The Maxwell is Cabin Fever's and most popular and original model. Featuring exposed curved roof beams, the Maxwell design offers a unique look and feel. Recent updates include and updated look with additional windows.

The Morris model is indentical the the Maxwell but substitues a flat slopped roof for curved roof to save money. Both models (MM) offer a variety of sizes, from 12' x 16' (192 sq ft) to 16' x 50' (800 sq ft) and configurations, including kitchen and bathroom packages.