Bianco Dolomiti, Bardiglio Light, Black Honed Penny Round Marble Mosaics 11 1/4x11 3/4

This penny round mosaic puts three marbles on a single sheet: white Bianco Dolomiti, grey Bardiglio Light and black. All three are honed, so the pattern reads by colour rather than by shine. The mix stays uniform from sheet to sheet, which is unusual for natural stone and makes a large floor straightforward to plan. Sheets are mesh mounted at 11 1/4x11 3/4 inches and sold by the box, six sheets to a box. It is rated for shower floors and walls as well as interior floors, which is where a small round format earns its place.

Small pieces on a flexible mesh follow the fall of a shower pan, which is the reason penny rounds keep turning up in wet rooms.