Porcelanosa Boulder Black 30.5×30.5×0.6cm

The Boulder Black is a glass mosaic tile, which makes it naturally non-porous and highly resistant to moisture, so it performs very well in bathrooms. It is listed as suitable for wall use, making it an excellent choice for shower walls, bath surrounds, and splashbacks. As it is not rated for floor use, we would recommend pairing it with a suitable floor tile for wet room or bathroom floor applications.

Each 30.5×30.5cm sheet is sold individually, with approximately 10.78 tiles (sheets) covering one square metre. To calculate how many sheets you need, measure your wall area in square metres and multiply by 10.78, then add around 10% extra to account for cuts and wastage. Because the tiles are sold per sheet rather than per box, you can order closer to the exact quantity you need.

The deep black tone and gloss finish of the Boulder Black give it a bold, dramatic quality that works particularly well in contemporary and industrial-style kitchens. As a kitchen splashback tile, it pairs beautifully with metallic tap fittings, light-coloured cabinetry, or contrasting white grout to make the mosaic pattern stand out. The gloss surface also reflects light, helping to keep a kitchen feeling bright even when using such a rich, dark colour.