it is recommended that a 3/8" grout joint be used for clé exclusive modern farmhouse brick tile. smaller grout spacing can be used including “a tight joint”; however, additional tiles will be required to cover a given area. narrow grout spaces accentuate tile irregularities. clé's glazed tile grout is perfect for the job. note: epoxy grout is not recommended however, should you choose to use epoxy grout, grout release is required to maintain the original surface. use a grout bag to minimize excess grout and decrease cleanup. work clean!