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National Gypsum price increases

5 price-increase letters from National Gypsum (Drywall & Interiors). Most recent effective date: Oct 5, 2026. Sourced from public distributor postings; links go to the original letter.

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EffectiveBrandTradeProductsIncreaseSource
Oct 5, 2026 National Gypsum Drywall & Interiors ProForm Interior Products see letter letter · Negwer Materials
letter · ABC Supply Interiors
letter · Kamco Supply (New York)
Jun 1, 2026 National Gypsum Drywall & Interiors Gypsum Wallboard Products see letter letter · Negwer Materials
letter · ABC Supply Interiors
Mar 2, 2026 National Gypsum Drywall & Interiors see letter letter · Negwer Materials
Jan 19, 2026 National Gypsum Drywall & Interiors Drywall & Wallboard see letter letter · ABC Supply Interiors
Jan 6, 2025 National Gypsum Drywall & Interiors Drywall & Wallboard see letter letter · ABC Supply Interiors
Universal Supply