From Ice Age Farmer Wiki
The geodesic dome makes for a strong structure -- one which lends itself well to a greenhouse:
There are different methods to derive the structure for any arbitrary size using repeatable, standardized components:
- Geodesic Dome Calculator -- can create plans for V1, V2, V3 etc. domes of arbitrary sizes.
- Domes can also be constructed from Earth Bag Construction. See this tool: Earth Bag Dome Calculator.