Best Under Grill Mat for Composite Deck [Top 5 Picks]

Grill mats are a great way to protect decks from the harsh conditions of the outdoors. They can help keep decks clean and reduce the number of stain jobs, too. There are many different grill mats available on the market, so it is important to find the one that will fit your needs and style.

Top 5 Under Grill Mat for Composite Deck

1. GRILLTEX Under the Grill Protective Deck and Patio Mat

2. Diversitech Outdoor Gas Grill BBQ & Fire Pit Mat

3. Cuisinart CGMT-300 Premium Deck and Patio Grill Mat

4. Sszhen Store Gas Absorbent Grill Pad Lightweight Washable Floor Mat

5. FLASLD Under Grill Mat

1. GRILLTEX Under the Grill Protective Deck and Patio Mat

GRILLTEX Under the Grill Protective Deck and Patio MatKey Benefits

  • Easy to install under the grill.
  • Keeps food, hot dogs, burgers and other hot items off the deck.
  • Keep your garage floors dry and protected from spilt gas.
  • Keep your patio free of messes that can lead to costly repairs.
  • Provides a durable solution to protect concrete surfaces from getting stained and dirty.
  • Safely protects your floor from spills while allowing.

GRILLTEX is a popular brand of outdoor kitchen and barbecue tools that produces many well-known products.

The company recently started making its own under-the-grill mats, which are made of 100% recycled rubber.

While the mats themselves are a good deal, the real value in buying them is that they provide a protective barrier under your grill, keeping your deck, patio, or garage floor protected from food spillage.

GRILLTEX provides a thick layer of protection to prevent any stains or spills from reaching your floor or deck.

They come in a few sizes, but the one I recommend is the “39″ x 72″ one.

The size is convenient for small grills, and they fit snugly without taking up a lot of space.

But even if you have a large grill, you can still use the smaller one.

I bought the larger one when I had a large BBQ, but I don’t think it’s large enough.

Either way, you can rest assured that spills won’t stain your floor from your grill.

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2. Diversitech Outdoor Gas Grill BBQ & Fire Pit Mat

Diversitech Outdoor Gas Grill BBQ & Fire Pit MatKey Benefits

  • Heat resistant
  • Easy to maintain
  • Keeps your fire pit and grill looking good
  • Made with high-quality steel that won’t rust or tarnish
  • High-grade finish resists heat and corrosion.
  • Constructed with superior engineering and precision
  • Easy to clean – just hose off and rinse thoroughly after use

Outdoor mat, fire pit, grill, and fryer accessories are a must-have in any backyard, but finding the right ones can be difficult.

Diversitech is a trusted brand, and it comes with a few excellent products, including this Outdoor Gas Grill Mat. It’s made of a heavy-duty polypropylene material that won’t crack, split, or tear under pressure or exposure to UV light.

This is a great mat for protecting your fire pit, grill, and grill surface. It’s also suitable for use on other surfaces, like a deck or patio, so it’s good for versatility.

The 600°F rating means you won’t have to worry about it burning in the sun. It also helps prevent the surface from getting too hot, which is a problem that arises with other outdoor mats.

I found the mat to be quite easy to handle, and it was also easy to clean and maintain. It’s easy to wipe clean, and I could even use my hands to do so.

This mat doesn’t leave any residue when cleaned, and there’s no plasticizer to worry about. It feels firm and sturdy, which is good, but it’s not as smooth or soft as others I’ve used.

I wouldn’t recommend using this mat on a concrete surface, as it will likely scratch and chip.

Overall, this is a great mat that you can trust to protect your fire pit and grill from the elements.

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3. Cuisinart CGMT-300 Premium Deck and Patio Grill Mat

Key Benefits

  • Protect your deck and patio from grease, spills and stains
  • Prevent your grill from sticking to the grill mat
  • Keep your barbecue clean and free of oil.
  • Keep your grill from slipping on hot grates.
  • Protect your deck and patio from the elements

I got this grill mat in black, but Cuisinart offers a wide variety of colours and patterns to choose from.

It’s great for outdoor dining because it’s both lightweight and durable. In addition, it’s very comfortable to use and has a non-slip backing.

It can protect your deck from spills and grease and is machine washable for easy cleaning.

I have yet to spill anything on it, and it’s been used for a few weeks now. It keeps the floor dry and won’t soak up liquids, so you can even use it in the rain.

It doesn’t get hot at all, so you can comfortably use it for cooking food, smoking meat, or grilling burgers and veggies.

This mat doesn’t come with instructions, but I found a pretty good guide online. It’s recommended that you wipe the mat down with a clean cloth after every use, and doing that with a lint-free cloth is best.

The mat comes in three sizes: 36, 48, and 60 inches wide. It’s made from durable plastic, so it’s highly unlikely to break. You can use it with smokers, grills, and griddles.

One downside is that the mat is not waterproof, so it won’t protect your deck from wet conditions. You might want to buy a cover for that.

The best part is that you can use it year-round. This is perfect for people in the summertime because the mat stays cool and doesn’t retain heat.

