GRP doors, also known as glass-reinforced plastic doors, are a type of composite door made from a combination of reinforced fiberglass and plastic resin. The resulting material is lightweight, durable, and highly resistant to corrosion, making it a popular choice for outdoor and industrial applications. GRP doors are also known for their excellent insulation properties, making them ideal for use in cold rooms and other environments that require temperature control. They come in a variety of styles and designs, and can be customized to meet specific requirements in terms of size, color, and hardware options. Overall, GRP doors offer a cost-effective, low-maintenance solution for a wide range of commercial and residential applications.