This Instructable is a variation of https://www.instructables.com/id/Emergency-Shelter-II-from-Coroplast/
. In fact, it is the same structure you see in the Shelter II photos cut down to a size that will fit in my car when folded up. Consequently, the comments in Shelter II and https://www.instructables.com/id/Helter-Shelter/
also apply here. The design goals still include one piece fold out construction, mass producability, and inherent rain water shedding without extra tape or sealing. This one is used as a playhouse and has been outside in Galveston, Texas for three months. It is easy to move around for mowing the grass, or storing away for hurricanes.