Outdoor Fireplace Kits Built from Solid Stone Masonry

DIY-friendly outdoor fireplace kits with the look, weight, and permanence of real masonry.

Browse Fireplace Kits

Cornerstone fireplace kits are designed for homeowners and contractors who want a premium outdoor fireplace without starting from scratch. Each kit uses solid concrete masonry components, a firebrick-lined firebox, and a guided layout that makes it easier to plan, order, and build a permanent backyard focal point. Free planning resources, dimensions, and build guides are available before you buy, so you can compare models and choose the right fireplace kit for your patio, pool area, outdoor kitchen, or backyard living space.

Find the Right Outdoor Fireplace Kit for Your Space

Explore DIY-friendly outdoor fireplace kits built from solid concrete masonry components. Choose from compact fireplaces, standard fireplace kits, see-through fireplaces, and outdoor fireplace layouts designed for patios, pool areas, outdoor kitchens, and backyard living spaces.

Ashford Compact Outdoor Fireplace Kit without Wood Boxes

Ashford Compact Outdoor Fireplace Kit

A compact outdoor fireplace kit designed for smaller patios, courtyards, and tighter backyard spaces. Built from solid masonry components with the same stone-look presence as our larger fireplace kits.

from $3970
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Ashford Fireplace Kit shown with and without optional seat walls

Ashford Deluxe Small Outdoor Fireplace Kit

A compact outdoor fireplace kit with built-in wood storage boxes included. Designed for smaller patios, tighter lots, and projects where space and budget both matter.

from $4950
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Barrington DIY Outdoor-Fireplace Hardscape Kit

Barrington Outdoor Fireplace Kit

A premium outdoor fireplace kit with a classic wood-burning firebox and solid masonry construction. Designed for DIY or contractor installation in just a few days.

from $4550
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Barrington affordable outdoor fireplace with wood boxes and seat walls.

Barrington See-Through Outdoor Fireplace Kit

A see-through outdoor fireplace kit that lets you enjoy the fire from both sides. Ideal for dividing outdoor rooms, patios, pool areas, or open backyard spaces.

from $4550
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Large outdoor fireplace with wood boxes for raised patios and wooden decks

Bellrise Elevated Fireplace Kit for Decks

A deck-friendly outdoor fireplace kit designed for raised patios, elevated spaces, and flush-mount installations. Built to create a permanent fire feature where a traditional ground-level fireplace may not work.

from $6950
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Bremly DIY Outdoor Fireplace Kit base model and customized

Bremley Outdoor Fireplace Kit

A large outdoor fireplace kit with the scale, presence, and solid masonry construction to anchor a full backyard living space. Designed for wood-burning fires and DIY or contractor installation.

from $4550
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Bremley DIY Outdoor Fireplace Kit base model and customized

Bremley See-Through Outdoor Fireplace Kit

A large see-through outdoor fireplace kit made for entertaining on both sides of the fire. Ideal for patios, pool areas, and outdoor living spaces where the fireplace helps divide and connect the room.

from $4550
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Bremley-TV- fireplace kit with large area for mounting a TV

Bremview TV Fireplace Kit

A TV-ready outdoor fireplace kit designed to turn your patio into a complete outdoor living room. Built around the Bremley fireplace with space for a mounted TV and sound bar.

from $5250
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Fireplace garden volley.

Woodfell Outdoor Fireplace Ruin

A stone fireplace ruin designed to create an instant patio centerpiece with old-world character. Use it as a standalone gathering spot or combine it with other garden ruins kits for a larger outdoor room.

from $4450
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Compare Outdoor Fireplace Kit Sizes

A great outdoor fireplace does more than add heat. It gives the whole backyard a reason to exist. It creates the place everyone naturally drifts toward after dinner, the backdrop for a quiet evening outside, and the architectural anchor that makes an outdoor living space feel finished.

Outdoor fireplace size matters. A compact fireplace can make a small patio feel finished without overwhelming the space, while a larger masonry fireplace kit can anchor a full outdoor living area, poolside lounge, or outdoor kitchen. Use the comparison below to understand each model’s scale, footprint, and best-fit application before choosing your kit.

Every Cornerstone fireplace model includes detailed dimensions to help you plan the foundation, seating area, clearances, and overall layout with more confidence.

This is not a lightweight prefab fireplace dressed up to look substantial. These are real masonry outdoor fireplace kits with the mass, scale, and presence people expect from a built-in outdoor fireplace. The system is designed to make the project more approachable, but the finished result still looks and feels like a serious hardscape feature.

Scaled for Real Patios

Every fireplace model is intentionally proportioned — from compact footprints suited to tight patios to wider models designed for expansive hardscapes. Whether you’re centering a courtyard or anchoring a large entertaining area, there is a model scaled to fit. A Cornerstone outdoor masonry fireplace kit gives you a guided system with the mass and permanence people expect from a built-in backyard fireplace.

