+-------------------------------------------------+
| COLLAPSIBLE CUBE NOOK |
| |
| +-----------------------------+ |
| / /| |
| +-----------------------------+ | |
| | [ CIRCULAR DOOR FLAP ] | | |
| | /\ | | |
| | / \ (DIAGONAL SCORE) | + |
| | / \ |/ |
| +-----------------------------+ |
| |
+-------------------------------------------------+
How to Build
- Score diagonal X lines into two opposite side panels of a square corrugated box.
- Cut a round entryway on the front face and attach a clear vinyl door flap to block wind.
- Push inward on the scored X sides to collapse the entire cube flat for compact storage.
4. Accordion-Fold Geodesic Tunnel Shelter
An extended tunnel-style shelter made from interlocking folded cardboard segments. Great for multi-cat feral colonies needing separate compartments.
How to Build
