How to Build an Outdoor Fireplace

Using Lueders Stone from KK Ranch Stone & Gravel

2023-02-02Updated: 2023-03-18 KK Ranch Stone & Gravel

Building an outdoor fireplace can add warmth and ambiance to your back yard. One of the best materials to use for this type of project is Lueders Stone from KK Ranch Stone & Gravel. Lueders Limestone is a versatile and beautiful Texas limestone that is well known for its durability, slip resistance, and wide range of color choices. 

Having an outdoor fireplace can provide many benefits, including:

    • Warmth and Comfort
      An outdoor fireplace is a great source of warmth and comfort, especially during cool evenings. It provides a cozy and inviting atmosphere for you and your guests to gather around.
    • Increased Property Value
      An outdoor fireplace can add value to your property and make it more attractive to potential buyers.
    • Improved Aesthetics
      An outdoor fireplace can serve as a beautiful and functional focal point in your backyard, adding visual interest to your landscape.
    • Versatility
      An outdoor fireplace can be used for a variety of purposes, including cooking, roasting marshmallows, and entertaining guests.
    • Increased Outdoor Living Space
      An outdoor fireplace allows you to extend your living space into the outdoors, providing a comfortable place to relax and enjoy nature.
    • Reduced Energy Costs
      An outdoor fireplace can provide an alternative heating source, which can help reduce your energy costs during the cooler months.
    • Low Maintenance
      An outdoor fireplace is low maintenance and easy to clean, making it a convenient and practical addition to your backyard.

By following these steps, you can build an outdoor fireplace that will last for years to come. Here is a step-by-step guide to help you build an outdoor fireplace using Lueders Stone.

Step 1: Plan Your Fireplace

The first step in building an outdoor fireplace is to plan it. You need to decide on the size, shape, and location of your fireplace. Make sure it complies with local building codes and fire regulations. You also need to consider the type of fire pit or fireplace you want to build. There are many options available, including fire pits, outdoor fireplaces, or fireplaces that are integrated into a built-in seating area.

Before building an outdoor fireplace, it is important to check state, local, or homeowner's association codes. There may be restrictions regarding outdoor fireplaces, such as meeting clearance requirements from structures and property lines, or even a ban on all fires. Outdoor fireplaces cannot meet codes designed for indoor fireplaces, which are based on room volume, wall length, ceiling height, etc.

It may be helpful to categorize the build as a fire pit, as this may allow you to meet the requirements in some cases, but it could also cause issues in places where open flames are not allowed. To ensure compliance, it is best to check with your local municipality before making a purchase.

In some cases, simply adding a screen in front of the fireplace opening may suffice. Keep in mind that restrictions outside of homeowner's associations are rare.

Step 2: Gather Your Tools and Materials

Before you begin building your outdoor fireplace, you will need to gather the following tools and materials:

  • Lueders Stone (or similar stone) from KK Ranch Stone & Gravel
  • Masonry mortar
  • Trowel
  • Masonry hammer and chisel
  • Level
  • Safety glasses
  • Dust mask

Step 3: Prepare the Fireplace Base

The next step is to prepare the base for your fireplace. The base needs to be level and stable, so it is recommended that you pour a concrete slab to support your fireplace. Make sure the slab is the correct size and shape for your fireplace.

The foundation of an outdoor fireplace, like any structure, is the most important aspect, even though it is not always visible. While the color and finish are important, they pale in comparison to the foundation, which is the key to a solid and reliable fireplace.

Local codes, pre-existing structures, grade changes, budget, and personal preference are all factors that can determine the type of foundation needed for your outdoor fireplace. However, it is often overlooked or given less consideration during the planning process. It is crucial to give careful thought to the foundation, as it is the foundation that ensures stability and longevity for your outdoor fireplace.

Building a foundation for your outdoor fireplace or grill island requires manual labor but does not have to be complicated. It is important to take your time and work methodically, without overexerting yourself. Timing is crucial when excavating, as the soil should be of the right moisture level. The best time to build is during spring or fall, when temperatures are mild and rains can keep the soil at the proper moisture level.

If you need to dig during a hot and dry spell, you can water the area with a garden hose for a few days before digging. Be mindful of not excavating too deeply or widely, as this may require excavation equipment that can cause damage. Instead, consider using a smaller machine like a tiller, which is easier to transport, rent, and operate.

To construct a concrete pad, you will need to plan, level, and build a wooden form for the concrete. The basic construction process is similar to laying a gravel foundation. You may want to consider pouring concrete and adding rebar for added stability.

Step 4: Install the Fireplace Base Course

Once your base is ready, you can begin installing the base course of your fireplace. Start by spreading a layer of masonry mortar on the concrete slab. Then, lay the first layer of Lueders Stone on top of the mortar, making sure to stagger the joints. Repeat this process until you have installed the entire base course of your fireplace. Use a level to make sure each layer is level and plumb.

Step 5: Build the Fireplace Walls

Now it is time to build the walls of your fireplace. Start by spreading a layer of mortar on the base course and then lay the first layer of Lueders Stone. Repeat this process until the walls of your fireplace are the desired height. Make sure to stagger the joints in each layer of stone and use a level to make sure the walls are level and plumb.

Step 6: Install the Firebox

Once the walls of your fireplace are complete, you can install the firebox. The firebox is the area where the fire will burn, so it needs to be made of fireproof materials. You can purchase a pre-made firebox or build one yourself using firebricks and refractory mortar.

Step 7: Finish the Fireplace

The final step is to finish the fireplace. You can do this by installing a mantel, hearth, and chimney. You can also add decorative touches such as stones or tiles to make your fireplace unique.