Floor truss span tables.
Wood roof truss span tables.
Span tables for jois ts and rafters american wood council 4 span tables for joists and rafters american wood council design criteria.
Bottom chord dead load 5 psf.
You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
Keep in mind that these tables are for estimations only.
72 5 0 mi ni m u m girder floor truss floor truss jacks a a bearing wall girder floor truss floor truss jacks bearing wall cantilevered floor truss two 2x rim joists 24 max.
Limited to span in inches divided by 360.
These allowable spans are based on nds 91.
Also available for the android os.
Maximum deflection is limited by l 360 or l 480 under live load.
You can use sbca s span charts to roughly determine truss sizes available.
05425 cold formed steel trusses roof truss spans every trussteel roof truss is a custom design based upon the unique load span bearing use and code criteria of a particular project.
Span tables use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.
Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00.
Spacing of trusses are center to center in inches.
Rafter span tables use these two tables for roof rafters with a slope of 3 in 12 or less.
Joists rafters simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
Top chord dead load 10 psf.
Roof floor truss manual 7 31 08 10 43 am page 12.
Span calculator for wood joists and rafters also available for the android os.
Included are a series of representative roof truss span tables that will give you an idea of the truss spans available for a particular load condition load duration lumber type and truss configuration.
The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses.
Use these two tables for roof rafters with a slope greater than 3 in 12.
Floor truss span tables.
Joist and rafter span tables.
And parallel to floor truss span strongback lateral supports 24 max.
View joist rafter tables.
Strength live load of 30 psf plus dead load of 10 psf determines the required bending design value.
Center line chase 24 max.
Deflection for 30 psf live load.