Fireplace Model Scaled Size Comparison

Cornerstone outdoor fireplace kits shown together for size comparison across compact, standard, see-through, and TV fireplace models. Popular upgrades are shown as well.
Each fireplace includes detailed dimension drawings to help you plan with confidence.

Built for Outdoor Rooms, Patios, and Backyard Living Spaces

An outdoor fireplace has a different job than a small fire pit. A fire pit gathers people in a circle. A fireplace creates a destination. It gives the patio a focal point, adds privacy and vertical structure, and helps turn open space into an outdoor room.

That is why the right fireplace kit matters. Scale, material, firebox proportion, and overall style all affect how the finished project feels. A compact fireplace may be right for a smaller patio or courtyard. A larger fireplace can anchor a full outdoor kitchen, poolside lounge, or covered living space. A see-through fireplace can divide two zones while keeping the space open and connected. A fireplace with a TV-ready layout can become the main feature of an outdoor entertainment area.

Cornerstone offers multiple outdoor fireplace kit styles so the fireplace can fit the way you actually plan to use the space. Some customers want a quiet place to sit with coffee in the morning. Some want a full backyard gathering area for family and guests. Others are building around a pool, outdoor kitchen, pizza oven, grill island, or covered patio. The fireplace should support that lifestyle, not feel like an afterthought.

Design Your Custom Stone Fireplace in Three Simple Steps

Stone outdoor fireplace base model with wood-burning firebox for starting a custom fireplace kit

1: Choose Your Fireplace Base Model

Outdoor fireplace kit with wood storage box and modular stone side optio

2: Add the Options That Matter to You

Finished stone outdoor fireplace kit with side storage boxes and wood-burning firebox

3: Build at Your Pace and Enjoy the Result

DIY-Friendly Outdoor Fireplace Kits, Without the Guesswork

Building an outdoor fireplace from scratch usually means hiring a mason, sourcing block and firebrick, figuring out dimensions, ordering caps and veneer, and hoping every part of the design works together once installation begins. That process can produce beautiful results, but it can also become slow, expensive, and hard to price upfront. A Cornerstone kit provides the structure and substance of a masonry outdoor fireplace while reducing the design and sourcing work that usually comes with a custom build.

Cornerstone fireplace kits simplify the process. The major masonry components are selected, sized, and packaged as a complete kit, giving you a clearer path from planning to finished installation. Each wood-burning outdoor fireplace kit is designed around a firebrick-lined firebox and solid masonry components. You still get the substance of a stone outdoor fireplace, but without having to design every course, cut list, and component from a blank page.

For experienced DIY homeowners, that means a fireplace project that is much more manageable. For contractors, it means a repeatable system that helps reduce layout time, sourcing headaches, and design uncertainty. Either way, the goal is the same: a better outdoor fireplace with fewer moving parts.

82 year old built his fireplace kit. So can you! Click here to discover his journey.
If this 82 year old can make it look easy- so can YOU

If an 82-Year-Old Can Build It, So Can You

Meet Jim, a homeowner who built his Cornerstone fireplace kit at 82.

His project shows why a guided, mortarless fireplace kit can be much more approachable than scratch-built masonry. With a clear layout, solid components, and some help with moving materials into place, the build becomes a step-by-step project rather than a custom masonry puzzle.

See Jim’s Fireplace Build

A Better Alternative to Scratch-Built or Lightweight Prefab Fireplaces

There are three common ways to add an outdoor fireplace: build it from scratch, buy a lightweight prefab unit, or use a complete masonry fireplace kit.

Scratch-built masonry gives you the most flexibility, but it usually requires more design work, more skilled labor, more sourcing, and more uncertainty in the final price. Lightweight prefab fireplaces can be faster, but they often do not have the same mass, permanence, or architectural presence as a true masonry feature.

Cornerstone gives you a better middle path: a real masonry outdoor fireplace kit with a more guided, predictable installation process. You get the look and substance of stone masonry, but with a system designed to help homeowners and contractors move from idea to installation more smoothly.

Every project still needs the right foundation, clearances, site planning, and local code compliance. But you are not starting from zero. You are starting with a proven fireplace kit, planning support, and a clear product family built specifically for outdoor living spaces.

Your fireplace kit comes with a firebrick lined firebox

Solid Core Engineering: Why a Stone System Beats a Veneer Kit

Our fireplace kits are engineered from 8-inch thick solid masonry blocks, creating a structure that is as permanent as it is beautiful. Unlike traditional veneer kits that require a separate frame and messy adhesives, our system uses the structural blocks themselves as the finished facade. This “all-in-one” engineering saves you days of labor and thousands in materials while delivering the authentic weight and texture of hand-laid stone.
While most of our designs feature classic single-opening hearths, we also offer see-through fireplace kits. These double-sided firebox kits are the perfect architectural solution for shared warmth and visibility between two distinct outdoor living spaces.

