Exterior, Concrete Siding Material, Glass Siding Material, House Building Type, and Cabin Building Type Cabin Knapphullet is small cabin inspired by its location nestled between large rocks and low vegetation of the Sandefjord coast in Norway. It is only 323 square feet, but contains an open living space with a bathroom and a mezzanine bed that sleeps two people. Although the building occupies a small footprint, the space expands vertically over four levels including a roof terrace.  Photo 9 of 10 in A Look at 10 Minimalist Scandinavian Cabins