DIY Outdoor Fireplace Kits for Your Backyard

Maximize Your Home Investment with Affordable DIY Outdoor Fireplace Kits

Ashford Small Fireplace Kit

Luxury Small Fireplace with Firewood Storage Included

Barrington Fireplace for Decks and Raised Patios

Flush Mount Fireplace for Raised Decks and Patios

Bremley Outdoor Fireplace Kit

Upscale design will update your patio space

Barrington Outdoor Fireplace Kit

Barrington is a traditional stone-look fireplace that will add value to your home.

Bremley See Through Fireplace Kit

See-Thru design is great for large patio and pool areas

Barrington See Through Fireplace Kit

Two-sided fireplace brings twice the enjoyment

Bremley TV Fireplace Kit

Put the big game at the center of your outdoor living space

Easily Build the Perfect Outdoor Fireplace Kit for Your Backyard

It’s Easy. NO Mortar, NO Cutting, NO special tools or skills needed.

Cornerstone takes the unknowns and extra expenses out of creating a dream backyard gathering space. Your kit comes delivered with everything needed to create a wood-burning fireplace that looks great and drafts like a champ. Our full masonry fireplaces offer the best value you will find. Our fireplace kits feature ample-sized 28″ fireboxes lined with firebrick. The firebox gets wider passed the opening. This high-performing heat chamber is coupled to a full-sized chimney. The standard height is plenty tall to keep the smoke out of everyone’s faces. Unlike other kits, ours has a large built-in mantel and overhanging hearth. 

But it doesn’t stop there. We include a stainless steel spark arrestor for your safety. Other kits place large, heavy stones as chimney caps. These are dangerous to install and don’t prevent unwanted fires. We obsess over every detail to offer the best quality product in a complete package that is simple to install. It takes no special tools or skills to build our fireplace kits. And unlike other kits that are merely shells, you won’t have the added hassle and expense of covering your build with masonry veneer. Our outdoor living kits are complete upon installation. We believe we have a great product at a great value. But if you are unconvinced and still have questions, call or contact us. We will gladly help you in any way we can. 

Build Your Fireplace on a Weekend


This product exceeded my expectations from the ease of delivery through the very easy instructions to follow. I have no experience building these types of structures and I put up my fireplace in one weekend. Cant recommend this any higher!

Dale F.


Customize Your Fireplace to Fit Your Backyard Needs

Getting what you want is simple.  First, you choose your outdoor fireplace’s color, followed by its style or shape. You can choose between a standard firebox or a see-through firebox. All our fireplace offerings are large premium kits. Once you have chosen the model of your outdoor fireplace kit, customize it with add-ons and packages. We are adding more options all the time. The styles aren’t endless, but there is more than enough to build a custom outdoor fireplace for your dream backyard.

Choose from Four Fireplace Models – Then Customize to Your Taste

The Barrington model is the most traditional. You may want to choose a Bremley fireplace for a more modern design. Or, if you can’t miss the big game, opt for our Bremley TV edition. All models feature the same large 36″ firebox, as well as a large hearth and built-in mantel, except the Ashford. The Ashford is a compact fireplace that comes with firewood boxes included.

Buff Barrington DIY Stone Outdoor Fireplace Kit Standard





Bremley TV

Small outdoor fireplace designed with small yards in mind


What is the deal?

I Get a Free 3D Mockup! Is There a Catch?

There is no catch. The offer is simple but incredibly valuable. Send us a picture of your outdoor space, and we’ll send back a 3D mockup featuring up to four of our products on your patio—in scale! No worries. No second-guessing your decision. See your new fireplace or Grill Island in your space. It doesn’t get better than this.

Take Your Fireplace Kit to the Next Level with Optional Add-ons and Upgrades

From Chimney Extensions to Full-Featured Grill Islands, We Have What You want to Create the Ultimate Backyard Party Patio

Create the perfect setting for your outdoor paradise. No two backyards are identical. And no two families’ needs are the same. That is why we offer you tons of add-ons and options to configure your ultimate fireplace. All options are super simple to build and come with step-by-step instructions. Choose from these options or many more.

