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National Wood, Window and Door Association

The Window & Door Manufacturers Association is a trade association representing the leading producers of sash, frames, window units, skylights, flush doors, stile and rail doors and sliding patio door units for the domestic and export markets. Members sell to distributors, dealers, builders, remodelers, architects, contractors and other specifiers in residential, commercial and institutional markets. WDMA members manufacture high performance products designed and built to performance-based standards.