Hi, I am planning to build a "Stargate Like Structure", for my desert home near Joshua Tree that sits on 10 acres. Hope to use maker-pipe for the underlying structure.
Height/Width 12.5 feet by 12.5 feet Ring OD. With 4 circular 3/4 EMT pipes creating the backbone. Planning on building 9 sections 40 degrees each, which somehow bolt together. Three sides will be light-weight concrete imprinted with designs and the front will be Polycarbonate for lighting.

Would also include misting or water feature of some kind.

Home to be setup for Airbnb guests as well as fun for family.

Any thoughts and suggestions are welcome.