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WALL PANELS ALLOWABLE POSITIVE AND CONNECTION LOADS (PSF)
CF PANEL SPAN
CONDITION		 DESIGN
CRITERIA		 SUPPORT SPAN (FEET)
5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0
42" WIDE
2" THICK		 TWO
SPANS		 BENDING & SHEAR 66.2 54.1 45.8 39.7 35.0 31.3 26.2 21.6 18.1 15.4 13.3
DEFLECTION (L/180) 97.1 75.4 60.1 48.7 40.1 33.4 28.0 23.7 20.2 17.4 15.0
CONNECTION* 30.8 25.7 22.0 19.3 17.1 15.4 14.0 12.9 11.9 11.0 10.3
CONNECTION** 57.2 47.7 40.8 35.7 31.8 28.6 26.0 23.8 22.0 20.4 19.1
THREE OR
MORE SPANS		 BENDING & SHEAR 65.6 54.2 46.1 40.2 35.6 32.0 29.0 25.2 21.3 18.3 15.9
DEFLECTION (L/180) 97.8 75.3 59.3 47.4 38.4 31.5 26.1 21.8 18.3 15.5 13.2
CONNECTION* 33.8 28.2 24.2 21.1 18.8 16.9 15.4 14.1 13.0 12.1 11.3
CONNECTION** 62.7 52.2 44.8 39.2 34.8 31.3 28.5 26.1 24.1 22.4 20.9
42" WIDE
2.5" THICK		 TWO
SPANS		 BENDING & SHEAR 76.9 62.9 53.0 45.9 40.4 36.1 32.6 29.5 24.6 20.8 17.9
DEFLECTION (L/180) 117.2 92.2 74.5 61.3 51.2 43.3 36.9 31.7 27.3 23.8 20.8
CONNECTION* 32.6 27.2 23.3 20.4 18.1 16.3 14.8 13.6 12.6 11.7 10.9
CONNECTION** 58.9 49.1 42.1 36.8 32.7 29.5 26.8 24.6 22.7 21.0 19.6
THREE OR
MORE SPANS		 BENDING & SHEAR 75.7 62.4 53.0 46.1 40.8 36.6 33.2 30.4 28.0 24.3 21.0
DEFLECTION (L/180) 118.5 92.9 74.5 60.8 50.2 41.9 35.2 29.9 25.5 21.9 18.9
CONNECTION* 35.8 29.8 25.6 22.4 19.9 17.9 16.3 14.9 13.8 12.8 11.9
CONNECTION** 64.6 53.8 46.1 40.4 35.9 32.3 29.4 26.9 24.8 23.1 21.5
42" WIDE
3" THICK		 TWO
SPANS		 BENDING & SHEAR 86.7 70.8 59.7 51.6 45.3 40.4 36.5 33.3 30.1 25.3 21.7
DEFLECTION (L/180) 135.0 107.2 87.4 72.7 61.3 52.3 45.0 39.0 34.1 29.9 26.3
CONNECTION* 34.5 28.7 24.6 21.5 19.1 17.2 15.7 14.4 13.3 12.3 11.5
CONNECTION** 69.7 58.1 49.8 43.6 38.7 34.9 31.7 29.0 26.8 24.9 23.2
THREE OR
MORE SPANS		 BENDING & SHEAR 85.0 69.8 59.3 51.5 45.5 40.8 37.0 33.8 31.2 28.9 25.0
DEFLECTION (L/180) 136.5 108.3 88.1 72.8 60.9 51.5 43.9 37.6 32.5 28.2 24.6
CONNECTION* 37.8 31.5 27.0 23.6 21.0 18.9 17.2 15.7 14.5 13.5 12.6
CONNECTION** 76.4 63.7 54.6 47.8 42.5 38.2 34.7 31.8 29.4 27.3 25.5
42" WIDE
4" THICK		 TWO
SPANS		 BENDING & SHEAR 93.7 76.6 64.6 55.7 48.9 43.5 39.2 35.6 32.7 30.2 28.0
DEFLECTION (L/180) 153.0 123.1 101.8 85.8 73.4 63.6 55.6 48.9 43.4 38.6 34.6
CONNECTION* 41.1 34.3 29.4 25.7 22.8 20.6 18.7 17.1 15.8 14.7 13.7
CONNECTION** 76.1 63.4 54.3 47.6 42.3 38.0 34.6 31.7 29.3 27.2 25.4
THREE OR
MORE SPANS		 BENDING & SHEAR 91.3 74.9 63.4 54.9 48.4 43.3 39.2 35.8 33.0 30.5 28.4
DEFLECTION (L/180) 154.2 124.4 102.9 86.7 74.0 63.8 55.5 48.5 42.7 37.8 33.5
CONNECTION* 45.1 37.6 32.2 28.2 25.0 22.5 20.5 18.8 17.3 16.1 15.0
CONNECTION** 83.4 69.5 59.6 52.1 46.3 41.7 37.9 34.8 32.1 29.8 27.8
42" WIDE
5" THICK		 TWO
SPANS		 BENDING & SHEAR 107.5 88.1 74.3 64.1 56.2 50.0 45.0 40.9 37.4 34.5 32.0
