Frame Octagon Roof

Learn rick s method for framing an octagonal turret roof.

Frame octagon roof.

Or they could have purchased a chappell master framing square that has the hexagon and octagon roof framing information printed on the square. 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. For low pitch roofs building codes may require larger dimension rafters. 6 159 on the tongue and 10 on the body to draw out the plumb and level cuts of the octagon hip rafter.

Framing an octagonal turret roof fine homebuilding there s no denying that an octagonal turret roof is a challenging project. Using the chappell master framing square line 1 under 8 12 6159. Long and combine to create a base width of 9 ft. The central angle for an octagon roof is 45.

Due to the turret s location only half of the rafters are extended into tails that form the soffit. For builder rick arnold taking a little more time to understand the framing was all he needed to get started on a successful project. For instance if your roof has a steep pitch you may be able to use 2 inch by 4 inch rafters but if your roof has a low pitch building code may require that you used 2 inch by 6 inch or 2 inch by 8. One half of 45 is 22 5.

As roof pitch is lowered the weight burden on the rafters increases. 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. 10ft bayside gazebo by outdoor living today assembly sequence.

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