Outdoor Living Made Easy

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Affordable grill islands, fireplaces, and more to achieve your dream patio

DIY stone outdoor Bremley fireplace kit with double wood storage box and wing walls with columns

Fireplaces

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

Grill Islands

Fire Spire Tower Fire Pit

Fire Towers

Cottage Ruins Kits

Cottage Ruins

Masterson-VC Grill station with Summerset outdoor gas Pizza Oven

Grill Stations

All outdoor living kits ship FREE within the contiguous US*

Easy Remodel Patio Ideas You Can Do Over a Weekend with an Affordable DIY Fireplace and Grill Island Kit

Remodeled Patio with Cornerstone Fireplace and Grill Island

Don’t have time to research, compare, and design your patio space? Use our customizable kits for your dream outdoor living space. We offer easy-to-build kits, including grill islands, outdoor fireplaces, pizza ovens, and more. All are DIY-friendly and easy to mix and match to create a backyard paradise with no hassle.

You can find everything you need to create the perfect entertaining area in your backyard. We offer the industry’s top outdoor kits. We painstakingly design our features to be the highest quality yet easiest-to-build kits you will find at any price. Our kits are designed to an exact standard and never down to a price point. Yet you will still be able to afford the upscale looks and high quality at a price you can afford. 

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Garden Ruins Fireplace

Fireplace and Seat Wall Ruins Kit

Have an outdoor living space separate from a structure? Are you looking for a unique patio idea? Check out our Garden Ruins line. You can choose from several faux ruins kits to create an old cottage ruins that will be the centerpiece of an amazing outdoor living space.

Create a unique space by combining our Garden Ruins kits

Garden Entrance Ruin with Window Wall and Grill Island Patio Idea

Customer Gallery

If these people built it, YOU can too!

  • Customer testimonial pic

Inexpensive outdoor living DIY kits are fun and easy to build

Creating an amazing outdoor living space without complications.

After spending hours looking at backyard patio ideas, you are excited to start planning your own. Then the reality sets in. This can take lots of time and money. There are so many unknowns and so many products to choose from. You begin to get overwhelmed or suffer from choice overload and analysis paralysis. Well, you no longer need to worry. We are here to help. Cornerstone has assembled a dream team of installers, manufacturers, vendors, and designers to cut through the haze and bring you outdoor living features that are simple to build and simply work.

Too often, people underestimate what it takes to install a functional, cohesive outdoor vision successfully. People often have an idea but don’t know how to communicate it. Moreover, that can’t execute the vision. Even organized people that can make decisions don’t know what they are missing, what components work together, and what they don’t know. We are here to toss those headaches aside. Whether you plan to install your dream patio yourself (DIY), or have someone else install it for you, our kits will save you time and money. You will also know exactly what to expect from the finished product.

Customer Reviews

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

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Farrin W.
★★★★★

Really, You can build it

Don’t take our word for it. See what these customers had to say

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If you can read a level and instructions, you can glue this together. The instructions were easy to follow. Thanks Cornerstone!

Cornerstone-Rocks-Icon
Kelly V
★★★★★

What makes our kits so easy to build

Learn About our System

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.

How to Build an outdoor fireplace and more

Backyard idea with a tiny square layout design that features a stone Fireplace and stone BBQ Grill Island

Amazing Tiny Square Patio Ideas

Our small square patio ideas will help you achieve your dream backyard. You can make it happen quickly with our design layout and DIY kits.

Remodeled Patio with Cornerstone Fireplace and Grill Island

Easy Patio Ideas for Your Remodel Inspiration

Our pre-designed patio plans will show you how to get the essentials of a desirable outdoor living space using our affordable DIY kits.

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 interchangeably in...

Shipping is FREE in the Contiguous US*. Your order will be shipped as freight via an LTL carrier. Freight is not like standard carriers. Your order will be on pallets that weigh up to 2000 pounds each. A freight carrier will drop them CURBSIDE with a liftgate. Someone will need to be present to accept the shipment.

All shipments must be made on asphalt or concrete. We cannot deliver on gravel.

LTL carriers will deliver CURBSIDE only. The delivery drivers will have a pallet jack for you to move your order. Delivery drivers are not responsible for deliveries past the curb.

All orders are produced in the order they are received. Orders typically leave our yard in 7-10 working days. Once Your order ships, it can take an additional 5-10 working days to get to you.

You will be provided with updates on your order, as well as a tracking number once it ships. When your order lands at the final terminal, you will be contacted by dispatch to arrange a delivery time. Someone must be present for delivery.

Refunds will not be issued for order refusal due to the delivery method.

Sorry. LTL carriers will deliver CURBSIDE only. The delivery drivers will have a pallet jack for you to move your order. Delivery drivers are not responsible for deliveries past the curb.

All orders are produced in the order they are received. Orders typically leave our yard in 7-10 working days. Once Your order ships, it can take an additional 5-10 working days to get to you. 

You will be provided with updates on your order, as well as a tracking number once it ships. When your order lands at the final terminal, you will be contacted by dispatch to arrange a delivery time.  Someone must be present for delivery.

If you live on a gravel road, you have a few options. Many customers will arrange delivery to a locally owned business. From there, you can pick up your pallets individually or have them delivered by a local vendor with that capability.

You can also make your delivery to a friend’s house that meets the requirements. You will be responsible for getting your material to your site.

You can always arrange to pick up the delivery at the nearest shipping terminal. There will be a window you must pick up your pallets. After several days, freight yards usually charge storage fees.

Shipping is FREE in the Contiguous US*

*In rare instances, free shipping is not available. There are a few remote places in the contiguous US that cannot accept direct shipment (Non-Direct Shipments). These are remote locations that are not near any shipping terminals. These locations require an extra third-party shipper to reach their destination. Therefore, we reserve the right to refuse free shipping to these destinations. You can elect to pay the additional expense of the third-party shipment or arrange pick-up of your materials at the nearest terminal. You probably know if you live in one of these locations, but we will inform you if your address fits in this category. We will not charge you without your consent.

Kits do not come with a warranty. I don’t want to alarm you.  We don’t sell a finished product. We only sell the materials and plans to build your kit. Though easy to build, people can modify the kit and could potentially build it in any number of ways that we cannot warranty. The materials are guaranteed to be complete and free from defects. Moreover, they are high-quality materials.  Built properly and well-maintained, your kit will last for years.

Free shipping means shipping is included in the price. The cost of shipping freight is high. You may be able to return your order within 14 days of delivery. If you choose to do this, you will be responsible for paying for return shipping plus a 20% restocking fee.  You will often get back less than half of your purchase price.

We do not want anyone to lose money on a purchase. Please be certain of your decision before shipping tons of material nationwide. There are all kinds of information available on this site. Contact us if you still have questions or can’t find what you are looking for. We will answer any questions you have.

You can cancel your order before shipment for a full refund. Special orders may incur cancellation fees.

Refunds will not be issued for order refusal due to the delivery method.

We do not inflate prices so we can offer discounts- not even for Black Friday. 

Planning for and constructing a large hardscape feature such as a fireplace is no small decision. We want you to plan accordingly. You will not be penalized for ordering your materials when it fits your schedule.

The lowest price is always the one currently available. We do not want you to be upset that we run a discount or promotion after you purchase your kits. We would not cheat anyone that way.

Military Discounts:

Thank you for your service. We believe in freedom and equality for all. Therefore, we do not offer any special discounts for military, first-responders, police, or firefighters.