Trex is a brand of composite decking made from a combination of wood fibers and recycled plastic. It is known for its durability, low maintenance, and resistance to rotting, warping, and splintering. Trex decking comes in a variety of colors and styles, making it a popular choice for outdoor living spaces. Additionally, Trex is environmentally friendly as it is made from recycled materials and does not require staining or sealing like traditional wood decking. Overall, Trex is a high-quality and long-lasting decking option for homeowners looking to enhance their outdoor living areas.