A 13 pieces of 2 4 lumber 144 long bottom rafters.
Garage roof rafter design.
Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.
Let s consider a basic gable wood roof framing design.
Floor beam span tables of residential structural design we will now look at roof rafter and beam design.
There are certain situations where offset is more practical than opposed rafters which usually occurs on very.
Our plans can be built in most us locations.
Offset rafter framing can be done on garage roof framing if you are building a garage from plans that are sealed by a professional architect or structural engineer licensed within the jurisdiction you are building a garage in if those designs specify rafter offset.
Our garage plans are to designed to irc building code conventional framing details.
Slope size of rafters spacing length of overhang location and size of ceiling joists size of ridge beam and any other bearing beams and load weight.
Here we have a wood framed gable roof.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.
C 30 pieces of 2 4 lumber 97 1 4 14 pieces 6 1 2 rafters d 14 pieces of 3 4 tongue and groove plywood sheets 4 8 decking.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.
If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center.
Your garage plans should include the following information to aid you when ordering the roof trusses.
Many of the plans use manufactured roof trusses and others use conventional rafter and joist framing.
Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs.
Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run.
It is always better to have a large rafter rather than be concerned with a sagging roof.
All behm design garage plans include foundation plans and details using industry standard materials and assemblies.
Just enter the dimensions of the roof rise and run to get started.
B 2 pieces of 2 4 lumber 36 1 4 1 piece of 2 6 lumber 260 top ridge.
Continuing on from part 3.
In order to build a garage roof you need to use the following.
If you re building rafters and aren t sure where to start when determining the length of your lumber you re in the right place our rafter stock size calculator shows you how long your rafters should be so you ll know what you need in terms of framing lumber dimensional lumber studs and more.
