Redland Cambrian Slate Roof Tile Langdale Green This tile is made in Wales, roof slate tile looks great. Size - 300 x 336 mm Coverage 15.9 slates/m-square at 210 mm gauge 14.8 slates/m-square at 225 mm gauge 13.3 slates/m-square at 250 mm gauge 3-5 DAYS DELIVERY