What to Put Underneath Fire Pit To Stay Safe

By Ronnie


Are you searching for more information on what to put underneath fire pit? If so, welcome to Delta Fire Pits.

Everyone loves to enjoy a fire pit in the backyard. You can have parties and enjoy a good time with your friends and family. You only need a fire pit, and it will make your night memorable. It’s a healthy activity that can refresh your mind. There are many portable and pre-made fire pits available in the market. You can enjoy them in your backyard without making a permanent fire pit.

People usually have a grassy surface or wood deck in their house. You can enjoy a fire pit over a wood deck or grass, but you need to take care of the safety measures. Fire pits can lead to an unwanted fire, so you need to be very careful while using them. If you are using a wood fire pit, then you need to be more cautious. Many people want to know what to put underneath fire pit. It’s an important question that can save you from many problems. Today, we will discuss this in detail and tell you what to put underneath your fire pit.

Why Do You Need Something Underneath a Fire Pit?

Fire pits can reach a very high temperature, which can be over 1200˚F. This high temperature can damage the wood deck or grass underneath it. In the worst cases, it can also lead a fire if used over a wood deck. Thus, it’s very dangerous to use a pit over the wood deck if you have not taken safety measures. Moreover, the embers falling from a fire pit can damage the expensive deck or start an unwanted fire.

If you are using the fire pit on a wood deck, then it can damage the grass underneath it. The pit can burn the grass and change its color. If you want to overcome these problems, then you need to use the fire pit on a concrete ground, or you need to put something under it that can protect the ground from high temperatures.

Things to Put Under a Fire Pit

We are going to tell you what to put underneath fire pit. You can use any of these things to protect the ground where the pit is placed. You can select the appropriate one according to your needs.

Concrete Pavers

The simplest method to protect the word deck or grass is by using the concrete pavers. You can lay pavers on the wood or ground. The pavers will absorb the heat, and the surface will stay safe. You can lay bricks or pavers, and they are also available at cheap rates. You can lay the pavers according to the size of your fire pit.

Protective Heat Shield

A protective shield is made of metal, usually stainless steel. The shield can bear high temperature, so there is no need to worry about the deck or grass. They are durable and can last for a long time. But metallic shields are expensive. Moreover, the shield is the only to protect the surface under the pit; it cannot protect from embers.

Fire Pit Mat

A fire pit mat is also a simple way of protecting the surface. It can protect the wood deck from embers. But it cannot bear high temperature and has the ability to pass the heat. Thus, you need to use a protective shield with the mat. The mats are excellent for protecting the wood from embers and other messes.

Reflective Deck Protector

Reflective deck protectors reflect the radiant heat coming from the pit. If you place such protectors under the pit, then you don’t need to worry about the surface. It can protect the surface. They are inexpensive and portable. You can also clean them with ease. They are perfect for using a fire pit on a wood deck. But they only cover the area under the pit, so you need to take another safety measure to prevent embers.

Now, you might have gotten a clear idea of what to put underneath fire pit.

Top Products to Put Underneath Fire Pit

For people who are confused about what to put under a fire pit, we have researched some of the best products that can protect the surface.

  1. Diversitech Outdoor Gas Grill BBQ & Fir Pit 48″ x 30″

This is a simple fire mat that can provide excellent protection to your wood deck or grass. The pad is made of temperature resistant material that can provide protection from the radiant heat up to 600˚F. It has multiple layers to provide optimum protection. Thus, it will prevent the fire pits from leaving burn marks and damaging the wood deck.

It provides protection from embers, sparks, oil spills, or grease. After using the mat, you can clean it without any hassle. It’s always ready to be used, and you can easily store it. It’s a versatile mat; therefore, you can use it for other purposes. You can use it under your gas grill, charcoal grill, fryer, or fire pit.

The important thing about the mat is its large size to protect from embers. You can use the fire pit on a wood deck or lawn without any worries.

The mat can bear high-temperature, but you cannot put a pit directly over the pad. You need to make sure that there is a minimum clearance of 12 inches; otherwise, the mat can melt-down.

Most importantly, the manufacturer offers a 10-year warranty, which is more than enough.


  • Versatile mat
  • Easy to clean
  • Large size
  • 10-year warranty


  • You need to maintain the clearance.

2)  Ember Mat | 67” x 60” | Fire Pit Mat

This is a very large pit mat, which can ensure protection from embers and sparks. Due to its large size, it covers a wide area to prevent any unwanted fire. Thus, you can enjoy the fire pit without any worries.

The mat can protect the ground from embers, sparks, grease, or any mess caused by a pit or grill. It is coated with food-grade silicone, which ensures durability and long life. There is also a reflective ending on the sides of the mat, which shines at night. So, even at night, you can see the boundaries of the mat.

The fire pit mat is portable. You can carry it to a campsite, or you can also use it in your backyard. The pit should be at least 10 inches above the mat. You need to maintain this clearance. It cannot prevent heat from passing to the ground surface, so it’s better to use a heat shield with it. It is only to protect from embers and ashes.


  • High-quality material
  • Easy to use
  • Large enough
  • Good for campsites
  • Keeps the floor clean


  • Cannot prevent the transfer of heat

3)  Newtex FirePad Deck Protector 36″

If you want to protect the surface under the fire pit, then this protector is an excellent choice. You can put it underneath the pit, and it will protect the surface. You don’t need to worry about wood burns.

The pad is made of Z-flex technology, and it protects the surface of the floor by reflecting the radiant heat. It can bear radiant heat up to 3000˚F, reflects almost 95% of the radiant heat. It keeps the wood surface safe from all problems. You can use it under the fire pit or grill. It’s perfect for protecting wood, lawn, artificial grass, or decorative stones.

You need to make sure the clearance is 6 inches from the fire pit to the pad. A pit cannot be placed directly over it.

The size of the deck protector is enough to protect the area underneath the fire pit. But it cannot provide protection from embers and sparks.


  • Excellent radiant heat reflection
  • Protect the surface under the pit
  • Affordable
  • Easy to store
  • Can withstand high temperatures


  • Cannot protect from embers

4) Zipcase Three Layers Fire Pit Pad Grill Mat Deck Protector

This is a high-quality fire pit pad that is made of three-layers. The top layer is reflective aluminum fabric, which reflects the radiant heat. The other layers are made of heat insulation material and fibers glass. It not only reflects the radiant heat, but it also prevents the heat from transmitting to the surface. It’s an ideal mat for pits.

The best thing about the mat is that there is a minimum clearance of 1 inch required because of its multiple layers. It offers optimum heat protection.

The fire pad is suitable to prevent the heat from the wood deck or grass, but it is not for embers. If you want protection from embers, you can use a fire pit mat with it.

It is durable and easy to store. After all features, this mat is available at a very affordable price.


  • Excellent protection
  • Multiple layers
  • Affordable price
  • Durable


  • Can be a bit small for some fire pits

Closing Thoughts

Many people worry about using their pit on a wood deck or grass. There is no doubt that pits can damage the surface and leave burn marks over it. But if you take proper safety measures, there is nothing to worry about. Many people want to know what to put underneath a pit. We have discussed different types of products that you can put under the fire pit to protect the surface. If you have any of the protective material under the fire pit, there won’t be any damage to the deck or lawn. So, make sure to use any of them to prevent any damage or accident.

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