FeatureCornerstone Masonry SystemStandard Veneer Kits
Structure8″ Thick Solid Masonry BlocksHollow Metal or Wood Frame
FacadeIntegrated Tumbled Stone LookAdhered Thin Stone “Veneer”
AssemblyMortarless Dry-Stack (Hours)Messy Glues & Lathe (Days)
DurabilityLifetime Structural IntegrityProne to Rot & Stone “Pop-offs”
AccentsGenuine Indiana LimestoneCast Concrete or Faux Stone
Kit Building Progression to Patio

The Cornerstone System, Endless Possibilities.

Why build temporary when you can build permanent? Our kits utilize a mortarless masonry system that locks together with a precision fit, eliminating the saws and mess of traditional construction. It’s a unified approach to outdoor living: start with a grill island, add a custom fire pit, or anchor your patio with a grand masonry fireplace. Everything we build is designed to work together, giving you the freedom to scale your backyard retreat on a rock-solid, professional-grade foundation.

Learn How Our System Works

Mortarless Engineering: How Our Dry-Stack Fireplace System Works

Each outdoor fireplace kit is built from our custom-designed solid-stone masonry system. This complete system has been designed from the ground up to make a durable and expandable outdoor system to get predictable results faster.

Solid masonry blocks used in Cornerstone outdoor fireplace kits built in the USA

Built in the USA

Solid Masonry, Not Veneer

Our solid stone masonry kits are built to last. There is no veneer to peel, crack, or delaminate over time.

Installer stacking pre-cut masonry blocks for a no-cut outdoor fireplace kit assembly

No-Cut Assembly

Simply Stack & Glue

NO Mortar, NO Cutting, NO special tools or skills needed. Just stack the blocks like LEGOs.

Outdoor fireplace kit with modular stone options, wood boxes, and finished masonry layouts

Modular Options

Make It Yours

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

Real DIY Fireplace Builds from Homeowners Like You

  • 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 image of an amazingly built raised fireplace for deck
  • 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.
  • 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.

These are just a few typical results from builders with no previous experience.

Why Homeowners Choose Our Masonry Fireplace Kits

A fireplace isn’t just a feature—it becomes the heartbeat of your backyard and your home. 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.

Predictable Result

Our pre-designed systems need no mortar, no cutting, and no special skills. Each kit arrives complete, 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.

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.

With options and add-ons, you can design your fireplace over 750 different ways!

Fits Your Space

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

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

Built to last

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 or Build a Full Outdoor Kitchen

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

Check out your options for connecting modular kitchen kits to your fireplace
Fireplace + Grill Station
Full backyard patio with fireplace kitchen bar
Fireplace + Outdoor Kitchen

Cost, Timeline, and Long-Term Value

Cornerstone sells direct giving you unsurpassed value

Cost

You avoid unexpected expenses and cost overruns associated with custom installations.

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

Timeline

Outdoor projects can be time-consuming. Take control of your project on your time at your pace.

We build up to a quality standard- not down to a price point while maintaining the best bang for your buck

Value

You’re getting curated, expertly designed products that last, are usable daily, and require little maintenance.

Common Questions About Fireplace Kits

Yes. The firebox and chimney system is designed specifically for wood-burning use and adheres to proven masonry fireplace principles when installed as shown in the instructions. Every kit is designed for safe wood-burning use and includes a fire brick-lined firebox, deep hearth, and a stainless-steel spark arrestor for added peace of mind.

These fireplaces are built from structural masonry units, not surface veneer. The stone is part of the structure itself, not a decorative layer applied over framing.

No. The system is designed for no-cut assembly using standard tools. The blocks stack and bond together without sawing or specialized masonry equipment.

Yes. The kits are engineered so homeowners can assemble them confidently using clear instructions, dimensions, and planning resources provided before and after purchase.

Outdoor fireplace kits can be installed on patios, slabs, or properly prepared bases. Placement depends on site conditions, clearances, and local codes.

Your fireplace should be installed on a proper footing or an existing patio that can support the weight of a masonry structure.Yes. Like all masonry-style structures, your fireplace requires a stable foundation. Many installations use an existing concrete slab. Many people use a crushed aggregate (paver) base, while others may require a small footing depending on soil conditions and local requirements.

Yes. The modular system allows for layout adjustments and optional components so the fireplace can be tailored to your space and design goals. While most kits feature the same size firebox, we do offer two-sided and compact firebox kits to ensure you get the size fireplace your home needs. Wood storage boxes, chimney extensions and more are available for all our fireplace kits.

When installed properly, these fireplaces are built to last for decades. The masonry construction is designed for long-term outdoor use with minimal maintenance.

For many homeowners, an outdoor fireplace becomes a long-term focal point for gathering, warmth, and everyday use. Compared to a fire pit, a masonry fireplace provides directed heat, wind protection, and a more permanent presence within the overall outdoor living space.

Beautiful Deluxe Estate Barrington Fireplace Kit built by one of our customers
Customer built outdoor living space using wood storage boxes, wing walls, and a chimney extension.

Ready to Create a Fireplace That Belongs in Your Space?

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

Choose Your New Fireplace

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