Grout Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Zep is the best-performing grout brand in July 2026, moving 20,000 units across 2 ASINs for 29.9% of Top 10 volume. Goopreen follows with 10,000 units (14.9%), ahead of Clean-eez Cleaning Products on 9,000 units (13.4%).

Volume is spread across 8 brands, with the top three holding 58.2% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $9.41 to $31.95, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B0721NFGC4 booked 4K units at $41.95, with ▲ 100.0% MoM change. On the growth side, B004BNCPY6 leads positive momentum with ▲ 700.0% MoM growth on 400 units, with B00176ISGE close behind at ▲ 500.0% MoM on 300 units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.