1 sheet of tiles is approx 30cm x 30cm. Each individual tile piece is 15mm x 15mm. 11 sheets = 1 square metre which is the unit of measure for this listing.Bathroom Wall Tiles Mesh Backing Shower Basin Bath Toilet Splashback Feature Wall Walls. DIY Home Decorating Decoration Interior Design Designing Designer Project Renovation Renovating Building Ideal Home. The item "1 SQ M Black Mix Glass Mosaic Wall Tiles Lustrous Bathroom Shower 0098" is in sale since Monday, March 07, 2016. This item is in the category "Home, Furniture & DIY\DIY Materials\Flooring & Tiles\Floor & Wall Tiles". The seller is "gt-rhein" and is located in Aberdare. This item can be shipped worldwide.