the floor is established and leveled next starting at a corner the walls are erected around the floor finally the roof is created a same hand operated tool is used for each task application_number US 4375908 A description referring initially to fig1 a relocatable habitat unit rhu in accordance with the present invention is shown and is generally designated 10 as shown the rhu 10 includes a plurality of individual panels of which the generic panel 12 sometimes hereinafter referred to as a wall panel is exemplary the panel 12 is substantially flat and is rectangular in shape with a width u201c w u201d of approximately four feet and a length u201c l u201d of approximately eight feet i e the panel 12 is a 4 u00d7 8 alternatively a panel 12 may be dimensioned as a 4 u00d7 4 the depth of the panel 12 can vary slightly but in general will only be two or three inches preferably the panel 12 is made of a light weight composite polymer foam type material for the present invention there are essentially three different types of panels 12 these are generally denominated by their structural function in the rhu 10 and are a wall panel 12 a ceiling panel 14 and a floor panel 16 further the wall panels 12.