Chimney Extensions

Add chimney extensions in 24″ tall sections up to a max of 48″ extra height. Stop at any 4″ increment.

Firewood Storage Boxes

Add function to your fireplace with firewood storage additions. Available singularly or as a pair

Estate Wing Walls

Seat walls add a crucial seating and border wall to your space. Piers function as tables, too.

Masterson-DC BBQ Grill Station

Add a sweet Grill Dome kamado grill station to your fireplace

Masterson-GC BBQ Grill Station

Host a Party with this killer BBQ grill station add-on.

Masterson-KC BBQ Grill Station

Fireplace addition with BBQ grill and kamado smoker together

Masterson-OC BBQ Grill Station

Make yours a Fireplace with Pizza Oven and Grill

Masterson-VC BBQ Grill Station

Add a Pizza Oven to your Fireplace

Arizona Weathered Oak Fire Log Set 18

Gas Log Sets for Outdoor Fireplaces

Convert your wood-fired fireplace to gas-fueled

Cornerstone Kits are High-Quality and Easy-to-Build

You have several options to choose from when deciding what and where to buy outdoor features for your backyard makeover. It is easy to get caught up in features and sizes, and prices. The decision can be daunting. But choosing an outdoor living solution doesn’t have to be stressful. We want to make it easy for you. If you need any help, contact us. We’re a small business that is easy to get in touch with and eager to help you with your project.

Cornerstone has brought the best people and products in the industry to design a comprehensive outdoor living suite that benefits you. We have analyzed the designs and features of fireplaces, ovens, and grills to bring you the best value on the market. Importantly, all our kits keep safety and best practices at the forefront of their designs. In addition, we have improved features where needed and removed anything that is high maintenance or unnecessary. As a result, we only offer tried and true designs that will be around for years to come.

Cornerstone Block System

Top Quality

Designed to the highest measures using the best materials available. We build up to a standard, not down to a price point.

Fireplace kit build- keep your blocks straight and flush

Easy to Build

Expertly designed so your mom could build it in a couple of days. Simple stack and glue construction is easy for beginners.

Isolated View of a wide patio layout design that features a stone Fireplace with TV and matching attached BBQ grill and Kamado


Customize our kits, then mix and match them in infinite ways. We have a solution for your backyard dream oasis.

Roll of dollar bills on stack of hundreds.

Save Money

No professional designers or installers are needed. Know what you are getting and exactly how to build it- saving time and money.

Not All Backyard Fireplaces Are the Same

Discover the unique charm and functionality of Cornerstone kits compared to other backyard fireplace options. There are a few main construction options from which you can choose. Dive into the world of backyard fireplaces with us and see why Cornerstone stands out.

Fully Custom Fireplaces

Fully custom fireplaces offer unparalleled uniqueness, tailored to your specific aesthetic and functional desires. They provide a one-of-a-kind addition to your outdoor space.

  • Pros:
    • Completely customizable to your taste and backyard layout.
    • High-end materials and craftsmanship.
  • Cons:
    • Expensive due to the need for specialized labor and materials.
    • Time-consuming design and construction process.
    • Complexity in decision-making due to limitless choices.
  • Summary: Ideal for those who prioritize exclusivity and have the budget and time for a bespoke creation.

Kits Made to Veneer

  • Description: These kits offer a balance between customization and convenience, requiring a veneer to be applied over a pre-made structure.
  • Pros:
    • More customization than prebuilt options.
    • Sturdy and long-lasting.
  • Cons:
    • Still requires hiring a professional mason.
    • Expensive and time-consuming, especially with the veneering process.
    • Heavy and requires significant space for construction.
  • Summary: Suitable for homeowners who want a semi-custom look and are willing to invest time and resources.

