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Innovative Products for a Sustainable Future Composite Panel Association CPA represents the North American composite panel and decorative surfacing industries. Product Finder Let us help you find a manufacturer that is perfect for your unique needs and applications. var productfinderpageurl productfinder CPADesign Portfolio CPADesign Portfolio In partnership with Woodworking Network CPA publishes an annual guide that provides the most comprehensive product information available about North American composite panel and decorative surfacing products. Products Medium Density Fiberboard MDF Particleboard Hardboard Engineered Wood Siding Trim Decorative Surfaces Medium Density Fiberboard MDF Particleboard Hardboard Engineered Wood Siding Engineered Wood Trim Decorative Surfaces 2025 Spring Meeting Laguna Cliffs Marriott ResortDana Point CaliforniaApril 1316 2025 ECCSustainability Our commitment to environmental stewardship applies to indoor environments as well as to the great outdoors.