This doesn't look to difficult to build...love the idea of divided sections for easy access to different size logs. I would make it bigger & have it outside on my covered lanai though ...don't want possible bugs in the house.
Wriggly Tin Shepherd's Huts. The double doors really let the outside in and make the hut feel incredibly spacious. The hut is fully equipped for up to five people. http://tinyhouseblog.com/vardo/wriggly-tin-shepherds-huts/