Prebuilt Fireplaces

  • Description: Prebuilt fireplaces are ready-made solutions that can be installed quickly in your backyard.
  • Pros:
    • Fast installation with minimal construction time.
    • There is no need for detailed planning or design. Choose the model you want
  • Cons:
    • Limited design choices
    • Limited or non-existent customization options.
    • High costs due to the prebuilt nature.
    • Heavy machinery is required for placement, adding to the expense.
  • Summary: A convenient choice for those who prefer speed over customization and are ready to invest in the logistics.

Cornerstone Kits: The Optimal Choice

Cornerstone fireplace kits combine the best of all worlds: affordability, ease of assembly, quality, and aesthetic appeal.

  • Pros:
    • Cost-effective without compromising on quality.
    • Easy to assemble in a few days with clear, detailed instructions – perfect for DIY enthusiasts.
    • No need for heavy machinery or specialized labor.
    • Variety of designs to suit different tastes and spaces.
    • Customizable in over 750 different ways.
    • Matches entire line of grill islands, garden follies, and more.
  • Cons:
    • Some physical effort required for assembly.
    • Fixed designs, though varied, offer less customization than fully bespoke options.
  • Summary: Cornerstone kits are the smart choice for homeowners and contractors seeking a balance between quality, cost, and ease of installation. Our kits ensure you enjoy the luxury and comfort of a backyard fireplace, tailored to your lifestyle, without the hefty price tag and complex construction process.

Your Safety Guides Every Outdoor Fireplace Kit Design

Your fireplace kit has been designed up to a standard of excellence and safety. We don’t design down to a price point. From heavy angle irons, deep mantels and hearths, and stone appearance, see what we include in our kits that other companies ignore or charge more for.

Stainless Steel Spark Arrestor

Stainless Steel Spark Arrestor

Your safety is our top priority. Therefore, we include a spark arrestor with every kit. This addition will help prevent wildfires. It is much safer than a 100-plus pound stone found on other kits. Large stones don’t block floating embers from starting fires. Moreover, they are dangerous to install. We eliminate both problems with the best US-made spark arrestor available.

Large Hearth and Mantel

Can you believe some brands charge over a thousand bucks for a hearth? Hearths are needed to catch popping embers or if a fiery log rolls out of the firebox. Of course, our hearth comes included. Per best practices, we design all our fireplaces with a deep 12-16″ hearth for safety. Add a screen in your style for extended safety.

Large Hearth and Mantel
Standard Fireplace Hearth

Performative Firebox

Our wide firebox dimensions help produce great draft and heating efficiency. The opening is wide to allow ample room for your fire while not being overly wide and inefficient. Firebricks add heat retention and longevity. Not likely needed in a lifetime, but the firebrick is a liner that can be replaced and protects the walls of your fireplace.

Cornerstone Fireplaces are Affordable Luxury for Every Backyard

Do you love the crackle and warmth of a real wood fire? Are you looking to add a wood-burning hardscape feature to our backyard? Perhaps you carve the ease of a gas-fired fireplace. Whatever your choice, you have come to the right place. Cornerstone offers everything you need to turn your boring backyard into the envy of the neighborhood. Are you looking for something traditional? Our Barrington fireplace kit is at home in any decor. Perhaps you want a more modern fireplace. Check out our Bremley outdoor fireplace. Do you want something more upscale to raise your home’s value? Try adding options and upgrades to your fireplace kit. 

Perhaps you are a bit more daring or are looking for a backyard centerpiece the likes of which no one has seen. Experience our Fire Spire kit. A hybrid between a fireplace and a fire pit, the Spire is a functional fire-containing sculpture that stands approximately seven feet tall. This exciting new fire feature mimics an old-world tower ruin. It will be the center of attention at your backyard barbeque. It is also great for burning limbs and debris around the yard. Be bold. Claim your backyard dominance with our striking Fire Spire ruins kit.