DEFLECTION (L/180) 177.2 143.7 119.6 101.5 87.5 76.3 67.2 59.6 53.2 47.8 43.1
CONNECTION* 41.1 34.3 29.4 25.7 22.8 20.6 18.7 17.1 15.8 14.7 13.7
CONNECTION** 76.1 63.4 54.3 47.6 42.3 38.0 34.6 31.7 29.3 27.2 25.4
THREE OR
MORE SPANS		 BENDING & SHEAR 104.7 85.8 72.6 62.8 55.3 49.4 44.7 40.8 37.5 34.7 32.3
DEFLECTION (L/180) 178.3 144.9 120.9 102.7 88.5 77.1 67.7 59.8 53.2 47.5 42.6
CONNECTION* 45.1 37.6 32.2 28.2 25.0 22.5 20.5 18.8 17.3 16.1 15.0
CONNECTION** 83.4 69.5 59.6 52.1 46.3 41.7 37.9 34.8 32.1 29.8 27.8
42" WIDE
6" THICK		 TWO
SPANS		 BENDING & SHEAR 119.8 98.3 83.1 71.7 62.9 56.0 50.3 45.7 41.8 38.6 35.8
DEFLECTION (L/180) 198.7 161.9 135.4 115.6 100.1 87.7 77.6 69.2 62.1 56.0 50.8
CONNECTION* 41.1 34.3 29.4 25.7 22.8 20.6 18.7 17.1 15.8 14.7 13.7
CONNECTION** 79.6 66.3 56.9 49.8 44.2 39.8 36.2 33.2 30.6 28.4 26.5
THREE OR
MORE SPANS		 BENDING & SHEAR 116.8 95.8 81.0 70.0 61.6 55.0 49.7 45.3 41.6 38.5 35.8
DEFLECTION (L/180) 199.6 163.0 136.6 116.7 101.2 88.7 78.4 69.8 62.5 56.2 50.8
CONNECTION* 45.1 37.6 32.2 28.2 25.0 22.5 20.5 18.8 17.3 16.1 15.0
CONNECTION** 87.3 72.7 62.3 54.6 48.5 43.6 39.7 36.4 33.6 31.2 29.1
  • Based on CF-42 panel with 26 ga. exterior & interior face (min Fy = 33 ksi).
  • Based on attachment with U clip with (2) #12-24 SDS in min 14 ga. steel; or (2) #1/4-14 SDS in min 14 ga. steel; or (2) #1/4-14 STS in min 16 ga. steel. In lieu of self-drilling screws, self-tapping screws may be used.
  • Allowable positive load is the lowest value of panel bending strength, shear strength & deflection limit.
  • Allowable suction load is the lowest value of panel bending strength, shear strength, deflection limit and connection strength for each fastener pattern.
  • Connection* loads are based on side joint attachment only. Connection** loads are based on side joint attachment and additional expansion fasteners on the interior face of the panel.
  • The loads based on panel stress and deflection design criteria are derived from ASTM E-72 structural testing. The allowable loads are calculated with a factor of safety of 2.5 and 3.0 for bending and shear stresses, respectively, and deflection limitation of L/180.
  • The panel and its connection strength was determined from ASTM E1592 testing and the allowable loads are calculated with a factor of safety of 2.0.
  • The clip fastener capacity was determined from manufacturer fastener pullout data and the allowable loads are calculated with a factor of safety of 3.0.
  • The structural capacity of the support members are not considered and must be examined independently.
  • Consult Metl-Span for recommendations on panel profile and gage to resist thermal stresses.
  • For SI: 1 foot = 305 mm, 1 psf = 47.9 Pa, 1 inch = 25.4 mm.