Question: how many square feet per bag of grout?
Answer: As a guide, a single 3kg bag will cover approximately 5m2 with a small tile measuring 7.5x15cm with a 2mm spacer. When using large format tiles like a 60x60cm tile with a 2mm spacer the same 3kg will cover 15m2 approximately. 1. Add the length of the tile and the width of the tile together.