Take the stress out of your hardscape project!

Managing all the variables of hardscape design and installation can quickly become overwhelming. Have time to review hundreds of materials and products? Do you know what products work best together? Never mind the resources wasted planning and troubleshooting unproven designs!


I offer a selection of complete, DIY-friendly kits that save you time and money. All products are premium and chosen based on extensive experience. Kits come with all the materials you need, including glue. You only need simple tools. No special skills are required.

Choose from our affordable Outdoor Living kits to save time and money

We have a foolproof system. We constantly design kits that fit your needs and coordinate with each other. More importantly, we only offer options that perform great, look amazing, and are low maintenance. You won’t be burdened by options with little value or dubious function. Thankfully, our color blends are timeless. They fit into their natural surroundings while coordinating with your home. Most important is that our kits are super simple to build. We pride ourselves on our easy step-by-step process for DIY enthusiasts. Therefore, you can complete most builds in a few hours for a grill-island to a weekend for a fireplace.

Choose from a full line of customizable Outdoor Fireplace Kits


Our Ashford small fireplace kit is designed for small lots in metropolitan and suburban areas and small garden spaces. Wood storage included.

Ashford Small Fireplace Kit

Fireplace, Standard

Our Ashford small fireplace kit is designed for small lots in metropolitan and suburban areas and small garden spaces. Wood storage included.

Barrington Fireplace for decks Hero

Barrington Fireplace for Deck

Fireplace, Standard

Looking for a fireplace to update your deck? Our flush-mount fireplace is specifically built for a raised deck or patio.

Barrington-Deluxe-Estate-in full glory

Barrington Outdoor Fireplace Kit

Fireplace, Standard

Our most classic design, the Barrington fireplace, is a premium outdoor kit. Anyone can quickly build this wood-burning stone look kit.

Barrington See Through Fireplace Kit-Deluxe Estate Gray

Barrington See Through Fireplace Kit

Fireplace, See-Through

The Barrington See Through fireplace is a premium kit. It includes everything you need to enjoy relaxing around both sides of the fire.

DIY stone outdoor fireplace kit loaded bremley

Bremley Outdoor Fireplace Kit

Fireplace, Standard

Updated and upscale, the Bremley fireplace, is a premium outdoor kit. This wood-burning DIY kit is large and includes everything you need.

Bremley See Through Fireplace Kit

Fireplace, See-Through

Bremley See Through Fireplace is made for entertaining around the fire. Great for large patios and pool areas. Customizable to your vision.

Bremley TV-Deluxe-Estate Fireplace kit

Bremley TV Fireplace Kit

Fireplace, Standard

Our Bremley TV fireplace allows you to add a TV mounting option to your Bremley fireplace and easily mount a 55' TV and sound bar.

Optional Add-ons for your Outdoor Fireplace Kit

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

DIY stone BBQ grill station fireplace addition smoker, grill, and oven

You have over 750 ways to make it Uniquely Yours

Combine Masterson Grill Stations in tons of ways with and without other add-ons and options. Choose from over 750 unique combinations to build a fireplace that is truly unique. All of our features, kits, and pieces are made to work together in an easy-to-build, easy-to-customize modular system that will help you achieve your ultimate backyard in less time using less money. By using our curated kits, you can know exactly how your outdoor living space will look before you buy. No more paper napkin plans. Choose our premium outdoor living kits and enjoy your dream backyard faster and cheaper than you thought possible.


Grill like a true Master Chef with a Grill Island Kit

The Masterson Grill Island line features grill stations that will become the cornerstone of your outdoor kitchen and yard. Importantly, Masterson Grill Islands offer a premium grill for professionals or an upgrade for passionate home chefs. Moreover, they are all made of top-quality materials with a thoughtful design. Indeed, they will last for decades.

Grill Island with Kamado and gas grill included - matching Grill Dome shown
Grill Island with Kamado and gas grill included – matching Grill Dome shown
Masterson D DIY Stone Grill Island Kit with Grill Dome Kamado Buff

Masterson-D Grill Island with Kamado Smoker

"Dome Home" Outdoor Stone BBQ Island with Grill Dome Kamado Smoker

The Dome Home- or Masterson D- grill Island is the ultimate island to house the nation's best kamado- the included Grill Dome Infinity X2!

Masterson K DIY Stone Grill Island Kit with Summerset Grill and Grill Dome Kamado with food

Masterson-K Grill Island with Kamado and Grill

Stone Grill Island with Grill Dome Kamado and 32" Sizzler Grill

Be the king of your neighborhood with our Masterson K Outdoor BBQ Grill Island. Includes large Grill Dome kamado and 32" Summerset grill.

Grill Island with Summerset Oven and grill

Masterson-O Grill Island with Pizza Oven

Stone BBQ Grill Island with Pizza Oven and Gas Grill

Masterson-O Outdoor BBQ Grill Island w/Pizza Oven makes a complete outdoor cooking center. Professional Summerset outdoor appliances included

Masterson Grill Island Kit with included Summerset 32

Masterson-G BBQ Grill Island

DIY Stone Grill Island Command Center

The Masterson BBQ Grill Island is a premium grilling station in a maintenance free package. It includes a Sizzler grill for professional results.

Our complete building system gets results fast and easy


Designed to make kits easily

These blocks were specially designed to make hardscape features. These are not repurposed retaining wall blocks. This produces easy-to-make kits that save time. The wedge shapes help increase the bonding ability for a solid product built to last.

Random stone look

Our stones are produced with through-body colored concrete. Then they are tumbled to give them a naturally aged look. The three sizes of block can create seven different face sizes creating the randomly laid appearance of natural stones.

No mortar needed

There is no mess and mixing of mortar. Our kits are simply glued together. You squeeze special adhesive from a caulk gun. This makes construction and cleanup a breeze.

Customer Gallery

If these people built it, YOU can too!

Upgrade your yard with our Unique Cottage Ruins Kits


Garden Entrance Ruin with Fireplace Patio Idea
Garden Entrance Ruin with Fireplace Patio Idea
Garden Entrance Ruin Solo

Garden Ruins Entrance

Classy Garden Entrance Idea

Garden entrance ruins are perfect for low-maintenance landscapes. Combine with other ruins kits to fit patios from 200-900 square feet.

Window Wall Room Ruins

Corner Room with Window Seating and Columns

Cottage Corner Room Ruins creates a patio area not connected to a structure. They are perfect for naturalized and low-maintenance landscapes.

Small Window Nook Corner Ruins with Sitting Wall

Garden Ruins Window Seating Nook

Seating Nook with Corner

Our Window Nook Ruins kit is the smallest, most versatile "building block" when designing your personal patio ruin. You can easily use two!

Cottage-Ruins-DIY-Fireplace-Wall-Kit only

Garden Ruins Fireplace Wall

Unique Fireplace Ruins for your Designer Ruins Patio

Fireplace Ruins is a patio centerpiece. Easily creates a spot for relaxing or entertaining. Combines with other ruins kits from our line.

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.

Cornerstone kits offer you many benefits

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.

Stainless Steel Spark Arrestor

Safety First

Designed to be safe to build and safe to use. No large pieces in high places. Large hearth, mantle, and spark arrestor included for fire safety.

Great Value

Outdoor living will give you a high ROI while making your property more desirable. Build your kit yourself and save even more.

Customer testimonial pic

Testimonial

This kit was one of the easiest DYI projects I have ever completed. And I have never worked with stone before. The instructions were for true beginners. It turned out great.

Farrin W.

Beginner