2 X 6 Roof Beam

2 in x 6 in x 16 ft spruce pine fir lumber.

2 x 6 roof beam.

The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Item 33789 model s206se 1 16. This post may contain affiliate links. Most interior beams need to include the roof load.

The formula for the section modulus is beam width times beam depth squared divided by 6. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine. This calculator matches up with 90 of the applications in the 2012 international residential code book. Yes a 16 foot 2x6 may look like a pretzle.

Here we have a wood framed gable roof. If i tie into a 6 12 pitch roof with 2x6 s. Patio roof maximum beam rafter spans. 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.

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. For each application a pdf download is available. Loading conditions are detailed below.

Also see assumptions for table development. Will i be able to span a concrete slab of 11 6. If you do opt to use 2 4 shed rafters for your roof construction you will always use a 2 6 ridge beam even though the rafters will be 2 4. For more information see our disclosures here.

Personally would use a much deeper joist. 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. What the code is here but would guess around 2x10 is needed. Determining whether to use 2 4 or 2 6 rafters depends entirely on your environment.

It has been my experience to never use a beam smaller than a two ply 2 x 8. If there is are any questions about anything else then you should contact your supplier or an engineer. Two 2 by 4 beams together would not be enough. No actual roof just slats.

This is a pergola thing. Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video. After a year in the sun and rain without support. No a 2x6 will probably not collapse under the weight of a few.

Continuing on from part 3. 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 more guidance building and installing your rafters see my article on how to build rafters for a shed.