88888

8K8K8K8K8K

10K10K10K10K10K

12K12K12K12K12K

14K14K14K14K14K

16K16K16K16K16K

18K18K18K18K18K

Span (ft)Span (ft)Span (ft)Span (ft)Span (ft)

Jois

t D

esig

natio

nJois

t D

esig

natio

nJois

t D

esig

natio

nJois

t D

esig

natio

nJois

t D

esig

natio

n

Approximate Span Table for K-Series Open Web JoistsApproximate Span Table for K-Series Open Web JoistsApproximate Span Table for K-Series Open Web JoistsApproximate Span Table for K-Series Open Web JoistsApproximate Span Table for K-Series Open Web Joists

20K20K20K20K20K

24K24K24K24K24K

22K22K22K22K22K

26K26K26K26K26K

28K28K28K28K28K

30K30K30K30K30K

1212121212 1616161616 2020202020 2424242424 2828282828 3232323232 3636363636 4040404040 4444444444 4848484848 5252525252 5656565656 6060606060

Assumptions:Assumptions:Assumptions:Assumptions:Assumptions:

1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.

2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 1.67 ft o.c. and 3.67 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 1.67 ft o.c. and 3.67 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 1.67 ft o.c. and 3.67 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 1.67 ft o.c. and 3.67 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 1.67 ft o.c. and 3.67 ft o.c.

2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.

1414141414

18LH18LH18LH18LH18LH

20LH20LH20LH20LH20LH

24LH24LH24LH24LH24LH

28LH28LH28LH28LH28LH

32LH32LH32LH32LH32LH

36LH36LH36LH36LH36LH

Span (ft)Span (ft)Span (ft)Span (ft)Span (ft)

Jois

t D

esig

natio

nJois

t D

esig

natio

nJois

t D

esig

natio

nJois

t D

esig

natio

nJois

t D

esig

natio

n

Approximate Span Table for LH & DLH Series Open Web JoistsApproximate Span Table for LH & DLH Series Open Web JoistsApproximate Span Table for LH & DLH Series Open Web JoistsApproximate Span Table for LH & DLH Series Open Web JoistsApproximate Span Table for LH & DLH Series Open Web Joists

40LH40LH40LH40LH40LH

48LH48LH48LH48LH48LH

44LH44LH44LH44LH44LH

52DLH52DLH52DLH52DLH52DLH

56DLH56DLH56DLH56DLH56DLH

60DLH60DLH60DLH60DLH60DLH

2424242424 3434343434 4444444444 5454545454 6464646464 7474747474 8484848484 9494949494 104104104104104 114114114114114 124124124124124 134134134134134 144144144144144

Assumptions:Assumptions:Assumptions:Assumptions:Assumptions:

1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.1. These spans are based upon the SJI Specification, dated 1998.

2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 2.5 ft o.c. and 3.8 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 2.5 ft o.c. and 3.8 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 2.5 ft o.c. and 3.8 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 2.5 ft o.c. and 3.8 ft o.c.2. Floors: Based upon 100 psf LL and 50 psf DL, the spacing of joists is between 2.5 ft o.c. and 3.8 ft o.c.

2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.2. Roofs: Based upon 30 psf LL and 20 psf DL, the spacing of joists is between 4.0 ft o.c. and 11 ft o.c.

64DLH64DLH64DLH64DLH64DLH

68DLH68DLH68DLH68DLH68DLH

72DLH72DLH72DLH72DLH72DLH