Roof Framing 2x6 Spans

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.

Roof framing 2x6 spans.

Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no. Can span up to 13 4. Here we have a wood framed gable roof. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall.

Span calculator for wood joists and rafters also available for the android os. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. 2 are indicated below. Live load is weight of furniture wind snow and more.

1 psf lb f ft 2 47 88 n m 2. Let s consider a basic gable wood roof framing design. 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. Span length for 2 6 rafters 2 6 shed roof rafters are enough for nearly any type of shed a homeowner wants to build.

Continuing on from part 3. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. View joist rafter tables. Roof span ft remarks rafter slope 2x6 2x8 2x10 table r502 3 1 2 dead load 10 psf.

Maximum rafter spans for a patio roof. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. 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. Dead load weight of structure and fixed loads 15 lbs ft 2.

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. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. Panel continuous over two or more spans w long dimension perpendicular to supports.

For heavy roofs or in. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. 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.