2x6 Ceiling Joist Span Table

Although 2 x 4 s are included in the official table they are not listed because it is never advised to use them.

2x6 ceiling joist span table. Table 15 ceiling joists 10 psf live load 5 psf dead load 240 deflection. 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.

In the article it is stated that a 12 joist span corresponds to the double beam span a length equal to the 2x width. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. Span calculator for wood joists and rafters also available for the android os.

2 x 12 s are not listed because you can span pretty much whatever you want. Maximum spans in feet inches. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

Also available for the android os. If this is the case with your structure use the floor joist table to determine maximum joist length load. However this seems to match the 6 joist span column of the table.

Michael t 5 17 2017 12 53 19 am reply. For southern pine. It covers 2 common lumber species and sizes at 20 pounds per square foot load.

This ceiling joist span table is based on the 2012 irc for uninhabitable attics with limited storage. Dense structural select structural nondense select structural no 1 dense no 1 nondense no 2 dense no 2 nondense no 3 12. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.