Roof Framing 2x6 Spans

Continuing on from part 3.

Roof framing 2x6 spans.

Also available for the android os. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.

Roof span ft remarks rafter slope 2x6 2x8 2x10 table r502 3 1 2 dead load 10 psf. Live load is weight of furniture wind snow and more. 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. Span length for 2 6 rafters 2 6 shed roof rafters are enough for nearly any type of shed a homeowner wants to build.

Panel continuous over two or more spans w long dimension perpendicular to supports. View joist rafter tables. Can span up to 13 4. For heavy roofs or in.

An syp 2 6 rafter at 24 o c. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Let s consider a basic gable wood roof framing design. Span calculator for wood joists and rafters also available for the android os.

Maximum rafter spans for a patio roof. Applies to panels 24 or wider table r503 2 1 1 1 joist size spacing allowable span 12 6 8 15 12 3 5 6 24 4 7 9 5 5812 girder and header spans for interior bearing walls. Here we have a wood framed gable roof. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

Dead load weight of structure and fixed loads 15 lbs ft 2. 2 are indicated below. 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. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch.

Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.