Octagon Roof Framing Detail

The hip rafter angle is not the same as a 90 plan angle.

Octagon roof framing detail.

8 10 roof rafters are 2 x 4. Or they could have purchased a chappell master framing square that has the hexagon and octagon roof framing information printed on the square. And to amp it up a notch there is a cooler on the floor. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches.

It has a raised floor and an interesting roof line that catches your attention at first glance. 6 159 on the tongue and 10 on the body to draw out the plumb and level cuts of the octagon hip rafter. Using the chappell master framing square line 1 under 8 12 6159. The central angle for an octagon roof is 45.

The octagon plan angle is 67 50. But once you step inside it has a great space for sitting resting or even sleeping. What more could your heart desire in a gazebo. This gazebo looks like a scene out of paradise.

Long and combine to create a base width of 9 ft. One half of 45 is 22 5. Figure 2 2 roof framing terms. The hip rafter pitch is the common rafter pitch over 13 in like 8in 13in for an 8in 12in roof pitch.

How to draw any polygon with an compass straight edge. In this example the octagon segments are 4 ft. 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. The drawing shows standard details for an octagon wooden gazebo.

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. Oval octagon rectangular and square gazebos number of pieces and framing of floors and roofs larger and smaller gazebos i e. 18 use 2 x 6 etc. Line length is the hyptenuse of the triangle whose.

There are many differences between the gazebo shown and others many features will change between. First i figure out the framing dimensions with a calculator.