DIY Outdoor Fireplace Kits: Solid Stone Masonry System

Stone Outdoor Fireplace Kits Built for Fast, Affordable Backyard Upgrades

Shop our Solid Stone Masonry Fireplace Kits

How Our Solid Stone Masonry Fireplace Kits Work

Not all stone outdoor fireplace kits are designed to become permanent features. Ours are. Each kit is a solid stone masonry system, built from high-density tumbled blocks and fully lined with firebrick for heavy-duty wood burning performance.

Unlike temporary solutions, our kits deliver the mass and durability of a hand-laid rock fireplace—because the structure is the finish. The difference is how it comes together: a carefully engineered system that assembles cleanly with no cutting, no mortar, and no veneer. Whether you’re planning a complete outdoor living space or adding warmth to an existing patio, our masonry kits create an architectural focal point that feels intentional, well-built, and made to be enjoyed for generations.

All Kits are made with SOLID masonry made in the USA

Built in the USA

Our solid stone masonry kits are built to last. Because the structure is the finish, there is no veneer to peel, crack, or delaminate over time.

Easy for beginners- we have step by step instructions and informational videos.

Easy Interlocking Installation

NO Mortar, NO Cutting, NO special tools or skills needed. Just stack the interlocking blocks for a permanent, weather-resistant outdoor feature

See how you can customize your fireplace and combine it with other kits and options to make your outdoor patio uniquely yours.

Custom Masonry Options

Mix, match, and tailor components to create the perfect outdoor fireplace for your personal needs.

Explore Our Ready-to-Assemble Wood Burning Fireplace Designs

Find the outdoor fireplace kit that fits your space, your budget, and your style—all built from solid masonry blocks and designed for easy, no-cut installation.

Choosing the Right Outdoor Fireplace Kit for Your Patio

Choosing the right outdoor fireplace comes down to how you plan to use your space. Start with the basics: Do you want a classic single-sided fireplace that anchors one main seating area, or a see-through fireplace that warms two zones at once? From there, think about your fuel preference. All our kits are engineered as safe, heavy-duty wood burning fireplaces. They include a stainless steel spark arrestor and firebrick lining to handle high heat. Prefer gas? You can easily swap in a propane or natural gas log set at any time.

Next, consider placement. Your fireplace should sit on a proper footing or concrete pad or an existing patio that can support the weight of a masonry structure. Review the detailed dimensions and CAD drawings on each product page—they make planning simple. If you’re working with a raised patio or deck, look at our Bellrise for Decks, which is engineered for elevated builds.

Finally, be honest about your build style. Most homeowners complete their fireplace over a relaxed two to three days using basic tools. If you prefer help, landscapers and handymen love working with our kits because they require no cutting or mortar. The result is the same: a durable, low-maintenance outdoor fireplace you’ll enjoy for decades.

Design Your Custom Stone Fireplace in Three Simple Steps

Building a custom outdoor fireplace kit for your backyard patio is straightforward with Cornerstone’s proven system. Our modular DIY fireplace kits let you create the look you want for your home—classic or contemporary—without the stress of sourcing materials or hiring a mason. Just pick your stone color, choose your firebox style, and start building your outdoor living retreat.

1. Choose Your Outdoor Fireplace Model

We make it easy to start. Pick from our selection of modular outdoor fireplace kits, each firebox kit is designed to suit different backyard styles and needs. From the space-saving Ashford to the elevated Bellrise for decks and patios, every model is crafted with solid concrete block construction, firebrick lining, and a refined stone finish.

Barrington outdoor fireplace comes in standard and 2-sided options. We even have an option for decks and raised patios.

Barrington

Bremley contemporary outdoor fireplace kit is availablein standard and two sided firebox options.

Bremley

Our Bremview TV fireplace kit has a large smokechamber section so you can easily add a 55" TV.

Bremview TV

Our Ashford model is compact in size but large on features.

Ashford

2. Customize Your Fireplace Kit with Popular Add-Ons

With all of our options, add-ons, and their configurations, you can build a fireplace in over 750 different ways! Configure every option to suit the wants and needs of your patio space. You can add grill islands and a pizza oven to your fireplace. But Most people start with these simple customizations below. Add these simple upgrades to our different base models to create your ultimate customized outdoor fireplace. You can use all options in singles or multiples. They can be fli-flopped. Some may even have an option or two of their own!

Firebox with Deluxe wood boxes option in cottage buff

Deluxe Wood Storage Boxes

We call a pair of wood boxes our "Deluxe" option. This common upgrade for your fireplace kit gives you stylish...

