2 X 6 Roof Joist Span

Dead load weight of structure and fixed loads 15 lbs ft 2. 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. This ceiling joist span table is based on the 2012 irc for uninhabitable attics with limited storage.

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Fire safe construction 3 floor performance and tj pro rating 4 5 section 1.

2 x 6 roof joist span.

Live load is weight of furniture wind snow and more. For heavy roofs or in. 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. Span length for 2 6 rafters.

In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Also available for the android os. An syp 2 6 rafter at 24 o c. 2 are indicated below.

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. 2 6 shed roof rafters are enough for nearly any type of shed a homeowner wants to build. 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. For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2.

It covers 2 common lumber species and sizes at 20 pounds per square foot load. 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. Can span up to 13 4.

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. 1 ft 0 3048 m. Another option are 2 x 8 rafters spaced 24 inches o c. 1 psf lb f ft 2 47 88 n m 2.

Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no. 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. Trus joist tji joist specifier s guide tj 4000 july 2019.

In making your choice consider how you will insulate your insulate your roof.