A Do-It-Yourself GeoDome Greenhouse — 5 Comments

  1. Well done! I designed and built two 18′ diameter domes. Made of 2x3s in 1973 in Durango, CO, not for greenhouse but as bedroom domes. Cut off a bunch of 12″ diam and less trees at the 4′ level as a ready-grown pylon base, then built a large hexagonal floor using those pylons with 2×12 spokes and 2×8 braces, then covered it all with plywood.
    Prefabbed the struts just as you did using the formula from Domebook II. Used PVC 5″ diam pipe for the hubs, lag bolted into each strut (precut, predrilled using home made jigs) from the inside, color coded each strut, was a snap to erect, both bare frames on the platforms in one day flat with 8 people helping us.
    Then skinned with plywood, covered that with shingles, and slept in it at night.
    The door was through a hatch in the floor, up a short staircase. Close the hatch inside. Worked a treat, very lovely space to live in.
    Still leaked, though we’d calked it. Domes do have leak problems, though new tech seems to have solved a lot of that.
    I want to build another one for a greenhouse as you’ve done. I live in upstate New York and need to insulate it with the textured plastic panels the folks use for the Greenhouse Domes, you can find them online, they do a nice job.
    Congrats, you did a super job.

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