Brimley fireplace kit in buff with attached seat walls

Estate Wing Walls

Estate wing walls add elegance to your fireplace. They make your fireplace appear larger and add separation between your patio...

Chimney Extensions

Chimney Extensions

You can add chimney extensions in 24" tall sections up to a max of 48". Our outdoor fireplaces are not...

We offer outdoor gas log burner sets for your fireplace kit.

Gas Log Sets for Your Outdoor Fireplace Kit

Expertly crafted, ultra-realistic gas log sets elevate your outdoor environment, creating an unforgettable gathering around the fireplace.

3. Create and Enjoy Your Finished Outdoor Fireplace

Once you’ve chosen your model and any custom add-ons, it’s time to bring it all together. Your fireplace kit arrives ready to assemble, with pre-cut concrete blocks, detailed instructions, and everything you need to get started—no special tools or skills required.
Most customers complete their build in a weekend. What you get in return is more than just a fireplace—it’s a permanent backyard upgrade you’ll enjoy for years to come. From quiet evenings by the fire to memorable nights with friends, there’s real satisfaction in saying, “I built this.”

Beautiful Deluxe Estate Barrington Fireplace Kit built by one of our customers

Real Rock & Stone Fireplace Builds From Homeowners Like You

See how homeowners transformed their patios with our DIY kits. From rustic rock fireplace designs to modern stone layouts, these projects were built by real customers in a single weekend. Well, a few may have taken more time.

  • Customer built outdoor kitchen using Cornerstone.rocks Unity series modules.
  • Customer built outdoor fireplace with pergola.
  • Customer built outdoor fireplace kit with wood boxes night scene
  • Outdoor fireplace kit with TV customer build
  • Customer Pic of raised Barrington fireplace kit
  • Customer outdoor fireplace kit diy wing walls grey
  • Ashford small outdoor fireplace kit Customer Build
  • Customer built Outdoor Fireplace kit with wood storage boxes
  • Customer image of an amazingly built raised fireplace for deck
  • Customer testimonial pic
  • Customer pick Barrington outdoor fireplace kit with wing walls
  • Customer pick Barrington with wing walls back view.
  • Customer pic two sided fireplace patio.
  • Our great customers make great fireplaces.
  • A great fireplace build from a customer of ours.
  • An impressive Ashford outdoor fireplace build sent in by a customer.
  • Another great build from a great customer of ours.
  • Stylish customer build with custom mantle.
  • This customer built a relaxing getaway in their backyard.
  • Another impressive customer build.
  • Customer submitted build of a Barrington Deluxe.
  • Customer image of a really tall chimney.
  • Customer outdoor fireplace build.
  • Customer build of outdoor Grill Island with DIY LED lighting.

Why Choose Our DIY Masonry Fireplace Kits?

A fireplace isn’t just a feature—it becomes the heartbeat of your backyard. It’s where people gather, talk, and linger long after sunset. And the best part? You can create all of it in a single weekend—no special tools, no subcontractors, no waiting. Build it, brag about it (or don’t), and enjoy a backyard your friends won’t stop talking about.

With our guidance and easy kits, you can build your dream outdoor living space in a weekend.

Save Time: The Look of Hand-Laid Rock in Hours

Our pre-designed systems need no mortar, no cutting, and no special skills. Each block arrives clean, consistent, and ready to assemble, giving you a fast, stress-free build with zero surprises.

Know exactly what to expect with our detailed drawings, with dimensions and even our kits plans.

Expert Designs and Cost Certainty—No Surprises

You get detailed drawings, exact dimensions, and transparent pricing on every kit. Our curated components ensure the perfect blend of function, durability, and style—so you always know exactly what you’re getting.

Design your fireplace over 750 different ways!

Tailored to Fit Your Space with Endless Customization

Modular designs let you design countless outdoor kitchen and fireplace layouts. Mix, match, and configure each module to fit your space perfectly—pre-designed reliability with true custom flexibility.

Solid 8 inch masonry construction is fast to build durable and low maintenance.

Durable, Low-Maintenance Solutions You Can Trust

Our solid 8″ masonry construction is fast to assemble, weather-resistant, and built to last. You enjoy a beautiful outdoor space with minimal upkeep—and maximum longevity.

Add a Grill Station Directly to Your Stone Fireplace

Looking to take your backyard to the next level? All of our kits are designed to work together—whether you want your fireplace to stand alone or be part of a full outdoor kitchen with a matching grill station, bar, or countertop seating area.

