ARDEX WA Grout Coverage Calculator Lt (tile length)mmWt (tile width)mmDj (joint depth)mmWj (joint width)mmSelect type of grout from the drop down menuARDEX WAType of groutGrout/ m2 (no wastage allowed)kg/m2Grout/ m2 (with 15% wastage)kg/m2Size of area to be groutedm2Grout required (with 15% wastage)kg Δ