Thanks for the email back. So if you made the 31 inch double bubble with the extended 5 feet would it be 21 feet tall inside? How much would this cost. Do you have a picture of it?
Here’s a photo 31 foot diameter dome with a short user made extension. Ignoring the extension you can notice 2 ring pole assemblages that circle the dome about 5 feet each above the base of the dome. To make a double bubble what we do is take this approximately 10 foot section of one dome flip it and clip it in to the bottom of another 31 dome. The dome at its widest is approximately 31 feet, where it touches the ground it is approximately 26 feet. The dome is approximately 26 tall. We can make dome with 0 to 8 doors. Price $5090 This dome is a special order and is nonreturnable.
Please give me a call talk about any questions you have. My number is 650-323-6202.