DAP controls 49.0% of the caulk category at Home Depot and Lowe's as of January 2025 and holds four of the top five best-selling SKUs. All four are 10.1 oz. tubes priced between $3.83 and $6.09 — a value-tier lineup that covers interior paint prep, exterior trim sealing, and general-purpose caulking. The only non-DAP product in the top five is GE's Advanced Silicone 2 at $10.80, more than double the price of DAP's leader.
DAP's Value Strategy Locks Out the Competition
DAP's top four SKUs span a tight range: Alex Fast Dry at $4.90 (6.0% dollar share), Alex Plus at $3.83 (2.6%), Dynaflex 230 at $6.09 (2.4%), and another Alex Fast Dry variant at $4.79 (2.4%). Each targets a slightly different job — fast-dry interior, silicone-enhanced flex, elastomeric exterior seal — but all sit at price points a homeowner grabs without deliberation. DAP wins by being the default tube in the cart across every project type.
GE Is the Premium Alternative but Cannot Close the Gap
GE holds roughly 30% share — 29.8% in November, rising to 30.5% in January. Its top SKU, an Advanced Silicone 2 at $10.80, is the highest-priced product in the top five and the only non-DAP entry.
At 30.5% versus DAP's 49.0%, the gap is nearly 19 points — and it widened slightly as DAP moved from 48.1% to 49.0% over the same period.
The Category Is a Stable Duopoly
DAP and GE together hold roughly 79% of the category. The remaining 21% fragments across at least nine brands — OSI, Sashco, Mapei, Behr, Loctite, 3M, White Lightning, Flex Seal, Johns Manville — none above mid-single digits. White Lightning slipped from 6.7% to 5.3%, the most notable movement among smaller players.
Nothing moved dramatically — DAP gained less than a point, GE gained less than a point. The shelf is locked. Breaking in requires either a retailer-driven assortment reset or product innovation that creates a new sub-segment. Datavations tracks every SKU, every store, every sale across 11,936+ locations daily, revealing whether a locked category is truly stable or quietly shifting beneath the surface.
Who leads the caulk category at Home Depot and Lowe's?
DAP leads with 49.0% dollar share as of January 2025, holding four of the top five best-selling SKUs. GE is second at 30.5%. Together they control roughly 79% of the category.
What is the best-selling caulk at Home Depot and Lowe's?
DAP Alex Fast Dry 10.1 oz. White Acrylic Latex Plus Silicone Caulk leads at 6.0% dollar share with an ASP of $4.90, outselling GE's second-ranked Advanced Silicone 2 at $10.80 by more than double.
How competitive is the caulk category?
The category is a stable duopoly. DAP (49.0%) and GE (30.5%) hold nearly 80% of dollar share, and neither moved more than a point in Q4 2024.
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