Rectangular, solid [PLFR] - jcgomezz/Building_taxonomy GitHub Wiki

The shape of the building plan is approximately rectangular, with only minor variations from a rectangular shape. Two opposite sides are clearly longer than the other two sides.

A building with rectangular plan shape, Vancouver, Canada (left photo: S. Brzev, right: Map data ©2013 Google, Province of British Columbia, DigitalGlobe)