The compact and spacious Darwin 6x4 is very easy to assemble. It features 16 mm thick double-walled panels for increased stability and rigidity. The structure is lockable for added security. Double doors make it easy to bring items in and out. The ceiling is high enough for an adult to move around comfortably. It includes ventilation to prevent odors, as well as a window for natural light. The floor panel protects against mud and rainwater.