AY Honors/Marketing - Advanced/Requirements

Unsanded grout should be used in joints that are less than 1/8-inch-wide. It has a smooth texture and clings well to vertical surfaces, which makes it useful for grouting ceramic wall tiles. Sanded grout should be used for flooring and wall tile joints wider than 1/8 inch because it resists shrinkage and cracking. It is possible to use sanded grout in thinner joints, but forcing the bulky mixture into these joints is difficult, and pinholes may occur in your finished grout lines. Joints larger than 3/8 inch need heavily-sanded grout mixture, which is typically labeled as a wide-joint mixture and is available at most hardware and flooring stores.