Hexagon Roof Framing

First i figure out the framing dimensions with a calculator.

Hexagon roof framing.

I positioned the cross members to coincide with the plywood roofing pieces. 10ft bayside gazebo by outdoor living today assembly sequence. Mark and cut an end as shown in diag. This is how i ve worked out the formulae.

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. Then i cut all the parts and assemble the roof on the deck next to its intended location. 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. One half of 45 is 22 5.

So i decided to draw out a similar hexagon plan. Chop the 90 90 mm wooden block to a length of 550 mm. Long and combine to create a base width of 9 ft. Edited 6 5 2006 9 54 am et by joebartok.

Some galvanised floor joist hangers came in really handy for attaching the roof to the main body. If i did this again i would build the roof frame on the ground and lift it into place once all secured together. In this example the octagon segments are 4 ft. Hexagon and octagon roof framing geometry tait chappell told me about the advance timber framing class at fox maple they put on last week where the students built a hexagon 13 5 12 common pitch with two dormers at 22 12 valleys joining into rotated purlin headers.

The structures i have solved to date had backed hips meeting at the center. Saw off 10 mm from a side so that it now measures 90mm x 80 mm. The unit run for the hip rafters is 13 7 8. It was difficult to hold all the roof beams in place until i had located them accurately.