-11″7′-10″7′-2″6′-8″6′-3″
24 GaL/601 Span13′-7″ *9-11″ *8′-2″ *7′-2″ *6′-5″ *5′-10″ *
2 Span13′-7″ *9-11″ *8′-2″ *7′-2″ *6′-5″ *5′-10″ *
3 Span14′-0″ *10′-5″ *8′-6″ *7′-4″ *6′-7″ *6′-1″ *
L/2401 Span8′-9″7′-1″6′-3″5′-8″5′-4″5′-0″
2 Span10′-8″8′-8″7′-8″6′-11″6′-5″ *5′-10″ *
3 Span10′-5″8′-5″7′-5″6′-9″6′-4″5′-11″
0.32 AlumL/601 Span8′-9″ *6′-3″ *5′-2″ *4′-6″ *4′-0″ *3′-8″ *
2 Span8′-9″ *6′-3″ *5′-2″ *4′-6″ *4′-0″ *3′-8″ *
3 Span9′-1″ *6′-6″ *5′-4″ *4′-7″ *4′-2″ *3′-9″ *
L/2401 Span7′-4″5′-11″5′-2″4′-6″ *4′-0″ *3′-8″ *
2 Span8′-3″6′-3″ *5′-2″ *4′-6″ *4′-0″ *3′-8″ *
3 Span8′-0″6′-5″5′-4″ *4′-7″ *4′-2″ *3′-9″ *
0.04 AlumL/601 Span10′-5″ *7′-6″ *6′-2″ *5′-4″ *4′-9″ *4′-5″ *
2 Span10′-5″ *7′-6″ *6′-2″ *5′-4″ *4′-9″ *4′-5″ *
3 Span10′-9″ *7′-9″ *6′-4″ *5′-6″ *4′-11″ *4′-6″ *
L/2401 Span7′-10″6′-4″5′-6″5′-0″4′-8″4′-5″ *
2 Span8′-10″7′-1″6′-2″ *5′-4″ *4′-9″ *4′-5″ *
3 Span8′-7″6′-11″6′-1″5′-6″4′-11″ *4′-6″ *
0.05 AlumL/601 Span12′-7″ *9′-1″ *7′-6″ *6′-6″ *5′-10″ *5′-4″ *
2 Span12′-7″ *9′-1″ *7′-6″ *6′-6″ *5′-10″ *5′-4″ *
3 Span13′-0″ *9′-5″ *7′-9″ *6′-9″ *6′-0″ *5′-6″ *
L/2401 Span8′-5″6′-9″5′-11″5′-5″5′-1″4′-9″
2 Span9′-5″7′-7″6′-8″6′-1″5′-8″5′-4″ *
3 Span9′-3″7′-5″6′-6″5′-11″5′-6″5′-2″

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Table 2: Trial Span (ft)

An asterisk (*) indicates allowable stress has been reached.

A strikethrough (100) indicates less than 10 small psf ASCE minimum.

Table 2

Trial Span (ft)

Allowable Loads

3

4

5

6

7

8

9

10

11

12

Section

Span Limit

Span Type

Allowable Loads (PSF)