Add a Unity G Grill Station to your outdoor fireplace kit to make a custom srill gtation

Unity-G Grill Station

Add a Unity G+ to your outdoor fireplace kit to make a custom grill station

Unity G+ Grill Station

Add a Unity K to your outdoor fireplace kit to make a custom Kamado station

Unity-K Grill Station

Add a Unity K+ to your outdoor fireplace kit to make a custom Kamado station

Unity K+ Grill Station

Add a Inity Z to your outdoor fireplace kit to make a custom Pizza Oven station

Unity-Z Grill Station

Add a Unity Z+ to your outdoor fireplace kit to make a custom Pizza Oven station

Unity Z+ Grill Station

Add a Unity C to your outdoor fireplace kit to make a custom Grill and Kamado station combo

Unity-C Combo Grill Station

Add any two or more unity outdoor kitchen modules to your outdoor fireplace kit to make a custom fireplace and cooking station

Multiple Unity Additions

Complete Your Space with a Matching Stone Outdoor Kitchen

All of our kits are designed to work together—whether you want your fireplace to stand alone or be part of a full outdoor kitchen with a matching grill station, bar, or countertop seating area.

Click here to view our u-shaped outdoor kitchen at layouts and ideas.
Browse Outdoor Kitchen Ideas
Browse our selection of configurable Unity Grill Stations and outdoor cooking / rill islands.
Explore Unity Grill Stations

How to Build a Stone Outdoor Fireplace (The Easy Way)

You Can Build Your Own Outdoor Fireplace With One Of Our Ready-To-Assemble Kits
These DIY outdoor fireplace kits are designed for real homeowners and landscapers, not professional masons. With pre-cut concrete blocks, clear step-by-step instructions, and no need for specialty tools, you can create a beautiful, long-lasting fireplace in just a weekend.

Even if you’ve never built anything like this before, our system makes it approachable. Most pieces weigh under 10 pounds, and while some heavier lifting (up to 30 pounds) is involved, it’s manageable for most DIYers. Whether you’re a weekend warrior or just starting out, you’ll experience the pride that only comes from building something with your own hands—something you’ll use and enjoy for years.

Ease and Expert Guidance Every Step

We offer guidance at every step along your buy to build journey

Budget-Friendly Outdoor Fireplace Kits

We offer high-value and budget-friendly fireplace kits to increase the value of your property

DIY Pride: A Project Worth Sharing

The pride of accomplishment of building an outdoor fireplace kit is real- but only takes one weekend!

Watch: Assembling a Stone Outdoor Fireplace in a Weekend

Build your fireplace in a weekend youtube video

Learn from the Pro – 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.

Helpful Guides for Planning Your Stone Outdoor Feature

These articles walk you through the most common questions homeowners have when planning an outdoor fireplace—from layout and safety considerations to creating a comfortable outdoor living room around it. They’re a great place to explore ideas, compare options, and feel confident about your design.

This customer built a barrington fireplace to create a backyard centerpiece for gathering with family and friends.

8 Benefits of Adding a Fireplace to Your Outdoor Living Space

Adding a fireplace to your patio transforms the way you use your outdoor space. Discover eight real benefits from comfort and ambiance to resale value and year-round enjoyment.

A firplace in a corner only has a quarter-circle (90°) for people to sit. This is effectively only good for two people.

Dispelling Myths about Outdoor Design #1- Corner Fireplaces

Corner fireplaces might seem efficient, but they often create more problems than they solve. Learn why placing your outdoor fireplace in the corner could limit your layout—and how...

You can build your own outdoor fireplace kit

Can Anyone Really Build an Outdoor Fireplace?

Doubt that you can build your own outdoor fireplace? It's incredibly easy. Don't take our word for it. Ask Jim- our 82-year-old customer!

Outdoor patio

Guide to Laying Out Patios, Kits, and More

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

building your screed/batter boards

How to Build an Outdoor Fireplace- Part 1: The Foundation

Before you lay the first brick, make sure you’ve covered the essentials. From understanding building codes to planning your patio layout and preparing a solid foundation, this guide...

Fireplace-Build-Hearth

Pros use our products to deliver results fast

When it comes to business, time is money! Get in, get out, and get paid quickly with our professional-grade outdoor living kits- FREE Shipping

Compact L-shaped outdoor kitchen with wrap-around bar, 26” gas grill, and Kamado smoker, designed for angled corner placement.

Outdoor Living Kits Can be Built on a Weekend

Cornerstone outdoor living kits are the simplest way to obtain a killer outdoor pad while saving precious time and money. DIY in a weekend!

Bremley TV-Deluxe-Estate Fireplace kit

How to Build an Outdoor Fireplace in 10 Easy Steps

Time to build your fireplace! You finished your foundation, and it is perfect. Now you are ready for the fun part. The build will go fast.

