Type “B” (Wide Rib) Corrugated Metal Roof Deck

Type B (Wide Rib) Roof Deck Description:

Type B (Wide Rib) deck provides maximum structural load capacity through an efficient profile design and allows the use of 1 inch thick rigid insulation boards. The side lap of this product permits easy installation and its nest-able feature eliminates the need for die-set ends.

Certified by Steel Deck Institute

Approved by Factory Mutual System

Classified by Underwriters Laboratories Inc.

Type “B” (Wide Rib) Roof DeckB-Deck Speciifications

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Section Properties (Per Ft. of Width)

Deck Gage Design Thickness In. Weight Lbs. Per Sq. Ft. “I” in. “Sp” in. “Sn” in.
Ptd. Galv.

22

0.0295

1.70

1.90

0.165

0.192

0.198

20

0.0358

2.07

2.25

0.214

0.247

0.256

18

0.0474

2.80

2.95

0.308

0.336

0.347

16

0.0598

3.30

3.40

0.401

0.431

0.436

Uniform Total (Dead & Live) Load – Lbs. Per Sq. Ft.

Span Condition Gage Span, Ft.-in.
5-0 5-6 6-0 6-6 7-0 7-6 8-0 8-6 9-0 9-6 10-0

Simple

22

96

75

60

49

41

35

31

 

 

 

 

20

122

94

74

61

50

43

37

32

 

 

 

18

171

131

103

83

68

57

49

42

37

33

30

16

 

167

131

105

86

72

61

52

46

40

36

Two

22

104

86

72

61

53

46

40

36

32

 

 

20

135

111

93

79

68

60

52

46

41

37

33

18

183

151

127

108

93

81

71

63

56

50

45

16

 

190

159

136

117

102

89

79

71

63

57

Three or More

22

130

108

90

77

66

58

50

43

38

33

30

20

168

139

117

99

86

72

61

53

46

40

36

18

 

189

158

135

116

100

84

72

62

54

48

16

 

 

199

170

146

127

107

90

78

68

59

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