Frame Octagon Roof

Learn rick s method for framing an octagonal turret roof.

Frame octagon roof. For builder rick arnold taking a little more time to understand the framing was all he needed to get started on a successful project. Using the chappell master framing square line 1 under 8 12 6159. An octagonal plan in this example the octagon segments are 4 ft. 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.

Framing an octagonal roof bell shaped rafters call for full scale layout. Framing an octagonal turret roof fine homebuilding there s no denying that an octagonal turret roof is a challenging project. The garden rustic octagon gazebo is one of the most simple and cost effective octagonal gazebos to build. One half of 45 is 22 5.

Long and combine to create a base width of 9 ft. 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. How to draw any polygon with an compass straight edge. Or they could have purchased a chappell master framing square that has the hexagon and octagon roof framing information printed on the square.

6 159 on the tongue and 10 on the body to draw out the plumb and level cuts of the octagon hip rafter. 343 35 kb last summer contractor scott babcock asked me to frame an eight sided bell curve cupola roof as part of a large home he was building. Given a choice i ll take roof framing over any. By jeff davis login or register to download the pdf version of this article.

A total of eight common and eight hip rafters make a roof with a 20 in 12 pitch. The central angle for an octagon roof is 45.