Large fire pit and seating area

Fireplace or fire pit? 7 things to know before you choose

Fire pits and fireplaces both feature fire for people to gather around, yet they are COMPLETELY different. They are not interchangeable. You can't just drag and drop them...

Frequently Asked Questions About Our Stone Fireplace Kits

What types of outdoor fireplace kits do you offer?

We offer two main styles: Standard (single-sided) fireplace kits for traditional backyard layouts and See-Through fireplace kits for patios that need a fire feature visible from both sides. Both styles offer the same solid construction and flexible design options.

Is this real stone, concrete, or a veneer?

It is a Solid Masonry System made from high-strength architectural concrete.

Unlike thin stone veneers that are adhered to a frame, our kits use solid, structural blocks where the structure and the surface are the same thing. Each solid block is tumbled to mimic the texture and character of hand-laid quarried rock. Each fireplace kit is built from solid, pre-cut concrete masonry blocks engineered for long-term outdoor durability. The firebox is lined with high-quality firebrick for safe, efficient heat management and a long service life.

Are your fireplace kits safe for wood burning?

Yes. Every kit is designed for safe wood-burning use and includes a stainless-steel spark arrestor for added peace of mind.

Can I install a gas log set in your fireplaces?

You can. Our fireplaces are built for classic wood-burning, but many customers add a gas log set for clean, convenient fires with the flip of a switch.

Where can I install an outdoor fireplace kit?

Your fireplace should be installed on a proper footing or an existing patio that can support the weight of a masonry structure. Each product page includes detailed dimensions and CAD drawings to help you plan the perfect location.

Can I install a fireplace kit on a deck or raised patio?

Not directly. However, our Bellrise for Decks model is purpose-built for raised patios or deck structures where weight and clearances matter.

Do I need a concrete pad or special base for installation?

Yes. Like all masonry-style structures, your fireplace requires a stable foundation. A local contractor or hardscape pro can help confirm your existing concrete patio’s load capacity if needed.

Do I need to cut any blocks or use special tools?

No. All blocks arrive pre-cut and ready to stack, so you won’t need saws, grinders, or advanced tools. Everything is designed for clean, predictable assembly.

Can a DIYer really build one of these fireplaces?

Absolutely. Our system stacks together like a LEGO-style building kit, guided by detailed, step-by-step instructions. Most customers complete their fireplace with basic tools and no prior masonry experience.

How long does it take to assemble an outdoor fireplace kit?

Most homeowners complete their build in 2–3 days, depending on pace and weather. There’s no mortar, no cutting, and no heavy machinery required.

Do I need a permit to build an outdoor fireplace?

Depending on your city, county, or HOA, you may need a minor fire feature permit or a quick local code review. Most customers report that the process is fast and straightforward.

How long will an outdoor fireplace kit last?

Your fireplace is built from dense concrete masonry blocks and firebrick—materials intended to withstand decades of weather and heat cycles. With regular use, these fireplaces provide long-term, low-maintenance performance.

Do outdoor fireplaces add value to a home?

Outdoor fireplaces are one of the most requested backyard upgrades and often deliver an excellent return on enjoyment and resale value. They create a true outdoor living room and extend how often you can use your patio.

Can I customize the look of my fireplace kit?

Yes. You can add upgrades and grill stations to personalize your fireplace. Our modular system makes it easy to integrate your own style.

How much space do I need for installation?

Space requirements vary by model. Each product page includes detailed dimension and diagrams that make planning simple. Compare your patio footprint to the dimensions to ensure the perfect fit.

Customer Testimonials for Our Outdoor Fireplace Kits

All customer reviews are unfiltered

Click here to see all our Testimonials. They are unfiltered for true authenticity.

Buy Direct and Save on Your Outdoor Fireplace Kit

Cornerstone sells direct giving you unsurpassed value

No Middleman

By purchasing directly from us, you avoid unnecessary costs. This means you get premium materials and designs at a price that works for you.

We offer direct support from browsing to building so your project is a success.

Direct Support

Need help with your project? When you buy direct, you can count on our team for personalized guidance and support, every step of the way.

We build up to a quality standard- not down to a price point.

Expert Quality

Buying from Cornerstone means you’re getting authentic, expertly crafted products designed to last—no compromises.

Ready to Transform Your Home Outdoor Living Space?

DIY Outdoor Fireplace Kits can add timeless beauty, warmth, and functionality to your backyard.

Buy DIY Outdoor Fireplace Kits Here

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