Porcelanosa Boulder Grey 30.5×30.5×0.6cm

Yes, the Boulder Grey is a glass mosaic wall tile and is well suited to bathroom walls, including wet room areas, when installed using a suitable waterproof adhesive and grout. Glass tiles are naturally non-porous, which means they resist moisture absorption and are hygienic in wet environments. Please note this tile is listed for wall use, so it should not be used underfoot.

Each sheet of the Porcelanosa Boulder Grey measures 30.5×30.5cm, and you will need approximately 10.78 sheets per square metre. To calculate your requirements, measure the width and height of your feature wall in metres, multiply them together for the total area, and multiply by 10.78 to get the number of sheets needed. As with all mosaic tiles, we recommend ordering at least 10% extra to allow for cuts around edges, sockets, and any awkward corners.

The soft grey palette of the Porcelanosa Boulder Grey makes it an incredibly versatile choice for kitchen walls and splashbacks. Its neutral stone-inspired tones complement both bold cabinetry colours and white or cream kitchens, and the glossy glass finish reflects light beautifully to keep the space feeling bright and open. The mosaic format also adds subtle texture and visual interest without overwhelming a kitchen’s overall design scheme.