The hydraulic tiles we manufacture are natural, handmade products, with their own personality and which age very well. Each pieceis unique and small variations in tone or small differences in dimensions are characteristic features of the product. Inspired by thegeological process of stratification, Huguet and Luke have experimented with building up coloured layers of the normally unseen tilebase substrate then grinding back parts of the surface to reveal the layers underneath. Five variations of the tiered tiles have beencreated with either a raised layer (traditional white tile surface) or/and a recessed layer (revealed substrate), each revealing varyingamounts of the material below. Based on Unicode ‘Block Elements’, the graduating tiles form a simple modular system that can bereconfigured in any number of ways.