Dr Mike Page has created the QB2 'cube house', which measures 3m (10ft) tall and 4m (13.1ft) wide which can sleep up to two people. The house is as easy to build as "an Ikea Billy bookcase" and takes just FOUR hours to erect. Despite the cube's compact dimensions it crams in a lounge, spiral staircase, kitchen, full size bathroom and bedroom which are spread over three floors.