18 GaL/601 Span

368 *

262 *

166 *

115 *

83 *

63 *

49 *

39 *

32 *

26 *

2 Span

575 *

322 *

205 *

141 *

103 *

78 *

61 *

49 *

40 *

33 *

3 Span

579 *

325 *

207 *

142 *

104 *

79 *

62 *

49 *

40 *

33 *

L/2401 Span

468 *

260

131

75

46

30

20

14

9

7

2 Span

575 *

322 *

205 *

120

74

49

33

23

17

12

3 Span

579 *

325 *

194

111

69

45

31

21

15

11

20 GaL/601 Span

375 *

210 *

133 *

92 *

67 *

51 *

39 *

31 *

25 *

21 *

2 Span

415 *

232 *

148 *

102 *

74 *

56 *

44 *

35 *

28 *

23 *

3 Span

443 *

248 *

158 *

109 *

79 *

60 *

47 *

37 *

30 *

25 *

L/2401 Span

375 *

195

99

56

34

22

15

10

7

5

2 Span

415 *

232 *

148 *

96

59

39

26

19

13

10

3 Span

443 *

248 *

155

89

55

36

24

17

12

9

22 GaL/601 Span

284 *

159 *

101 *

69 *

50 *

38 *

30 *

24 *

19 *

16 *

2 Span

284 *

159 *

101 *

69 *

50 *

38 *

30 *

24 *

19 *

16 *

3 Span

304 *

170 *

108 *

74 *

54 *

41 *

32 *

25 *

21 *

17 *

L/2401 Span

284 *

140

71

40

24

16

10

7

5

3

2 Span

284 *

159 *

101 *

69 *

46

30

20

14

10

7

3 Span

304 *

170 *

108 *

68

42

28

19

13

9

7

24 GaL/601 Span

232 *

130 *

82 *

57 *

41 *

31 *

24 *

19 *

15 *

13 *

2 Span

232 *

130 *

82 *

57 *

41 *

31 *

24 *

19 *

15 *

13 *

3 Span

248 *

139 *

88 *

61 *

44 *

33 *

26 *

21 *

17 *

14 *

L/2401 Span

232 *

117

59

33

20

13

9

6

4

2

2 Span

232 *

130 *

82 *

57 *

39

25

17

12

9

6

3 Span

248 *

139 *

88 *

58

36

23

16

11

8

6

0.32 AlumL/601 Span

89 *

50 *

31 *

21 *

15 *

12 *

9 *

7 *

6 *

5 *

2 Span

89 *

50 *

31 *

21 *

15 *

12 *

9 *

7 *

6 *

5 *

3 Span

95 *

53 *

34 *

23 *

17 *

12 *

10 *

8 *

6 *

5 *

L/2401 Span

89 *

50 *

31 *

18

11

7

5

3

2

1

2 Span

89 *

50 *

31 *

21 *

15 *

10

7

5

3

2

3 Span

95 *

53 *

34 *

23 *

15

10

6

4

3

2

0.04 AlumL/601 Span

128 *

72 *

45 *

31 *

23 *

17 *

13 *

10 *

8 *

7 *

2 Span

128 *

72 *

45 *

31 *

23 *

17 *

13 *

10 *

8 *

7 *

3 Span

137 *

76 *

48 *

33 *

24 *

18 *

14 *

11 *

9 *

7 *

L/2401 Span

128 *

72 *

40

23

14

9

6

4

3

2

2 Span

128 *

72 *

45 *

31 *

20

13

9

6

4

2

3 Span

137 *

76 *

48 *

31

19

12

8

6

4

3

0.05 AlumL/601 Span

191 *

107 *

68 *

47 *

34 *

26 *

20 *

16 *

13 *

11 *

2 Span

191 *

107 *

68 *

47 *

34 *

26 *

20 *

16 *

13 *

11 *

3 Span

204 *

114 *

72 *

50 *

36 *

27 *

21 *

17 *

14 *

11 *

L/2401 Span

191 *

101

51

29

18

11

8

5

3

2

2 Span

191 *

107 *

68 *

41

26

17

11

8

6

4

3 Span

204 *

114 *

67

38

24

15

10

7

5

4

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Notes

  1. An asterisk (*) indicates allowable stress has been reached.
  2. A strikethrough (100) indicates less than 10 small psf ASCE minimum.
  3. For structural roofing & siding made of formed metal sheets, a total load deflection shall not exceed L/60.
  4. Refer to Table 1604.3 limits and footnotes of the International Building Code (IBC) for additional guidance.
  5. Allowable spans and loads DO include self-weight of panel.
  6. All values are for one foot of panel width unless noted otherwise.

Notes – Steel

  1. Yield stress = Fy = 33,000 psi.
  2. Loads and spans for carbon steel are based on AISI Standard for Design of Cold-Formed Steel Structure Members (2007 Edition).

Notes – Aluminum

  1. Yield stress = Fcy = 13,000 psi.
  2. Loads and spans for aluminum are based on Aluminum Design Manual (January 2005).

Corrugated Metals, Inc. is a leading manufacturer of a wide range of roofing, siding and architectural panels. Our advanced technology roll forming equipment can produce panels with up to 48″ coverage, in all types of metals, standard and special finishes. From large industrial and institutional facilities to commercial projects, our customers count on CMI to deliver on time, on-spec.

Call us today at 1-800-621-5617, fill out our contact form
or email us at info@corrugated-metals.com