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<br />A TT ACHED & FREEST ANDING COVERS AND UTILITY SHEDS <br /> <br />SECTION 2 <br /> <br />Table 2.1.1: <br /> <br />Allowable Roof Beam Spans for Carports, Patio Covers, <br />Screen Rooms, and other Open Buildings with Solid Roofs <br />Aluminum Alloy 6063 T-6 <br /> <br />Wind Zone = 102 MPH I 110 MPH I 120 MPH I 125 MPH I 140 MPH <br />Applied Load = 17# / Sq. Fl I 20# / Sq. Fl I 23# / Sq. Fl I 26# / Sq. Fl I 32# / Sq, Fl <br />Load Width . 2" x 3" x 0.050" Hollow lllt <br />5' 9'-9" . g'.{)" 8'-5" 7'-11" 7'_1" <br />6' 8'-11" 8'-3" 7'-8" 7'-2" 6'-6" <br />7' 8'-3" 7'-7" 7'_1" 6'-8" 6'.{)" <br />8' 7'-9" 7'-1" 6'-8" 6'-3" 5'-8" <br />9' 7'-3" 6'-8" 6'-3" 5'-11" 5'--4" <br />10' 6'-11" 6'4" 5'-11" 5'-7" 5'..()" <br />11' 6'-7" 6'-1" 5'-8" 5'4" 4'-10" <br />12' 6'4" 5'-10" 5'-5" . 5'-1" 4'_7" <br />Load Width 2" x 3" x 0.050 Hollow <br />5' 11 '-1" 10'-3" 9'-7" 8'-11" 8'-1" <br />6' 10'-2" 9'4" 8'-9" 8'-2" 7'-5" <br />7' 9'-5" 8'-8" 8'-1" 7'-7" 6'-10" <br />8' 8'-9" 8'-1" 7'-7" 7'-1" 6'-5" <br />9' 8'-3" 7'-8" 7'-1" 6'-8" 6'.{)" <br />10' 7'-10" 7'-3" 6'-9" 6'4" 5'-9" <br />11' 7'-6" 6'-11" 6'-5" 6'-1" 5'-6" <br />12' 7'_2" 6'-7" 6'-2" 5'-10" 5'-3" <br />Load Width 2" x 4" x 0.050 Hollow lllt <br />5' 12'-3" 11 '-3" 10'-6" 9'-11" 8'-11" <br />6' 11 '-2" 10'4" 9'-7" g'.{)" 8'-2" <br />7' 10'4" 9'-7" 8'-11" 8'4" 7'-7" <br />8' g'-8" 8'-11" 8'4" 7'-10" 7'-1" <br />9' 9'-2" 8'-5" 7'-10" 7'-5" 6'-8" <br />10' 8'-8" 7'-11" 7'-5" 7' .{)" 6'4" <br />11' 8'-3" 7'-7" 7'-1" 6'-8" 6'.{)" <br />12' 7'-11" 7'_3" 6'-10" 6'-5" 5'-9" <br />Load Width 2" x 4" x 0,050" Hollow <br />5' 13'-9" 12'-8" 11'-10" 11'-1" 1 O'.{)" . <br />6' 12'-7" 11 '-7" 10'-9" 1 0'-2" 9'-2" <br />7' 11'-7" 10'-8" 9'-11" 9'-5" 8'-6" <br />8' 10'-10" 1 O'.{)" 9'-4" 8'-9" 7'-11" <br />9' 10'-3" 9'-5" 8'-10" 8'-3" 7'-6" <br />10' 9'-9" 8'-11" 8'-4" 7'-10" 7'-111 <br />11 ' 9'-3" 8'-6" 7'-11" 7'-6" 6'-9" <br />12' 8'-10" 8'-2" 7'-8" 7'-2" 6'-6" <br />Load Width 2" x 4" x 0,038" x 0,100" Self Mating Beam <br />5' 14'-6" 13'4" 12'-6" 11'-9" 10'-7" <br />6' 13'-3" 12'-2" 11'4" 10'-8" g'-8" <br />7' 12'-3" 11'-3" 10'-8" 9'-11" 8'-11" <br />8' "'-5' 10'-7" 9'-10" 9'-3" 8'4" <br />9' , U'-' U" 9'-11" 9'-3" 8'-9" 7'-10" <br />10' 10'-3" 9'-5" 8'-10" 8'-3" 7'-6" <br />11' 9'-9" 9'-011 8'-5" 7'-11 " 7'...1" <br />12' 9'4" 8'-7" 81-1" 7'_7" 6'-10" <br /> <br />Example: <br />For 2" x 4" x 0.038" x 0.100" Self-Mating Beam: Beam span between uprights use load width to enter table. <br />For 12' Roof Panel + 2' Overhang; Load Width = LW = 12' /2 + 2' O.H. = 8' : Enter table on left at 8' read <br />allowable span under required load; Thus for 100 M.P.H. wind loadllive load or 17 #/Sq. Ft and Load Width = 8'.{)" <br />Maximum Beam Span for 2" x 4" x 0.038" x 0.100" = ~ 11'-5" ~ <br />Spansdo not include length of knee brace. Add horizontalleng Of lQ1ee brace to above spans for total beam <br />spans. <br /> <br />Lawrence E. Bennett, P.E. <br />CNI. ENt16EER - DeVB.ClIPMEHT OONSI.LTANT <br />P,O, BOX 4388, 80UTH DAYTONA, FL 32121 <br />lB..B'HOfE (804) 787-4714 <br />FAX (804) 787-8558 <br /> <br />SEAL <br /> <br />@ COPYRIGHT 1998 <br />NOT TO BE REPRODUCED .. WHOlE OR .. PART Wl1liOUT TIE WRTTEN PERlISBION OF LAWRENCE E BENETT, P.E. <br /> <br />PAGE <br /> <br />59 <br />