2x4 10 0 2x6 14 9 2x8 18 9 2x10 22 2 2x4 8 2 2x6 13 6 2x8 17 2 2x10 20 3 2x12 24 1.
Span distance for 2x6 cedar roof.
The lengths and sizes of joists vary depending on the species and quality of the lumber used.
For example you can span a 1 grade no knots southern yellow pine a greater distance than a 2 grade with knots southern yellow pine.
The larger the deck the larger the joists.
In general terms joists spaced 16 inches on center can span 1 5 times in feet their depth in inches.
Also available for the android os.
Rafter and joist span faq.
2x10 to 15 feet and 2x12 to 18 feet.
Please request publication the u s span book for canadian lumber.
Patio roof maximum beam rafter spans what is max distance between posts pergola main beams span building span tables for 8 x12 x24 western red pergola beam span calculator.
Dimensional lumber deck beam span chart.
20lbs live 20 lbs dead.
The numbers in gray indicate the distance between the support posts.
Span calculator for wood joists and rafters also available for the android os.
Spans for western red cedar dimension lumber used as joists and rafters in residential and commercial structures are available from the western red cedar lumber association the canadian wood council and the national association of home builders.
A 2x8 up to 12 feet.
A double 2x12 beam can span 12 feet.
A 2 2x10 can span 10 feet and so on.
2x6 9 9 2x8 12 10 2x10 16 1 2x12 18 10 2x6 8 6 2x8 11 0 2x10 13 1 2x12 15 5 maximum clear span for rafters w gypsum ceiling standard roof covering.