10 Best Under Grill Mat For Composite Deck 2025 in the United States

The UBeesize Thickened Under Grill Mat is a robust option for those using grills or fire pits on composite decks. Its substantial size of 60x36 inches provides ample coverage for protecting surfaces from potential damage caused by heat or embers. Made from fiberglass with a double-sided thickened silicone coating, this mat offers impressive heat resistance, up to 2000 degrees Fahrenheit. This feature makes it highly effective for preventing heat-related damage to decks and patios, which is essential for maintaining the integrity of composite materials.

The product is designed for ease of use, with a non-slip backing that ensures it stays in place during use. Its waterproof nature facilitates cleaning; simply rinse with water or wipe with a damp cloth, making post-barbecue clean-up straightforward. Additionally, the mat's ability to be folded for storage adds to its convenience, especially when space is limited.

One of the mat's strengths is its durability, a result of its advanced materials and construction. However, while the fiberglass and silicone coating provide high heat resistance and longevity, the mat's effectiveness in extremely windy conditions might be less than ideal due to its lightweight nature (1.9 pounds). Users should consider securing it during such weather to prevent displacement. In terms of weather resistance, the mat performs well, but prolonged exposure to harsh elements might eventually affect its longevity, so occasional checks and maintenance could be beneficial.

The UBeesize Large 65 x 48 inches Under Grill Mat is designed to protect composite decks and patios from damage caused by outdoor grilling. Made from fiberglass with a double-sided silicone coating, this mat offers impressive heat resistance up to 2000 degrees Fahrenheit. It is also fireproof, waterproof, and resistant to oil, ensuring that it can handle the messy aftermath of a barbecue.

The product’s large size provides ample coverage, making it suitable for various outdoor areas including gardens and patios. Its non-slip backing ensures it stays in place during use. Additionally, the mat’s waterproof nature makes it easy to clean with just soap and water or a garden hose, and it can be folded for convenient storage. It comes with a storage bag, adding to its practicality.

The mat is highly durable and has undergone extensive quality checks, but at a weight of 2.27 pounds, it is lightweight and could be susceptible to strong winds if not secured properly. This under grill mat is a solid choice for those looking to safeguard their decks and patios while enjoying outdoor cooking.

The GrillTex 8GD-075-36C-5.3 Deck and Patio Protective Grill Mat is designed to offer solid protection for decks, patios, or garage floors, specifically composite decks, from grease, oil, and sauce spills. With dimensions of 36 inches by 63 inches, it provides ample coverage, and its unique drip zone front extension offers extra protection where splatters are most likely to occur. Made from PVC, the mat is lightweight at 7.31 pounds, which makes it relatively easy to move and position under various grilling equipment like bbqs, gas grills, and smokers.

Its gray color and diamond plate style offer a sleek appearance suitable for outdoor settings. One of its key strengths is ease of cleaning; users can simply wipe it down with a paper towel and household cleaner or use a garden hose for larger spills. Additionally, the mat is designed not to stain wood or paver stones, making it a good fit for composite decks.

The mat is weather resistant and comes with a 1-year warranty, which covers manufacturing defects, providing some peace of mind.