The Face Zenith Icosa-Dome has 12 hubs and 27 struts.

Top View:


A special hexagon area is added  to close in the bottom. A pyramidal Cupola could be added to this dome for a vertical extension with 3 faced pyramid on top in place of the horizontal triangle face.
Pictorial  View:
With standard 92-5/8" boards used for struts, the dome height is approximately 7 ft, 2-1/2" and has a floor area of 135 square feet. Span across base points is almost 14'-6" and base perimeter is 43 ft.

The Edge Zenith Icosa-Dome has 10 hubs and 20 struts. Two types are presented.

Type 1
Height is almost the radius of the dome. All base hubs rest flat on the ground.
With standard 92-5/8" boards used for struts, the dome height is approximately 6 ft, 3" and has a floor area of 126 square feet. Widest span across base points is  14'-8" and base perimeter measures 42 feet.


Type  2
2 base hubs point upward. The ground level struts are connected together as shown with metal connector plates (Simpson Strong Tie brand) instead of the round hubs. 4 round hubs could also be used (best). Adds significant height, relative to the dome diameter.


'X1' struts can be added to these domes, to divide the large triangles of these domes as an aid in covering and adding structural strength.
Icosa-Dome X1


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