Octagon Roof Framing Detail

18 use 2 x 6 etc.

Octagon roof framing detail.

Using the chappell master framing square line 1 under 8 12 6159. Watch this video for a virtual tour of an octagonal roof framing model created in sketchup for the exploring octagonal roof framing tutorial at the digital. Long and combine to create a base width of 9 ft. If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12.

The hip rafter angle is not the same as a 90 plan angle. The drawing shows standard details for an octagon wooden gazebo. Or they could have purchased a chappell master framing square that has the hexagon and octagon roof framing information printed on the square. Oval octagon rectangular and square gazebos number of pieces and framing of floors and roofs larger and smaller gazebos i e.

How to draw any polygon with an compass straight edge. This gazebo looks like a scene out of paradise. Figure 2 2 roof framing terms. One half of 45 is 22 5.

There are many differences between the gazebo shown and others many features will change between. What more could your heart desire in a gazebo. The tangent of 22 5 41421 laying out an octagon using a framing square we would take 12 on the blade and the number to be taken on the tongue is 12 41421 which is 4 97 or nearly 5. 8 10 roof rafters are 2 x 4.

The central angle for an octagon roof is 45. The octagon plan angle is 67 50. And to amp it up a notch there is a cooler on the floor. First i figure out the framing dimensions with a calculator.

But once you step inside it has a great space for sitting resting or even sleeping. The octagon you are framing is an irregular octagon i conveniently choose 24 as the overall width of the square as well as the octagon to make the run of a common rafter 12 bc in the square ef in the octagon to find the run of the hip rafter ab in the square we could use the pathagorean theorem or we could use some simple trig. In this example the octagon segments are 4 ft. It has a raised floor and an interesting roof line that catches your attention at first glance.

Line length is the hyptenuse of the triangle whose. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches.