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www.SSMA.com 69Complies With 2009, 2012 and 2015 IBC <br />Section Properties & Ceiling Spans (U-Sections) <br />Table Notes <br />1. Inside bend radius taken as 3/32". <br />2. See page 5 for additional table notes. <br />Table Notes <br />½" <br />¾", 1 ½" <br />Y <br />X <br />Allowable Ceiling Spans (U-Sections) - L/240 <br />Section Fy (ksi)Spans <br />4 psf 6 psf 13 psf *15 psf * <br />Channel Spacing (in) on center Channel Spacing (in) on center Channel Spacing (in) on center Channel Spacing (in) on center <br />24 36 48 60 72 24 36 48 60 72 24 36 48 60 72 24 36 48 60 72 <br />75U050-54 33 Single 3' 11" 3' 5" 3' 1" 2' 10" 2' 8" 3' 5" 3' 0" 2' 8" 2' 6" 2' 4" 2' 7" 2' 4" 2' 1" 1' 11" 1' 9" 2' 6" 2' 2" 2' 0" 1' 10" 1' 8"Multiple 4' 10" 4' 2" 3' 10" 3' 7" 3' 4" 4' 2" 3' 8" 3' 4" 3' 1" 2' 10" 3' 3" 2' 9" 2' 4" 2' 1" 1' 11" 3' 1" 2' 7" 2' 2" 2' 0" 1' 9" <br />150U050-54 33 Single 5' 6" 4' 10" 4' 5" 4' 1" 3' 10" 4' 10" 4' 3" 3' 10" 3' 7" 3' 5" 3' 9" 3' 3" 3' 0" 2' 9" 2' 7" 3' 7" 3' 2" 2' 10" 2' 7" 2' 5" <br />Multiple 7' 1" 6' 2" 5' 8" 5' 3" 4' 11" 6' 2" 5' 5" 4' 11" 4' 7" 4' 4" 4' 10" 4' 2" 3' 9" 3' 4" 3' 0" 4' 7" 4' 0" 3' 6" 3' 1" 2' 9" <br />200U050-54 33 Single 5' 10" 5' 1" 4' 8" 4' 4" 4' 1" 5' 1" 4' 6" 4' 1" 3' 10" 3' 7" 4' 0" 3' 6" 3' 2" 3' 0" 2' 10" 3' 10" 3' 4" 3' 1" 2' 10" 2' 8"Multiple 7' 5" 6' 6" 5' 11" 5' 6" 5' 2" 6' 6" 5' 8" 5' 2" 4' 10" 4' 7" 5' 1" 4' 5" 4' 0" 3' 9" 3' 6" 4' 10" 4' 3" 3' 10" 3' 7" 3' 2" <br />250U050-54 33 Single 6' 1" 5' 4" 4' 10" 4' 6" 4' 3" 5' 4" 4' 8" 4' 3" 4' 0" 3' 9" 4' 2" 3' 8" 3' 4" 3' 1" 2' 11" 4' 0" 3' 6" 3' 2" 3' 0" 2' 10"Multiple 7' 9" 6' 9" 6' 2" 5' 9" 5' 5" 6' 9" 5' 11" 5' 5" 5' 0" 4' 9" 5' 3" 4' 7" 4' 3" 3' 11" 3' 9" 5' 0" 4' 5" 4' 0" 3' 9" 3' 7" <br />Allowable Ceiling Spans (U-Sections) - L/360 <br />Section Fy (ksi)Spans <br />4 psf 6 psf 13 psf *15 psf * <br />Spacing (in) on center Spacing (in) on center Spacing (in) on center Spacing (in) on center <br />24 36 48 60 72 24 36 48 60 72 24 36 48 60 72 24 36 48 60 72 <br />75U050-54 33 Single 3' 5" 3' 0" 2' 8" 2' 6" 2' 4" 3' 0" 2' 7" 2' 4" 2' 2" 2' 1" 2' 4" 2' 0" 1' 10" 1' 8" 1' 7" 2' 2" 1' 11" 1' 9" 1' 7" 1' 6"Multiple 4' 2" 3' 8" 3' 4" 3' 1" 2' 11" 3' 8" 3' 2" 2' 11" 2' 8" 2' 7" 2' 10" 2' 6" 2' 3" 2' 1" 1' 11" 2' 8" 2' 4" 2' 2" 2' 0" 1' 9" <br />150U050-54 33 Single 5' 6" 4' 10" 4' 5" 4' 1" 3' 10" 4' 10" 4' 3" 3' 10" 3' 7" 3' 5" 3' 9" 3' 3" 3' 0" 2' 9" 2' 7" 3' 7" 3' 2" 2' 10" 2' 7" 2' 5" <br />Multiple 7' 1" 6' 2" 5' 8" 5' 3" 4' 11" 6' 2" 5' 5" 4' 11" 4' 7" 4' 4" 4' 10" 4' 2" 3' 9" 3' 4" 3' 0" 4' 7" 4' 0" 3' 6" 3' 1" 2' 9" <br />200U050-54 33 Single 5' 10" 5' 1" 4' 8" 4' 4" 4' 1" 5' 1" 4' 6" 4' 1" 3' 10" 3' 7" 4' 0" 3' 6" 3' 2" 3' 0" 2' 10" 3' 10" 3' 4" 3' 1" 2' 10" 2' 8" <br />Multiple 7' 5" 6' 6" 5' 11" 5' 6" 5' 2" 6' 6" 5' 8" 5' 2" 4' 10" 4' 7" 5' 1" 4' 5" 4' 0" 3' 9" 3' 6" 4' 10" 4' 3" 3' 10" 3' 7" 3' 2" <br />250U050-54 33 Single 6' 1" 5' 4" 4' 10" 4' 6" 4' 3" 5' 4" 4' 8" 4' 3" 4' 0" 3' 9" 4' 2" 3' 8" 3' 4" 3' 1" 2' 11" 4' 0" 3' 6" 3' 2" 3' 0" 2' 10"Multiple 7' 9" 6' 9" 6' 2" 5' 9" 5' 5" 6' 9" 5' 11" 5' 5" 5' 0" 4' 9" 5' 3" 4' 7" 4' 3" 3' 11" 3' 9" 5' 0" 4' 5" 4' 0" 3' 9" 3' 7" <br />*Loads that exceed 10 psf limit require an approved CP60 coating. <br />*Loads that exceed 10 psf limit require an approved CP60 coating. <br />U-Channel Section Properties <br />Section Fy (ksi) <br />Design Thickness (in) <br />Gross Properties Effective Properties <br />Area (in2)Weight (lb/ft)Ix (in4)Rx (in)Iy (in4)Ry (in)Ix (in4)Sx (in3)Ma (in-k)Va (lb) <br />75U050-54 33 0.0566 0.087 0.30 0.007 0.288 0.002 0.155 0.007 0.019 0.45 315150U050-54 33 0.0566 0.129 0.44 0.039 0.547 0.003 0.144 0.039 0.052 1.22 840200U050-54 33 0.0566 0.157 0.54 0.079 0.709 0.003 0.136 0.079 0.079 1.87 1190250U050-54 33 0.0566 0.186 0.63 0.139 0.866 0.003 0.128 0.139 0.111 2.64 1540 <br />1. Multiple span indicates two or more equal spans with channel <br />continuous over interior supports. <br />2. Listed spans are based on unbraced compression flanges. <br />3. Web crippling check is based on ¾" bearing at end and interior <br />supports. No bearing stiffeners are required. <br />4. See page 5 for additional table notes.