2 X 6 Roof Beam

For more guidance building and installing your rafters see my article on how to build rafters for a shed.

2 x 6 roof beam.

Will i be able to span a concrete slab of 11 6. Here we have a wood framed gable roof. It has been my experience to never use a beam smaller than a two ply 2 x 8. Determining whether to use 2 4 or 2 6 rafters depends entirely on your environment.

This post may contain affiliate links. Refer to sfpa s publication southern pine headers beams download in publications that includes all size selection and allowable load tables. A two 2 by 6 standard beam has actual dimensions of 1 5 by 5 5 inches which would give a section modulus of 1 5 x 5 5 x 5 5 6 7 6 which is not enough for this example. What the code is here but would guess around 2x10 is needed.

Let s consider a basic gable wood roof framing design. This is a pergola thing. No actual roof just slats. Loading conditions are detailed below.

My plan is to add 2x6 supports on to the top plates of the existing house wall where the 2x6 s intersect with the walls. If there is are any questions about anything else then you should contact your supplier or an engineer. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine. Floor beam span tables of residential structural design we will now look at roof rafter and beam design.

Continuing on from part 3. Patio roof maximum beam rafter spans. The formula for the section modulus is beam width times beam depth squared divided by 6. 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.

For each application a pdf download is available. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Also see assumptions for table development. If i tie into a 6 12 pitch roof with 2x6 s.

For more information see our disclosures here. Item 33789 model s206se 1 16. This calculator matches up with 90 of the applications in the 2012 international residential code book. After a year in the sun and rain without support.

No a 2x6 will probably not collapse under the weight of a few. 2 in x 6 in x 16 ft spruce pine fir lumber. I will be setting 4x4 post every 6 with 2 2x6 s with 1 2 osb sandwiched between them as the form to set on top of post. Yes a 16 foot 2x6 may look like a pretzle.

Personally would use a much deeper joist. A 2 by 8 beam would be sufficient. Two 2 by 4 beams together would not be enough.