Load Span Tables

Allowable Uniform Loads in Pounds per Square Foot

Panel
Gauge

Span Type

Load Type

Span in Feet

3.0

4.0

5.0

6.0

7.0

8.0

9.0

29
Ga.

Single

Negative Wind Load

93.75

52.73

33.75

23.44

17.22

13.18

10.42

Live Load/Deflection

67.01

41.08

26.29

18.26

13.41

10.27

8.11

2-Span

Negative Wind Load

61.91

37.19

24.61

17.42

12.96

10.00

7.94

Live Load/Deflection

70.40

45.18

30.41

21.75

16.28

12.62

10.06

3-Span

Negative Wind Load

73.01

44.74

29.96

21.37

15.96

12.36

9.84

Live Load/Deflection

80.00

53.43

36.52

23.39

19.89

15.50

12.40

4-Span

Negative Wind Load

69.51

42.31

28.22

20.08

14.97

11.58

9.21

Live Load/Deflection

77.00

50.82

34.56

24.89

18.72

14.53

11.63

26
Ga.

Single

Negative Wind Load

133.48

75.08

48.05

33.37

24.52

18.77

14.83

Live Load/Deflection

119.08

69.83

44.69

31.04

22.80

17.46

13.79

2-Span

Negative Wind Load

114.41

66.59

43.33

30.37

22.44

17.24

13.66

Live Load/Deflection

105.60

71.09

46.37

32.55

24.07

18.51

14.66

3-Span

Negative Wind Load

138.49

81.62

53.46

37.61

27.86

21.44

17.00

Live Load/Deflection

120.00

86.91

57.11

40.25

29.85

22.99

18.24

4-Span

Negative Wind Load

130.70

76.70

50.12

35.22

26.06

20.05

15.89

Live Load/Deflection

115.50

81.75

53.58

37.71

27.93

21.50

17.05

24
Ga.

Single

Negative Wind Load

126.37

71.08

45.49

31.59

23.21

17.77

14.04

Live Load/Deflection

125.69

70.70

45.25

31.42

23.09

17.68

13.97

2-Span

Negative Wind Load

120.59

69.04

44.56

31.09

22.91

17.57

13.90

Live Load/Deflection

117.33

69.40

44.80

31.25

23.03

17.66

13.97

3-Span

Negative Wind Load

148.17

85.44

55.34

38.68

28.53

21.90

17.34

Live Load/Deflection

133.33

85.87

55.62

38.89

28.68

22.02

17.43

4-Span

Negative Wind Load

139.13

80.03

51.77

36.16

26.66

20.46

16.19

Live Load/Deflection

128.33

80.43

52.04

36.35

26.81

20.57

16.28

22
Ga.

Single

Negative Wind Load

163.85

92.16

58.98

40.96

30.09

23.04

18.21

Live Load/Deflection

174.46

98.14

62.81

46.62

32.04

24.53

19.38

2-Span

Negative Wind Load

168.30

96.14

61.98

43.21

31.83

24.41

19.31

Live Load/Deflection

158.71

90.50

58.30

40.63

29.91

22.94

18.14

3-Span

Negative Wind Load

207.24

119.12

77.03

53.80

39.67

30.44

24.09

Live Load/Deflection

195.75

1112.25

72.50

50.61

37.29

28.61

22.64

4-Span

Negative Wind Load

194.44

111.53

72.04

50.29

37.06

28.43

22.50

Live Load/Deflection

183.56

105.06

67.79

47.29

34.84

26.72

21.14

Notes:

  1. Strength calculations based on the 2012 AISI Standard “North American Specification for the Design of Cold-formed Steel Structural Members.”
  2. Allowable loads are applicable for uniform loading and spans without overhangs.
  3. Live load/deflection load capacities are for those loads that push the panel against its supports. The applicable limit states are flexure, shear, combined shear and flexure, web crippling at end and interior supports, and a deflection limit of L/60 under 10-year wind loading.
  4. Negative wind load capacities are for those loads that pull the panel away from its supports. The applicable limit states are flexure, shear, combined shear and flexure, and a deflection limit of L/60 under 10-year wind loading.
  5. Panel pullover and Screw pullout capacity must be checked separately using the screws employed for each particular application when utilizing this load chart.
  6. Effective yield strength has been determined in accordance with section A2.3.2 of the 2012 NAS specification.
  7. The use of any accessories other than those provided by the manufacturer may damage panels, void all warranties and will void all engineering data.
  8. This material is subject to change without notice. Please contact Metl-Span for most current data.

Section Properties

NEGATIVE BENDING

POSITIVE BENDING

Panel
Gauge

Fy
(KSI)

Weight
(PSF)

Ixe
(IN.4/FT.)

Sxe
(IN.3/FT.)

Maxo
(KIP-IN.)

Ixe
(IN.4/FT.)

Sxe
(IN.3/FT.)

Maxo
(KIP-IN.)

29

60*

0.75

0.0215

0.0325

1.2656

0.0238

0.0230

0.9859

26

60*

0.94

0.0309

0.0449

1.8019

0.0382

0.0381

1.6759

24

50

1.14

0.0420

0.0570

1.7060

0.0551

0.0567

1.6968

22

50

1.44

0.0567

0.0739

2.2119

0.0754

0.0787

2.3553

Notes:

*Fy is 80-ksi reduced to 60-ksi in accordance with the 2012 edition of the North American Specification for Design of Cold-Formed Steel Structural Members –A2.3.2.

  1. All calculations for the properties of PBR roof panels are calculated in accordance with the 2012 edition of the North American Specification For Design Of Cold-Formed Steel Structural Members.
  2. Ixe is for deflection determination.
  3. Sxe is for bending.
  4. Maxo is allowable bending moment.
  5. All values are for one foot of panel width.