VOCTAGRAM ~ DOME V
The octagram is projected to the sphere surface. Triangles are halved with –X1 struts and FI struts are added to support roofing materials. More FI struts can be added as required. As illustrated this 2 x 6 dome is 30 ft. across Base Perimeter edges, with apex height of 9 ft. Main Dome Struts are made from 10 and 12 ft lumber; Base Perimeter edges are 12 ft. This is a short dome but height can be increased to make steeper sides and more interior volume, or decreased for a shorter profile.