How to Build a Fire Pit on a Deck

Having a fire pit on your deck can be an excellent way to enjoy the outdoors. A fire pit will provide warmth and ambiance while also providing a great spot for entertaining family and friends. Building a fire pit on your deck is relatively simple. However, there are some important safety considerations you should consider before beginning.

How to Build a Fire Pit on a Deck

Building a fire pit on a deck offers several advantages over having one in your backyard or patio. For starters, a fire pit on a deck can be moved easily, allowing you to use the same spot repeatedly for different activities. Additionally, it is safer than having an open flame outside since no sparks or smoke can escape from the fire pit, reducing the risk of any accidents. In this blog post, You will learn how to build a fire pit on a deck in detail.

Materials You Will Need

  • Fire pit insert
  • Pressure-treated lumber (to build the platform)
  • Gravel
  • Concrete pavers or blocks
  • Level
  • Drill and screws
  • Masonry adhesive (for fire pit insert)
  • Fireproof mortar mix
  • Sandpaper
  • Landscape fabric

Step-by-Step Processes for How to Build a Fire Pit on a Deck

Step 1: Inspect the Area

Before starting any project, inspecting the area where you plan on building a fire pit is important. Ensure your deck is structurally sound and up to code for fire safety. Check with local authorities to determine if there are any restrictions or regulations against having an open flame on a deck in your area – this will vary from place to place.

Step 2: Find the Right Spot

Once you have inspected the area and determined that building a fire pit on your deck is safe, you need to find a spot. A good spot will be away from any combustible materials such as wood, furniture or plants – this will help protect them from heat and sparks. Make sure the chosen spot is on an even surface and in a location that will not obstruct any doors or pathways.

You Need to Find a Spot

Step 3: Choose the Right Fire Pit Design

The type of fire pit you choose should be based on your needs and the size of your deck. Look for a design with appropriate ventilation to ensure that smoke and sparks do not escape or cause any damage. You should also consider the materials used to build the fire pit – stainless steel is a popular option as it doesn’t rust and can withstand high temperatures.

Step 4: Prepare the Deck for Construction

With your chosen spot, design, and material in hand, it’s time to prepare the area. Remove any furniture, plants, or other items from the chosen spot. If your deck is wood, you will need to seal it with a non-flammable material such as asphalt roofing paper to protect it from heat and sparks. You may also want to use a fire retardant in the surrounding area for extra safety.

Step 5: Build the Fire Pit

Now that your deck is ready, it’s time to build the fire pit. Follow the instructions provided by your chosen fire pit design and use the appropriate tools for the job. Ensure you wear protective gear when working with sharp tools or materials to avoid injury. Once you have constructed your fire pit, it’s time to install it on the deck. You will need to secure the fire pit using appropriate screws and anchors – ensure they are drilled securely and won’t come loose over time.

Ensure You Wear Protective Gear

Step 6: Test the Fire Pit

Before you light the fire pit, it is important to ensure it is safe and functioning properly. Test the fire pit by lighting a small fire and monitoring it closely – look for any signs of smoke or sparks escaping. You are ready to enjoy your new fire pit if everything looks good.

You can easily build a fire pit on your deck with these steps. Always remember to keep safety in mind and follow local regulations when building and using your fire pit.

Safety Tips for How to Build a Fire Pit on a Deck

  1. Place the fire pit on a non-combustible surface: Make sure you are building your fire pit on an outdoor deck that is made of non-flammable material, such as concrete or brick.
  2. Leave plenty of space around the fire pit: Keep at least ten feet between the fire pit and any combustible material, such as wood or siding.
  3. Be sure to use a fire-resistant fire pit: Choose a fire pit specially made for outdoor decks that won’t spark or send embers flying around the area.
  4. Line the bottom of your fire pit with sand: This will help absorb any sparks or embers that may escape and reduce the fire risk.
  5. Keep a fire extinguisher nearby: Make sure you have a fire extinguisher nearby in case of an emergency.
  6. Don’t let children play near the fire pit: Supervise your children at all times when they are around the fire pit.
  7. Don’t leave the fire unattended: Always stay near your fire pit and make sure it is completely extinguished before leaving it.
  8. Don’t store combustible materials near the fire pit: Keep all combustible materials away from the fire pit, such as wood, leaves, paper, and fabric.
Keep a Fire Extinguisher Nearby

Following these safety tips when building a fire pit on your deck can reduce the risk of a serious accident or injury.

