what size trowel for 12x24 floor tile over concrete

12 x 12 x 12 12 x 12 x 12 mm For tiles 18 x 18 46 x 46 cm up to 12 x 36 30 x 91 cm 34 x 916 x 38 19 x 14 x 10 mm For tiles 24 x 2…