- Trex Company LLC
 - Manufactures decking material made primarily from recycled plastic grocery bags, shrink-wrap, and waste wood. - Masonite Corporation
- Manufactures siding, doors, trim, and wood composite materials for consumers and the construction industry.
- CorrectDeck
- Manufactures composite decking lumber made from polypropylene and Maine hardwoods.
- Plastic Lumber Yard
- Manufacturers and distributors of a full line of lumber grades and sizes made from recycled plastic.
- Plastic Lumber Company
- Manufactures building products from recycled plastics.
- Cascades Re-Plast Inc.
- Manufactures a range of decking boards and outdoor furniture from post-consumer recycled plastic and industrial raw materials.
- U.S. Plastic Lumber
- Manufactures recycled plastic lumber from post-consumer waste.
- Renew Resources
- Offers recycled plastic lumber and building materials.
- Fiber Composites
- Manufactures Fiberon, a composite decking material with vinyl railings.
- Bedford Industries, Inc.
- Manufacturer of twist-ties, identification tags, and recycled plastic lumber products.
- American Ecoboard, Inc.
- Manufactures maintenance free plastic lumber for decking, seawalls, fencing, and furniture made from 100% recycled plastics.
- Resco Plastics
- Manufactures 100% recycled MAXiTUF plastic lumber.
- American Composite Timbers
- Manufactures alternative wood products reinforced by fibreglass.
- Polywood
- Manufactures structural plastic lumber from post-consumer and post-industrial recycled plastics for uses including railroad crossties, substructures such as joists, beams, and posts, vehicular and pedestrian bridges, boardwalks and walkways, and piers and observation platforms.
- Plastival, Inc.
- Manufacturer of Polyex recycled plastic lumber.
- Tangent Technologies
- Tangent is a leading producer of HDPE plastic lumber from recycled plastics for manufacturers. Material is extruded in custom shapes, strength profiles, colours, and surface textures.
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