How Often Should You Inspect the Fire Pit on Your Deck to Make Sure It is in Good Condition? 

To ensure that your fire pit is in good condition and safe, it is important to inspect it regularly. How often you inspect the fire pit depends on how much it is used. If you use your fire pit frequently, you should inspect it at least once a month for any signs of damage. This includes looking for cracks, checking the joints and welds for any signs of wear, and inspecting the fire pit base for debris or rust.

You should also inspect all safety features like grates, spark screens, flue caps, and fire extinguishers at least once a month to ensure they are functioning properly. Additionally, you should check your fire pit to ensure that it is placed on a level and stable surface. If the deck you are using is not level, make sure to use a fire pit pad or other leveling materials as needed.

How Do You Clean and Maintain the Fire Pit, Including Removing Ash and Debris? 

Cleaning and maintaining your fire pit is important to keep it in good condition. It will also help to ensure that it lasts for a long time and provides quality outdoor experiences. To clean the fire pit, start by removing any large debris, such as sticks or leaves, from the pit’s interior. Once these items have been removed, use a shop vac to remove any ash or debris that may have accumulated. Make sure to wear protective gloves and a face mask while doing this, as the particles can be quite harmful if inhaled.

Once all of the debris has been removed, you’ll want to scrub down the interior of your fire pit with soapy water and a stiff brush. Once you’ve scrubbed the interior, rinse it with clean water and allow it to air dry before using it again. If your fire pit is exposed to the elements (such as rain or snow), you’ll want to make sure that you apply a layer of protective sealant around the exterior of the pit at least once per year. This will help to protect the integrity of the fire pit and prevent damage due to moisture.

How Can You Protect the Deck From Potential Damage Caused by the Heat From the Fire Pit? 

  • Choose a fire pit that is designed for use on wooden decks and patios, as it will have higher heat-resistant materials and better insulation to protect the deck.
  • Place the fire pit on a heat-resistant surface like pavers, concrete, or stone tiles instead of directly onto the wood deck. This will keep the heat away from the wood, preventing it from warping or catching fire.
  • Ensure to keep combustible materials such as leaves and debris away from the fire pit area, and always follow safety rules when using your fire pit.
  • Use a heavy-duty grill mat or fireproof blanket beneath the fire pit to protect the deck from embers and sparks.
  • Place a piece of fire-resistant glass or metal between your fire pit and the wood deck for extra protection.
  • Keep the area around the fire pit clean and clear of any combustible materials, such as leaves, sticks, or other debris that could catch fire.
  • Have a garden hose or bucket of water nearby just in case any sparks or embers manage to escape and come into contact with the deck.
Place a Piece of Fire-resistant Glass

Following these tips will help protect your wooden deck from potential heat damage caused by your fire pit.


In conclusion, building a fire pit on a deck is possible if you take the proper precautions. To do so, ensure your deck is built with non-flammable materials and is at least 10 feet away from any combustible surfaces. Additionally, use an outdoor fire pit cover when not in use to prevent sparks or embers from escaping. 

Ensure that there is a fire safety plan in place so that everyone can know the precautions to take when using the fire pit. I hope this article has been beneficial for learning how to build a fire pit on a deck. Make Sure the precautionary measures are followed chronologically. 

Photo of author

Adrian Green

Adrian has been interested in woodworking since he was a child. His father had a woodworking shop, and Adrian would help him out and learn from him. He gained basic carpentry knowledge as well as an understanding of how to work hard and take care of business. He enjoys woodworking as a hobby. He loves the feeling of creating something with his own hands, and the satisfaction that comes from seeing his finished products used by others. So he started this blog to spread his passion and knowledge to those interested in DIY wood-working projects. He knows that with a little guidance and practice, anyone can create beautiful pieces of furniture or décor from scratch.

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