In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.
Roof framing 2x6 spans.
Live load is weight of furniture wind snow and more.
Panel continuous over two or more spans w long dimension perpendicular to supports.
Dead load weight of structure and fixed loads 15 lbs ft 2.
Span length for 2 6 rafters 2 6 shed roof rafters are enough for nearly any type of shed a homeowner wants to build.
An syp 2 6 rafter at 24 o c.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
2 are indicated below.
Span calculator for wood joists and rafters also available for the android os.
Also available for the android os.
For heavy roofs or in.
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.
1 ft 0 3048 m.
Continuing on from part 3.
Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.
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.
Roof span ft remarks rafter slope 2x6 2x8 2x10 table r502 3 1 2 dead load 10 psf.
Can span up to 13 4.
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.
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.
Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.
Floor beam span tables of residential structural design we will now look at roof rafter and beam design.
Let s consider a basic gable wood roof framing design.
Maximum rafter spans for a patio roof.
Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.
View joist rafter tables.