Design Your Perfect Outdoor Space– Fireplaces, Kitchens & More Made Easy

Save time, skip the stress, and create an outdoor living space you’ll love with our modular, hassle-free system

California Customers click HERE for important information on shipping costs for your area.

Know What You’re Looking For?

Choose one of our specialized kit categories below if you already have a vision. We’ll handle the heavy lifting so you can get straight to building—or let a local pro assemble it for you.

Click here to learn more about our fireplace kits.

Fireplaces Kits

Discover our ready to assemble outdoor kitchens.

Kitchens & Grill Islands

Seat law and fire pit area kits

Fire Pits & Seat Walls

Fire spire stone fire chimney fireplace in Tan

Fire Bowls & Towers

Our kids are made in the USA and we use USA made products every chance we get- which is a lot.

Why Choose Cornerstone Kits?

Built To Last

Crafted with solid, USA-made masonry, our kits are designed for unmatched durability and quality.

Fireplace kit build- keep your blocks straight and flush

Easy To Build

Simple stack-and-glue construction with step-by-step instructions makes assembly a breeze for beginners.

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

Customizable

Mix, match, and tailor components to create the perfect outdoor living space for your needs.

Plan Your Space with Confidence

Explore expert guides, layout strategies, and real design ideas to bring your outdoor living vision to life.

plan your yard design

Learn How to Layout Your Space Like a Pro

Discover Our Big Three Design Strategy

Overwhelmed by outdoor design? Break it down into three easy zones—Kitchen, Living Room, and Dining Room. Our step-by-step guides help you tackle each one with confidence, clarity, and style.

30+ Outdoor Kitchen Design Ideas

Customizable Designs to Transform Your Backyard Space

Explore Outdoor Kitchen Designs
Jake Shelby – founder of Cornerstone Rocks

Our Mission: Making Outdoor Living Simple and Accessible

We started as designers—determined to help homeowners and contractors build beautiful outdoor spaces without the usual hassle. After years of perfecting our interlocking block system, we’re proud to ship these American-made kits straight to your door. We support you at every step so you can enjoy the outdoors sooner and more confidently.

Join the Homeowners & Pros Who’ve Already Simplified Their Builds

All customer reviews are unfiltered

Real customer testimonials.
Make your entire patio rock with our complete line of matching hardscape features.

Everything You Need for a Stunning Outdoor Living Space

Whether you’re adding a cozy fireplace, a full outdoor kitchen, or extra seating areas, our modular kits are designed to complement each other perfectly. No guesswork, no clashing finishes—just one cohesive backyard retreat that feels like an extension of your home.

Check out some of our hardscape kits:

Bremley Outdoor Fireplace kit in Castle Gray Blend

Fireplace Kits – Create a warm focal point for any gathering

Transform chilly nights into cozy get-togethers with a dramatic fireplace centerpiece. Our kits are designed for quick assembly and lasting performance, making it easy to bring that intimate, firelit ambiance to your backyard.

120° Medium Curved Seat Wall with couple relaxing around fire 4

Seat Wall + Fire Pit Kits – Cozy Seating & a Shared Flame

Combine built-in seating with the warmth of a crackling fire in one easy-to-assemble kit. Choose curved, straight, or corner designs to suit your space and bring people together for memorable evenings under the stars. (Seat wall–only kits coming soon!)

Spacious L-shaped outdoor kitchen with wood-fired pizza oven, combo grill, and ample drawer storage, perfect for large gatherings.

Kitchen & Grill Islands – Cook, dine, and entertain all in one place.

Make your outdoor space the hub of every party by adding a fully functional kitchen setup. Our modular islands come equipped for cooking, storage, and prep, so you can whip up delicious meals without ever leaving the conversation.

Front facing outdoor fire pit tower.

Fire Pits – Enjoy evenings outdoors around a cozy flame.

Extend your backyard fun well into the night with a simple yet striking fire pit. Our kits assemble quickly and provide the perfect gathering spot for friends, family, and marshmallow-roasting memories.

Your outdoor garden folly kit is infinitely configurable to meet your needs and design goals.

Garden Follies – Enchanting Structures for a Storybook Garden

Capture the whimsy of a vintage English countryside with our decorative garden follies. Designed to spark imagination, these eye-catching accents turn ordinary landscapes into magical hideaways—ideal for anyone looking to add a fanciful flourish to their outdoor space.



Obtain Backyard Nirvana in Just 3 Simple Steps

Lot of outdoor fire pit kits by cornerstone.

Pick Your Features

Browse our fireplaces, kitchens, and seating kits to find the perfect combination for your project.

Outdoor kitchen layout shown with disconnected modules.

Customize & Configure

Select your preferred finishes, layouts, and accessories. Everything fits together effortlessly.

Friends gathered around his straight seawall and square fire pit

Build & Enjoy

Our step-by-step instructions make assembly a snap—DIY it or hire a pro. Then sit back and relax!

Transform Your Backyard into a Peaceful Outdoor Living Haven

Outdoor living kits are more than just a home improvement project; they’re an investment in your quality of life. They offer a unique blend of functionality, beauty, and convenience, making them an ideal choice for anyone looking to enhance their outdoor living experience. Whether you’re a seasoned DIYer or a busy homeowner, these kits provide a straightforward path to owning a delightful outdoor retreat. So, why wait? Transform your backyard into a sanctuary where every day feels like a vacation.

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

Jim is 82, and he built our outdoor fireplace kit.

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!

Why Trust Cornerstone?

plan your yard design

Experience

Experience You Can Rely On

Our expertise ensures every kit is thoughtfully designed for exceptional quality, ease of assembly, and lasting enjoyment.

Transparent

Clarity

Clear Pricing, No Surprises

We believe in straightforward pricing with no hidden costs. Every kit comes with detailed plans and dimensions to ensure you know exactly what to expect.

Support

Support

Here When You Need Us

Whether you need design advice or installation help, our expert team is just a call or click away. We’re here to guide you every step of the way.

Look what customers like you have built with our kits

Customer built outdoor kitchen using Cornerstone.rocks Unity series modules.
Here is a small gallery showcasing some of our customers' builds.
Real Customer Builds by People Like You.

What to Expect When You Order an Outdoor Living Kit

Ordering an outdoor living kit is a straightforward process that leads to exciting results. Here’s what you can expect:

  1. Selection and Customization: Choose a kit that fits your space and style preferences. We offer customization options and functional upgrades to tailor the kit to your specific wants and needs.
  2. Delivery and Unpacking: The kit containing all the necessary components, from building materials to instructional guides, will be delivered to your house curbside. The pallets are easily moved on paved surfaces with a pallet jack. All the pieces can also be moved by hand and hauled in a standard wheelbarrow.
  3. Assembly: Depending on your comfort level, you can assemble the kit yourself or seek professional assistance. These kits are designed for easy installation. All the parts required are included. You do not need to cut any pieces. No special tools are required.
  4. Enjoyment: Once assembled, your new outdoor feature is ready to use. Whether it’s cozying up by a fire pit or enjoying an alfresco meal in your outdoor space, the possibilities are endless.

Cornerstone is Your Resource for DIY Friendly Outdoor Living Spaces

Unlock the full potential of your Cornerstone products with our extensive range of tutorials. From step-by-step guides on product assembly to essential maintenance tips, we equip you with all the knowledge you need for an effortless and rewarding outdoor living experience.

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.

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!

Corner Fireplace Myths

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 to plan...

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.

Ready to Build Your Outdoor Paradise?

Start your journey today with a Cornerstone kit designed for ease, quality, and timeless appeal.

Buy Kits Here

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