Berry Alloc Wall & Water Shower Panel Cement

The interlocking system joins the panels without grout, so the wall is wiped down rather than scrubbed, and the plywood core gives a 10.2 mm panel the stiffness to stand flat from tray to ceiling. The high-pressure laminate is the kind of surface used on kitchen worktops, and it takes daily water without a sealer. The manufacturer's warranty is listed as lifetime.

It suits a bathroom with white sanitaryware and a grey floor: the BML Concrete Grey rigid vinyl tile, or the Wabi Sabbia porcelain for warmth. Berry Alloc Wall & Water Concrete is the darker, textured version; White Brooklyn Concrete the pale textured one; Black Velvet the dark contrast.