2 X 6 Roof Beam

After a year in the sun and rain without support.

2 x 6 roof beam.

Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video. For more guidance building and installing your rafters see my article on how to build rafters for a shed. Loading conditions are detailed below. Let s consider a basic gable wood roof framing design.

Here we have a wood framed gable roof. No actual roof just slats. 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. Also see assumptions for table development.

Will i be able to span a concrete slab of 11 6. If i tie into a 6 12 pitch roof with 2x6 s. 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. This calculator matches up with 90 of the applications in the 2012 international residential code book.

Item 33789 model s206se 1 16. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. 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. It has been my experience to never use a beam smaller than a two ply 2 x 8.

For each application a pdf download is available. What the code is here but would guess around 2x10 is needed. 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. This is a pergola thing.

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. This post may contain affiliate links. Most interior beams need to include the roof load.

Determining whether to use 2 4 or 2 6 rafters depends entirely on your environment. Yes a 16 foot 2x6 may look like a pretzle. Personally would use a much deeper joist. If there is are any questions about anything else then you should contact your supplier or an engineer.

A 2 by 8 beam would be sufficient. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine. 2 in x 6 in x 16 ft spruce pine fir lumber. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.

Two 2 by 4 beams together would not be enough. Patio roof maximum beam rafter spans. Continuing on from part 3.