2 X 6 Roof Joist Span

It covers 2 common lumber species and sizes at 20 pounds per square foot load.

2 x 6 roof joist span.

This ceiling joist span table is based on the 2012 irc for uninhabitable attics with limited storage. 1 psf lb f ft 2 47 88 n m 2. Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. While a 2 6 might be nearly double the cost of a 2 4 you can likely space the 2x6s further apart negating the added expense of increasing your lumber width.

An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry. Trus joist tji joist specifier s guide tj 4000 july 2019. Can span up to 13 4. Span length for 2 6 rafters.

9 16 tji joists design properties 6 floor span and load tables 7 8 tips for preventing floor noise 8 allowable holes 9 cantilevers 10 11 roof span and load tables 12 13 framing. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no. Also available for the android os. Another option are 2 x 8 rafters spaced 24 inches o c.

2 x 12 s are not listed because you can span pretty much whatever you want. For example the highlighted cell below shows that a 2 x 6 southern yellow pine joist with a grade of 2 and spaced 24 apart can have a maximum span of 10 feet 0 inches 10 0 if you are designing your structure to support a plaster ceiling. Although 2 x 4 s are included in the official table they are not listed because it is never advised to use them. Maximum rafter spans for a patio roof.

2 are indicated below. The table states that 2 x 6 rafters spaced 16 inches on center o c can span a maximum distance of 13 feet 5 inches. 1 ft 0 3048 m. Live load is weight of furniture wind snow and more.

Span calculator for wood joists and rafters also available for the android os. An syp 2 6 rafter at 24 o c. In making your choice consider how you will insulate your insulate your roof. For heavy roofs or in.

Dead load weight of structure and fixed loads 15 lbs ft 2.