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ALLOWABLE FLOOR SPANS <br />ALLOWABLE SPANS FOR PWI JOISTS — 40 PSF LIVE LOAD AND 10 PSF DEAD LOAD <br />Joist <br />PWI Joist <br />Simple Span <br />Multiple Span <br />PWI <br />Series <br />Depth <br />12" D.C. <br />16" D.C. <br />19.2" D.C. <br />24" o.c. <br />IZ" o.t. <br />IV%*. <br />11.2" o.c. <br />24' D.C. <br />16'- 3' <br />14'- 10' <br />13'- 3' <br />PM 20 <br />I 1%, <br />19'- 10' <br />18'- 2' <br />171- 2' <br />151- 5' <br />21'- 8' <br />181- 10' <br />16'- 9' <br />13'- 5' <br />9K' <br />17'-1' <br />15'-8' <br />1d'-10' <br />13-10 <br />18'-7' <br />17'-0' <br />16'_ 1' <br />15'-0' <br />PWI30 <br />11l1' <br />20'- 6' <br />181- 9' <br />17'- 8' <br />16'- 6' <br />22'- 4' <br />20'- 5' <br />I B'- 10' <br />15'- 0' <br />9111' <br />18'- 0' <br />16'- 5' <br />15'- 6- <br />14'- 1' <br />19'- 7' <br />17'- 2' <br />15'- 8' <br />14'- 0' <br />1114" <br />Z�'_ 5 <br />191_ 7• <br />18•_ 2• <br />16•_ 3• <br />23•_ 0• <br />191_ I I' <br />13'-2' <br />16•_ 2• <br />P67 40 <br />24'- 4' <br />22'- 1' <br />20'- 2' <br />18'- 0' <br />25'- 6' <br />22'-1' <br />2G'- 1 • <br />18'- 0' <br />.14' <br />16' <br />21'- 0' <br />21'- 11' <br />191- 7' <br />27'- 8' <br />23'- 11' <br />211- 10' <br />19'- 6' <br />_ <br />9K' <br />17'- 10' <br />16'- 4' <br />15'- 5' <br />14'- 5' <br />191- 5' <br />17'- 9' <br />16'- 9' <br />15'- 7' <br />1 PA' <br />21'- 4' <br />19'- 6' <br />18'- 5' <br />17'- 2' <br />23'-3- <br />2 V- 2' <br />20'- 0' <br />16'- 1' <br />Pill 50 <br />14" <br />24'- 4' <br />22'- 2' <br />2F- 0' <br />19'- 7' <br />26'- 6' <br />24'- 2' <br />201- L' <br />16'- 1' <br />16' <br />27'- 0' <br />8' <br />23'- 4' <br />20'- 2' <br />29'- 6' <br />24'- 3' <br />20'- 7' <br />16'- 1' <br />9K' <br />18'-11' <br />17_4' <br />16'- d' <br />13-1 <br />18'- 10' <br />17'- 9' <br />16'- 5' <br />11!5' <br />22'_ 7" <br />20'-S' <br />19'-6' <br />IIf- 2' <br />24'-8' <br />22'-6' <br />2V-2' <br />19'-1' <br />PWI 60 <br />14' <br />25'- 9' <br />23'- 6' <br />22'- 2' <br />201- 8' <br />281- 0' <br />25'- 7' <br />23'- 8' <br />191- 9' <br />16' <br />28'- 6' <br />26'- 0' <br />24'- 7' <br />22'- 10' <br />311- 1' <br />28'- 1' <br />24'- 9' <br />19'- 9' <br />IIA" <br />23'-4- <br />7F- 3' <br />20'- P <br />10-0 <br />25'- 5' <br />23'- 2' <br />2l'- 10' <br />18'- 6' <br />I'M 70 <br />14' <br />26'- 6' <br />24'- 2' <br />22'- 9' <br />21'- 2' <br />28'- 10' <br />26'- 3' <br />23'- 2' <br />18'- 6• <br />16' <br />29'- 3' <br />26•- 8' <br />25'- 2' <br />23'- 1' <br />311- 11' <br />27'- 10' <br />23'- 2' <br />18'- 6' <br />1 IA" <br />26'- 4' <br />23'- 11' <br />22'- 6- <br />20'- 11' <br />28'- 8' <br />26' 0' <br />24'- 6' <br />21'- 10' <br />PM 93 <br />I4' <br />29-10' <br />27'- 2' <br />25'- 7' <br />23'- 9' <br />32'- 6' <br />29'- 6' <br />27'- 10' <br />23'- 11' <br />16' <br />13'_ 2" <br />22- 2' <br />28'-3' <br />25'-5' <br />36'-0' <br />32'-8' <br />30'-0' <br />23'-11' <br />9K' <br />191- B' <br />177- 11' <br />16-- 11- <br />I5'- 9' <br />21,- 5' <br />19'- 6' <br />18'- 4' <br />17'- 1' <br />11'A' <br />23'-4' <br />21'-4' <br />20'-1' <br />18'-9' <br />25'-5' <br />23'-2' <br />21'-10' <br />20'-4' <br />PWI 77 <br />14' <br />26'- 6' <br />24'- 2' <br />22'- 10' <br />21'- 3' <br />281- 11' <br />' 26'- d' <br />24'- 10' <br />22'- 0' <br />16' <br />29'- 4' <br />26'- 9' <br />25'- 3' <br />23'- 6' <br />32'- 0' <br />29'- 2' <br />27'- 6' <br />22'- 0' <br />9K' <br />22'- 2' <br />20'- 2' <br />19•_ 0• <br />17'- B' <br />24'- 1- <br />21'- 11' <br />20' 7- <br />19'- 2- <br />1 IU' <br />26'- 4' <br />Z3'- I1' <br />22'- 7' <br />21'- 0' <br />28'- 8' <br />16'- I' <br />24'- 6' <br />22'- 9' <br />PWI 90 <br />14' <br />29'-10' <br />27'- 2' <br />25'- 7' <br />23•- 9' <br />32'- 7' <br />29'- 7' <br />27'- 10' <br />25'-10' <br />16' <br />33'-0' <br />30'-1' <br />28'-4' <br />26'-4' <br />36'-0' <br />32'-9: <br />30'-10' <br />26'-T <br />ALLOWABLE SPANS FOR PWI JOISTS — 40 PSF LIVE LOAD AND 20 PSF DEAD LOAD <br />PWI Joist <br />PWI Joist <br />Simple Spun <br />Multiple Span <br />Series <br />Depth <br />12" sic <br />16" o.c. <br />19.2" ox. <br />24" D.C. <br />12" D.C. <br />16" D.C. <br />19.2' D.C. <br />24' D.C. <br />9%, <br />16'-7' <br />14'-11' <br />13'-7- <br />12'-2' <br />17'-2' <br />14'-10' <br />13'-6' <br />PWI20 <br />11 'A' <br />19'-10' <br />17'- 3' <br />15'- 9' <br />131- 8' <br />19'- 10' <br />16'- 9' <br />131- 11' <br />17'- I' <br />15'- 8' <br />14'-10' <br />13'- 9' <br />18'- 7' <br />16'-10' <br />15'- 4' <br />12'- 6' <br />PWI 30r <br />III20'- <br />6' <br />18'- 9' <br />17'- 8' <br />IS'- 7' <br />22'- 4' <br />18'- 10, <br />15'- 8' <br />12'- 6' <br />1 S'9-14'- <br />4' <br />12'-10' <br />18'-1' <br />15'- 8' <br />1 d'- 3' <br />12'-9' <br />18'- 2' <br />16'- 7' <br />14'-10' <br />21'- 0' <br />18'-2' <br />16'- 6' <br />14'- 9' <br />R`n d021'-0' <br />23'-4- <br />20'- 2' <br />18'-5' <br />I6'- 5' <br />23'- 3' <br />20'- 1' <br />18'-4' <br />16'- 4' <br />25'- 3' <br />Zl'-11' <br />20'- 0' <br />1 T- 10' <br />25'- 3' <br />19'-5' <br />2'0'19'- <br />17 - 9' <br />1 <br />16'-6 <br />16'- 5' <br />13'- 5' <br />17'-1016-415'- 5' 14'- 5' <br />4' <br />19'- 6' <br />1B'-5' <br />16'-9' <br />23'- 3' <br />20'- 2' <br />16'-9 <br />13'- 5' <br />P.M SO21'- <br />24'- 4' <br />22'- 2' <br />21'- 0' <br />16'-9' <br />26'- 6' <br />20'- 2' <br />16'- 9' <br />13'- 5' <br />271- 0' <br />Z4'- 8' <br />2I'- 0' <br />16'- 9' <br />27'-0' <br />20'- 2' <br />16'- 9' <br />13'- 5' <br />9w <br />I8'-11' <br />1 T- 4' <br />16'-4- <br />15'- 1- <br />20'- 8' <br />W- 5' <br />16'- 9' <br />141- 2' <br />11'W <br />22'- 7' <br />20'- 8' <br />19'- 6' <br />17'- 5' <br />24'- 8' <br />2 V- 4' <br />19'- 5' <br />16'- 5' <br />PWI 60 <br />14' <br />25'-9' <br />23- 6' <br />21•_8• <br />19•_4• <br />27'- 4' <br />23•-8• <br />20'- 7' <br />16'- 5* <br />76' <br />28'- 6' <br />25'- 9' <br />23'- 6' <br />19'-10' <br />29'- 8' <br />24'- 9' <br />20'- 7' <br />16'- 5' <br />11'A' <br />23'- 4' <br />21'- 3' <br />20'-1' <br />18'- 8' <br />25'- 5' <br />23'- 2' <br />19'- 3' <br />15'- 4' <br />PWI 70 <br />14' <br />26'-6' <br />24'-2' <br />22'-9' <br />19'-2' <br />28'-10' <br />23'-2' <br />19'-3' <br />IS'-4' <br />16' <br />29'- 3' <br />26'-8- <br />24'- 0' <br />19'- 2' <br />30'- it, _._. <br />23'- 2' <br />19'- 3' <br />15'- 4' <br />11'A' <br />26'- C <br />23'-11' <br />22'- 6' <br />20'-11' <br />28'- 8' <br />26'- 0' <br />22'- 9' <br />18'- 2' <br />PWI 93 <br />14- <br />29'-10' <br />27'-2- <br />25'- 7' <br />21'- 2' <br />32'- 6' <br />29•- 6' <br />24'- 11' <br />19'- 11' <br />16' <br />33'-0' <br />30'-0' <br />26- 6* <br />21'-2' <br />36'-0' <br />30'-0' <br />24'-11' <br />19'-11' <br />9K' <br />19'- 8' <br />17'-11' <br />16'- 11' <br />15'- 9' <br />21'- 5' <br />I9'- 6' <br />18'- 4' <br />17'- 1' <br />11%* <br />23'- 4' <br />21'- 4' <br />20'-1' <br />18'- 9' <br />25'- 5' <br />23'-2' <br />2l'-10' <br />18'- 4' <br />I"M 77 <br />14' <br />26'- 6' <br />24'- 2' <br />22-10' <br />21'- 3' <br />28'-11' <br />26'- 4' <br />22'- 11- <br />18'- 4' <br />16' <br />29'-4' <br />26'-9- <br />25'-3' <br />23'-0' <br />32'-0' <br />27'-7' <br />22'-11' <br />18'-4' <br />20'- 2' <br />19'-0' <br />17'- 8' <br />24'- 1' <br />21'-11' <br />20'- 7' <br />19'- 2' <br />11!4' <br />26'-d' <br />23'-11' <br />22'-7' <br />21'-0' <br />28'-8' <br />26'-1' <br />24'-6' <br />22'-2' <br />PWI 90 <br />14' <br />29'-10' <br />27'- 2' <br />25'- 7' <br />23'- 2' <br />32'- 7' <br />29'- 7' <br />27'- 9' <br />22'- 2' <br />30'-1' <br />28'-4- <br />23'-2- <br />36'- 0' <br />32'- 9' <br />27'- 9' <br />22'- 2' <br />Nobs: <br />1. Table values opply to uniformly loaded FM joists. Use beam sizing safhvote to <br />analyze conditions ouhide of the scope of this table such as cantilevers and <br />concentrated loods. <br />2. Experience hot shown that Boors designed to the code live load deflection limit <br />of U360 are then considered to be poor performers. These table values are <br />based on o more demanding live load defledion limit of U48D. <br />3. Span is measured from face to lace of supports. Use beam sizing snflwore to <br />analyze multiple span PWI joists 3 the length of any soon is less than half the <br />length of on adjacent sport. <br />A. Table values assume 1'.' nominal sheathing Is glued and roiled to the <br />PWI joists, Reduce spans by 12' if sheathing is nailed only. <br />5. Minimum end bearing length is 1K: Minimum intermediate bearing length <br />is 3W <br />