If you are considering building domes like these (do it! do it!), please go to the links page which points you to the sites you really should read first. Then come back here and read my site afterwards. The information here is only intended to supplement what's already out there, is not available without a prescription, is only at participating locations, and is void in Minnesota and West Virginia.
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8.5 foot radius frequency two dome
16 foot radius frequency four dome
About screw anchors
Modifying dome geometry for a larger entrance
Very useful links