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

PROPA is the best-performing shims brand in July 2026, moving 4,000 units across 2 ASINs for 31.0% of Top 10 volume. Nelson Wood Shims follows with 3,700 units (28.7%), ahead of Stock Your Home on 1,700 units (13.2%).

With 7 brands splitting the Top 10 and 72.9% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $8.98 to $14.64, 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: B08P55DXZ5 booked 800 units at $8.29, with ▲ 300.0% MoM change. On the growth side, B0GX12XCNL leads positive momentum with ▲ 100.0% MoM growth on 100 units, with B01M1I4409 close behind at ▲ 100.0% MoM on 100 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.