Joists are separated by type and designated by letters.
Steel roof joist span table.
Spans are based upon continuous support of compression flange over the full length of the joist.
All vulcraft joists and joist girders are designed and manufactured in accordance to the exacting specifications of the steel joist institute.
T radeready s teel joist span tables are to be utilized in conjunction with the notes below.
Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.
Prostud limiting height charts new clarkdietrich itools structural stud lookup tool interior wall heights w structural framing interior.
S pan table notes.
Also available for the android os.
For two equal spans the listed span is the center to center distance from either end to the center support with the joist continuous over the center support.
1 spans are based on continuous lateral support of the compression flange.
The k and kcs joists are used for shorter span conditions where lighter loads are required.
K kcs lh dlh and slh.
Calculated allowable properties are based upon aisi s100 07 north american specification for the design of cold formed steel structural members.
Bridging selection table for kcs joists joist designation bridging table section number joist designation bridging table section number osha tables a and b erection bridging joist span span joist 12k1 23 0 30k9 45 0 14k1 27 0 30k10 50 0 16k2 29 0 30k11 52 16k3 30 0 30k12 54 0 16k4 32 0 18kcs2 35 0.
Interior framing use iprostud in clarkdietrich itools to quickly lookup the interior framing system you need.
Allowable limiting heights spans contact clarkdietrich technical services at 888 437 3244 for any questions on tables below.
Dietrich metal framing shall in no way be deemed to assume any professional responsibility and hereby disclaims any and all such liability or obligation.
These joists are typically used in roof.
For other grades and species and for other loading conditions refer to the awc stjr.
Table r802 4 1 ceiling joist spans for common lumber species uninhabitable attics without storage live load 10 psf l δ 240.
For an in depth review of all of this information the sji suggests the current compilation of all years specifications and load tables 90 years of open web steel joist construction available on this site at 90 years.
Spans for ceiling joists shall be in accordance with tables r802 4 1 and r802 4 2.
In depth catalogs feature the latest information and are available in convenient interactive pdf format.
Load table pdfs are best viewed in adobe acrobat reader.
Span calculator for wood joists and rafters also available for the android os.
Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs.
