How Far Apart Should Roof Rafters Be Spaced

An syp 2 6 rafter at 24 o c.

How far apart should roof rafters be spaced.

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. For more information see our disclosures here. This post may contain affiliate links. If you look at our rafter spacing chart you ll notice that 2x4s can span an 8 gap on a 4 12 roof.

But they do tend to space rafters in one of several industry standard increments typically either 12 16 or 24 inches apart. To determine how far apart to set rafters measure the width of the metal panel and then the width of the first hill and valley of the panel. These spacing intervals are measured on center meaning that the measurement is taken from the center of one rafter s horizontal surface to the center of the next rafter. Patio roof maximum beam rafter spans.

Span length for 2 6 rafters. Wider panels allow for greater spacing between rafters. A metal roof must also allow for some overlap on each side of the panels which will reduce the effective width of the panel. 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. With this set of specs we are looking at a rafter length of 5 3. Can span up to 13 4.