"The London Mastaba" was a temporary floating installation exhibited from June to September 2018 on The Serpentine in London. The installation consisted of 7,506 oil barrels, in the shape of a mastaba, a form of an early bench in use in ancient Mesopotamia, with a flat roof and inward sloping sides. It sat on a floating platform of high-density polyethene, held in place by 32 anchors. It was in height and weighed . The vertical ends were painted in a mosaic of red, blue and mauve, whilst the sloping sides were in red with bands of white.