Armstrong's Dominance Is Entrenched
Armstrong held above 60% every month — 61.2% in July, 60.9% in August, 62.1% in September. Its top SKU, a 4-ft x 2-ft Random Textured Contractor White mineral fiber tile at $59.35, leads at 9.8% dollar share. Two more Armstrong SKUs sit in the top five: a 2-ft x 2-ft version at $57.53 (5.1%) and a Single Raised White at $71.43 (4.3%).
Three of the top five SKUs and 62% of the category is shelf control, not just market leadership. Armstrong spans multiple tile sizes within a narrow ASP band, making it difficult for any competitor to find a gap.
USG Is Sliding in a Category It Cannot Afford to Lose
USG holds two of the top five SKUs — a Radar Basic White at $58.25 (9.5%) and a Fifth Avenue White at $56.71 (6.5%), together accounting for 16% of category dollars. But overall share fell from 31.0% to 28.9% between July and September.
In a two-brand category, there is nowhere to hide. When USG loses, Armstrong gains — and at 62% versus 29%, the gap is widening.
A Niche Challenger Is Growing
American Tin Ceilings grew from 6.9% to 8.1% over the quarter, the most notable movement outside the top two. At roughly 8% share it remains a niche player, but the 1.2-point gain is worth watching. The remaining brands — Genesis, Fasade, Ceilume, Great Lakes Tin — collectively hold single-digit share. The category is functionally a duopoly with a small decorative fringe. Datavations tracks every SKU, every store, every sale across 11,936+ locations daily — the precision needed to see a 2-point share shift develop in real time.
Who leads the ceiling tile category at Home Depot and Lowe's?
Armstrong Ceilings leads with 62.1% dollar share as of September 2025, holding three of the top five best-selling SKUs. USG is second at 28.9%. Together they control roughly 91% of the category.
Why is USG losing ceiling tile share?
USG dropped from 31.0% to 28.9% dollar share between July and September 2025. In a two-brand category, USG's losses transfer almost directly to Armstrong, which gained over the same period.
Are any ceiling tile brands growing besides Armstrong?
American Tin Ceilings grew from 6.9% to 8.1% dollar share in Q3 2025, the largest gain outside the top two. It occupies a decorative niche distinct from the contractor-grade mineral fiber tiles that Armstrong and USG compete on.
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