Checkout this tiny house Ross built in Dayton, Ohio. It only has a 72 square feet footprint but has everything you'd expect in a tiny house designed for full-time living. I personally like this concept for someone that needs to move their tiny house regularly. It's for sale so see the link below! Here's a quick tidbit about it.
“This model features overlapped beveled cedar siding and trim with corrugated galvanized steel on the exterior. Also has a total of 3 insulated vinyl windows with a 32 inch exterior door. The roof is a Pro-rib 50 year metal panel system. This model is completely insulated with R-13 fiberglass insulation. The wall and flooring were built with 2 x 3's and the roof with 2 x 4's. Wall sheathing 3/8” plywood, sub floor ¾” plywood. Most everything has been secured with glue and screws. Also for durability while in travel there are a total of 12 – ½” carriage bolts & 10 Lag screws to the frame.”
For sale here: https://tinyhouselistings.com/listing/dayton-ohio-12-brand-new-custom-built-7-x-12-tiny-house-15900-00/
Tiny houses listed for sale and rent daily: http://tinyhouselistings.com