Achim Home Furnishings FTVMA45020 Nexus Self Adhesive 20 Vinyl Floor Tiles, 12" x 12", Carrera Marble Easy Do-it-Yourself Installation - Just Peel 'N' Stick. Stunning High Gloss, No Wax Finish. 12 inch x 12 inch Tile - 1.2mm Thick . 20 square feet per box (20 tiles per box). 5 Year Limited Warranty. Easy Do-it-Yourself Installation - Just Peel 'N' Stick. No Wax Finish. 12 inch x 12 inch Tile - 1.2mm Thick. 20 square feet per box (20 tiles per box).