Hexagon Roof Framing

Some galvanised floor joist hangers came in really handy for attaching the roof to the main body.

Hexagon roof framing.

So i decided to draw out a similar hexagon plan. Then i cut all the parts and assemble the roof on the deck next to its intended location. The central angle for an octagon roof is 45. Edited 6 5 2006 9 54 am et by joebartok.

The unit run for the hip rafters is 13 7 8. 10ft bayside gazebo by outdoor living today assembly sequence. In this example the octagon segments are 4 ft. This is how i ve worked out the formulae.

First i figure out the framing dimensions with a calculator. Long and combine to create a base width of 9 ft. If i did this again i would build the roof frame on the ground and lift it into place once all secured together. We have found the value of a which defines a point on the underside of the triangular panel directly under the roof s apex we know that when 2 planks meet at some angle the bevel will be the same right along the edge.

Mark and cut an end as shown in diag. One half of 45 is 22 5. Saw off 10 mm from a side so that it now measures 90mm x 80 mm. Chop the 90 90 mm wooden block to a length of 550 mm.

It was difficult to hold all the roof beams in place until i had located them accurately. Enter pitch pitch and the plan angle at the eaves 120 for your hexagon and the common rafter span 2 common run in this framing angle calculator. 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. The structures i have solved to date had backed hips meeting at the center.