Turn Your Patio from Ordinary to Extraordinary—In a Weekend

Cornerstone Modular Kits—Easy to Build, Made to Impress

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Why Choose Cornerstone Kits?

Complete outdoor living area with cornerstone rocks, kits.

Cohesive

Matching, modular kits ensure every part of your outdoor space feels like it was designed by a professional.

Fireplace kit build- keep your blocks straight and flush

Simple

Clearly labeled kits, detailed video instructions, and simple assembly mean you can build confidently.

Front view of L-shaped outdoor kitchen layout with wrap-around bar, gas grill, and Kamado smoker for small spaces.

Professional

Professional-grade quality and precision-built kits make Cornerstone the trusted choice for contractors.

Pick, Assemble, Enjoy

Take the stress out of outdoor living and get your project underway immediately!

Relax. Outdoor living is easy. With our complete line of pre-designed kits, you can have the space of your dreams faster and easier than ever before. Choose one of our ready-made kits and start building with confidence. Obviously, each kit comes with a step-by-step instruction manual with illustrations. More importantly, each set of directions is thoughtfully presented in painstaking detail. Therefore, you only need to stack the blocks as shown in the illustrations and glue them together. We’ve thought out every detail, so you don’t have to.

Choose Your Kits

Our System Works and Fits Together

Lot of outdoor easy-to-build hardscape fire pit kits by cornerstone.

Step 1

Enjoy Easy Assembly

Detailed Instructions and YouTube Videos

Build your fireplace in a weekend youtube video

Step 2

Complete Your Space

Congrats- You Have a Killer Backyard

Complete outdoor living area with cornerstone rocks, kits.

Step 3

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

Our Hardscape Kits: Best Sellers for Good Reasons

Our Kits at Cornerstone are more than just products; they’re a testament to our commitment to quality, functionality, and aesthetic appeal. These kits have become best sellers, and here’s why:

  • Ease of Assembly: Designed with simplicity in mind, our Kits can be assembled quickly and efficiently, making them perfect for both DIY enthusiasts and professionals. This ease of assembly means you can enjoy your new outdoor feature without the hassle of complex installation processes.
  • Customizable Designs: We understand that every outdoor space is unique. That’s why our Kits come in various styles and designs, offering you the flexibility to choose the perfect match for your backyard theme. From classic to contemporary, there’s a design for every taste.
  • Durability and Quality: Constructed with the finest materials, our Kits are built to last. They withstand various weather conditions, ensuring your outdoor centerpiece remains as stunning as the day you installed it.
  • Centerpiece for Three-Season Entertainment: Our Kits serve as an elegant centerpiece for your patio, enhancing its aesthetic and functionality. Perfect for entertaining, they provide a warm, inviting focal point that extends patio use through spring, summer, and fall.
  • Increased Property Value: Installing one of our Kits not only enhances your living experience but also adds significant value to your property. It’s an investment that pays dividends in both lifestyle and financial returns.

Incorporating Cornerstone Kits into your patio design not only adds a visually stunning element but also creates a functional space that enhances your outdoor living experience. It’s not just an addition to your patio; it’s the heart of your outdoor home.

Learn More About Outdoor Living Kits

Small patio with TV fireplace

Outdoor Fireplace Kits

Outdoor Kitchen and Bar Party Pad

Outdoor Kitchens & Grill Islands

Fire pit and seating

Fire Pits & Seat Walls

Fire Spire Fire Tower

Fire Bowls & Towers

Tiny Ruin Garden Party

Garden Follies & Ruins

Our Kits are Beloved by Pros and Homeowners

DIY Homeowners

Easily Build with Confidence

  • Easy-to-follow video tutorials
  • Straightforward, guided assembly
  • Customizable modular solutions

Pros & Contractors

Fast Installation and High Margins

  • CAD drawings and 3D resources
  • Fast predictable installations
  • Bulk materials available
DIY customer-built Fireplace with deluxe wood boxes by beginner Dale F

Testimonial

❞

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.

Look what customers like you have built with NO masonry experience:

  • 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.

We have many articles and PDFs to help you create your dream outdoor living space

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

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

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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.

urban outdoor rooftop kitchen grill island stone gray

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!

Our Modular Kits Make Your Outdoor Living Project Painless

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

Save Time and Money with Speedy, Easy-to-Build Kits

Our pre-designed kits require no mortar, no cutting, and no special skills. Everything comes pre-cut and ready to assemble, making the process as clean, straightforward, and efficient as possible. With no unexpected delays or costs, you ensure a smooth and stress-free build.

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

Expert Designs and Cost Certainty—No Surprises

Our experts meticulously select each component to deliver the best balance of functionality, durability, and style, all at a transparent price. With detailed drawings, exact dimensions, proven brand appliances, and all-inclusive pricing, you know exactly what to expect.

Unity allowws you to create endless outdoor kitchen layouts.

Tailored to Fit Your Space with Endless Customization

While our kits offer the reliability of pre-designed systems, they also provide the flexibility to customize your space to suit your unique needs. Configure each module to fit your outdoor area perfectly, ensuring that your finished project meets and exceeds your expectations.

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

Durable, Low-Maintenance Solutions You Can Trust

Built from premium, weather-resistant materials, our products are designed for long-lasting quality with minimal upkeep. With our kits, you’re not just getting a beautiful outdoor space—you’re investing in a hassle-free experience that provides enjoyment for years to come.

Ready to Transform Your Outdoor Space?

Discover how Cornerstone Premium Hardscape Kits can help you achieve your Dream Backyard

Overhead view of stone outdoor kitchen layout

Outdoor Kitchen Kits

Build a real outdoor cooking space with modular kitchen kits, grill islands, pizza oven islands, kamado layouts, bar seating, and prep space designed for everyday meals and outdoor gatherings.

Browse Outdoor Kitchen Kits
Bremly outdoor fireplace and social gathering

Outdoor Fireplace Kits

Create the visual anchor for your outdoor living room with a permanent stone fireplace kit. Choose from classic fireplaces, TV fireplaces, see-through fireplaces, and fireplace combinations that make the patio feel like a true outdoor room.

Browse Outdoor Fireplace Kits
Fire pit and seating

Fire Pit & Seat Wall Kits

Add a relaxed gathering zone with fire pit kits, curved seat walls, and integrated seating layouts. These kits are ideal for casual evenings, conversation areas, and patios that need a lower, more open fire feature.

Browse Fire Pit & Seat Wall Kits
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