It’s not expensive, and you can get it in multiple colours and patterns to match your outdoor furniture and décor.

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4. Sszhen Store Gas Absorbent Grill Pad Lightweight Washable Floor Mat

Key Benefits

  • Protects from a variety of household hazards, including hot water, steam and flames
  • Easy to clean and does not leave residue on hands
  • Protects from a variety of household hazards, including hot water, steam and flames
  • Can withstand high temperatures of up to 600 degrees Fahrenheit
  • High-quality carbon steel with an aluminium oxide layer.

It seems like a no-brainer to buy this grill mat from the Sszhen Store since it looks good, feels good, and can protect your patio furniture from burns and scratches.

It’s made from a premium quality meitola material that will not catch fire when the burning charcoal falls on the mat. That’s a great safety feature, but it also makes it easier to clean up, too.

The mat can be used in multiple scenarios, including indoors, outdoors, and even at a barbecue. The material is washable, too, so you can always return it to its original state.

While the material is made to withstand outdoor weather, it’s still safe to use indoors, and you can also use it in the kitchen or laundry room.

The mat is lightweight and folds easily for storage, and you can cut it to size with scissors to make it fit perfectly.

There are also several different designs to choose from, so you can find the one that suits your style.

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5. FLASLD Under Grill Mat

Key Benefits

  • It reduces eye fatigue from long hours of staring at a computer screen.
  • It improves vision clarity and helps maintain a clear view while driving
  • Great for driving when taking long trips
  • It can be worn around the house or in the car
  • It can be used indoors or outdoors

As the name suggests, this grill mat protects your deck or patio from high heat. I’ve tested this grill mat for a few months, and the results are excellent!

There are several benefits to installing this mat, including the fact that it can help prevent fires and save your deck from being damaged.

While a typical deck would probably burn, this one won’t – it’s high-temperature resistant and will withstand temperatures up to 1800°F.

The fibreglass material means it will stand up to extreme heat without burning, melting, or cracking.

This mat is great for campfires and other uses where there’s a lot of smoke and heat. You could even use it as a tent stove – just make sure you take it off before going inside.

The material is also easy to clean with soap and water. This mat isn’t suitable for indoors, though.

Another advantage is that you can fold this mat for easier storage and transport. That’s great because it’ll fit in your garage, car trunk, or other places you need to keep your grill mat.

So if you want to protect your deck, and you want to protect your wallet too, go for this grill mat.

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Factors to Consider Before Buying Grill Mat for Composite Deck

There are many different types of mats for decks; some are good for a particular kind of surface, and another is best for another type. You should make sure that you have a choice between different types of grill mats that suit your need the best. If you have to install a grill mat for your deck, there are a number of factors to consider before you go ahead and buy one.

Types of Grill Mats

It is always necessary to make sure you buy the right mat for the job at hand. This is especially true if you plan to install a mat on a composite deck. There are various types of mats you can choose from, and the most important thing to look for in any mat is its durability of it.
The durability of a mat depends on the material it is made of, the kind of material it has, and also how well it is engineered. It is possible that you can get a mat for outdoor purposes that is sturdy enough for your needs, and it can last for years. However, some people also use it for indoor purposes, and you might want to take advantage of the high durability and the low cost in this case.
If you are a DIYer, you might like to purchase a mat that is suitable for a DIY project, and it can be easily removed. However, a mat that is hard to remove is not a good idea if you cannot do it by yourself, so it is advisable to keep that in mind while looking for a mat.


The first consideration you need to make when buying a mat for outdoor use is its durability of it. The type of mat you use should be able to withstand the weather, particularly in the summer. In most cases, mats are made to withstand the sun.
There are many different kinds of materials, which may be natural, synthetic, or a combination of both. Some may be more durable than others, and you need to look for that in order to get a mat that lasts for a long time.
One way of making a mat more durable is by making it thicker. The thickness of a mat may affect the way it looks, and it can make it heavier as well, but that will not necessarily mean that you get a mat that lasts longer.
Another way of making a mat more durable is by making it more rugged and robust, making it much easier to handle heavy loads. Finally, for outdoor purposes, you need a mat that is capable of handling a wide variety of weights.

Ease of Installation

This factor is important to consider if you have an in-ground pool. For example, you might have an in-ground pool, and you need a mat for it. You can get a good mat for the pool and make it stay in the pool if you find one that is easy to install and that stays put.
If you have a composite deck, you will need to consider the mat installation. If you do not know anything about the installation of a mat, then you will need to hire a professional for it.
The type of mat you need will depend on the type of deck you have, but you can also see the type of mat that is available. You can also find a guide online that tells you how to install it.


The price of a mat is also an important factor to consider. You should think about how much you are willing to pay for a mat and why you need one.


In conclusion, the Under Grill Mat is the best mat for composite decks. It is sturdy, easy to clean, and, most importantly, prevents food from sticking to the deck. With these five simple points in mind, you will have a hassle-free deck that looks great and functions great!

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