Step-by-Step Guide Build Your DIY Outdoor Fireplace Kit on a Weekend

Build your fireplace in a weekend youtube video

Learn from the Pros – Check Out Our How-To Videos on YouTube

You will learn what to expect when building this project yourself. All of Jake’s kits are perfect for installers or DIYers. You don’t need any special skills or tools. All the pieces you need are included in your kit. There is no cutting or mortaring the blocks. You simply stack and glue the block together.

Real builds from customers just like YOU
Real builds from customers just like YOU

Master your Outdoor Projects with Our How-To Guides

We pride ourselves on keeping things simple and effective

Unlock the full potential of your Cornerstone products with our extensive range of tutorials. From step-by-step guides on product assembly to essential maintenance tips, we equip you with all the knowledge you need for an effortless and rewarding outdoor living experience.

Quality plastic patio furniture is always a viable option

Maximize Your Patio: 10 Tips for Choosing Outdoor Furniture

Our tips help you craft your dream patio by making strategic decisions about patio furniture while maintaining functionality and longevity.

Outdoor patio

How-To Layout Outdoor Plans Before Construction Using Simple Tools

This guide introduces simple yet effective techniques that allow you to precisely lay out your outdoor projects using only simple tools.

Working in the garden is relaxing and has many health benefits.

Design Your Outdoor Living Space with Purposely Chosen Plants

Learn to Enhance your outdoor living space with strategic plant choices. Softscaping is the soul of your outdoor living and patio areas.

building your screed/batter boards

How to Build an Outdoor Fireplace- Part 1

This article has actionable steps to follow when undertaking a backyard project, like installing a fireplace kit or other hardscape project.

Why buy our DIY kits when creating your outdoor living oasis?

1. You will Save Money with Our Easy-to-Build Kits

Custom hardscape projects can get expensive fast. You can be out thousands of dollars and still be in the planning stage. Then, you pay for your contractor to troubleshoot their mistakes. Remove costly overhead by using our expertly designed kits. You can customize them to your needs and budget.

2. You will Save Time with Our Customizable Kits

Getting a result isn’t easy. You must plan and research materials, products, and best practices (or contractors). Then someone must put the plan into actionable steps. Months can pass before a shovel hits the dirt. Using our predesigned and tested kits to get your project underway.

3. You will Upgrade Your Outdoor Living on a Budget

Now is the time to spend money on your home. Most investments are losing value, and your money loses power sitting in a bank. Put money into your property that you can enjoy. Upgrading your home and expanding its useability isn’t just a monetary investment; it’s an investment in well-being. Moreover, you’ll recoup your investment when you sell your property.

4. You won’t need skilled labor installing our easy-to-build kits

You deserve a fantastic personal space to relax and recharge. Moreover, you deserve a rockin’ pad to throw parties and entertain guests. You also know how many hours procuring a rockin’ pad can take. Spend time enjoying your killer patio- not building it. Most of our DIY kits can be built in a weekend or less. You don’t need special tools or skills- our kits are fun and easy to build.

Effortlessly Build Your Fireplace in a Weekend

Transforming your backyard with a stunning fireplace is no longer a task reserved for professionals. Cornerstone kits make this dream easily achievable for beginners, allowing you to construct your own fireplace in just a weekend. You can confidently undertake this task, regardless of your experience level.

Simplicity and Guidance

Cornerstone kits are meticulously designed for ease of assembly. Each kit includes user-friendly, detailed instructions that guide you step by step. This simplicity ensures that even those new to DIY projects can confidently navigate the building process without feeling overwhelmed.

Quick and Cost-Effective

The beauty of our kits lies in their efficiency. You save time and money, bypassing the need for expensive professional services. In a single weekend, you can have a fully functional, aesthetically pleasing fireplace ready to enjoy, representing a significant saving compared to custom-built alternatives.

A Fulfilling DIY Journey

Building your own fireplace with a Cornerstone kit is more than just a weekend project; it’s an empowering journey. The process is designed to be straightforward and rewarding, making it a perfect venture for beginners. You’ll finish with a beautiful fireplace, a sense of accomplishment, and the joy of creating something lasting for your home.

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