Everything you need to plan, build, and finish your outdoor space.

Whether you’re just starting to plan or already mid-build, you’re in the right place. Get answers to real questions about cost, design, and what to expect — or jump straight to a dimension, instruction sheet, or manual if you already know what you need.

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Before You Buy

Design It

What to Expect

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Already have a kit? Jump straight to what you need.

Lost your instructions or need a quick dimension? Find it below — no scrolling required.

Outdoor Kit Dimensions resources

Kit Dimensions

Dimension PDFs
Outdoor Kit Instructions resources

Kit Instructions

Instruction PDFs
Build your fireplace in a weekend youtube video

Video Tutorials

Video Hub
Fire gear manual cover.

Manuals

Manual Library

Start Here

New to outdoor living, or not sure where to begin? Start with the basics — what it actually costs, what to expect from the process, and whether a fireplace, fire pit, or outdoor kitchen is the right fit for your space.

See all of our beginner guides →

This video will help you know what you need to think about before you start any outdoor living project.

Watch This Before You Buy Anything or Start Your Project

Our kits are easy to build for beginners with no heavy lifting

Is a DIY outdoor project right for you?

fancy curved seat wall and fire pit area

Fireplace or fire pit? 7 things to know

Overview of a lively patio party featuring an outdoor kitchen and fireplace, creating a warm and inviting atmosphere for guests.

How much does an outdoor living patio cost?

Owner Jake Shelby
Jake Shelby – founder of Cornerstone Rocks

We’re Committed to Your Satisfaction

At Cornerstone, we deliver quality, durability, and exceptional customer satisfaction. Our masonry outdoor living kits are affordable and designed to install easily and last decades. Our products are configurable to your unique needs and preferences, blending style and function in your outdoor setting. With Cornerstone, you’re not just buying a product but investing in a lifestyle that provides comfort, well-being, and unforgettable outdoor experiences.

Our kits are easy to build for beginners with no heavy lifting

Our Values

Plant native pollinator friendly plants when possible.

Sustainability

Made in USA

USA Made

Questions Worth Asking Before You Buy

Before you buy an outdoor fireplace or kitchen kit, it’s worth knowing the real costs, what’s actually included, and the mistakes most homeowners don’t find out about until it’s too late.

See all of our research articles→

Overview of a lively patio party featuring an outdoor kitchen and fireplace, creating a warm and inviting atmosphere for guests.

How much does an outdoor living patio cost?

Cornerstone Kits spread outside

What can I expect from a Cornerstone kit?

Cornerstone Block System

What are these made of?

Common Mistakes & Myths

Avoid all the most common mistakes and myths→

Trying to save too much space by placing a fireplace and grill station in the corner is not a good idea. The two people at the fireplace will be dealing with the grillmaster's butt in their face.

OUTDOOR DESIGN MISTAKE #1 Corner Fireplaces Do Not Save Space

Summerset Sizzler, 32 inch built in gas grill.

OUTDOOR DESIGN MISTAKE #2 Do Not Buy the Grill First

Summerset Built-in Outdoor Refrigerator

OUTDOOR DESIGN MISTAKE #3 You Need a Refrigerator

Large modern dream home with small functional outdoor kitchen.

Common Storage Mistakes

Built in Sizzler Outdoor Grill.

Are Expensive Grills Worth It?

Design It Around How You Live

Layout Basics
Materials and Finishes
By Kit and Shape

Once you know what you’re building, the next step is laying it out — from choosing paving materials and lighting to picking the right layout for how you actually cook and entertain.

See all of our design guides →

Outdoor living with dining room, living room, and kitchen

The Big Three: Proven Patio Layout Strategy

Man on patio using outdoor kitchen with pizza oven, gas grill and. egg smoker.

Best Outdoor Kitchen Layouts for Every Space

Pavers come in so many sizes colors and shapes. How do you choose?

Patio Paving Materials — Pros, Cons and Best Uses

Overview of a lively patio party featuring an outdoor kitchen and fireplace, creating a warm and inviting atmosphere for guests.

Low-voltage Patio Lighting Guide

What to Expect From the Build

Wondering if you can really do this yourself? Watch real builds start to finish, see what the process looks like step by step, and hear from homeowners who’ve done it — including one 82-year-old DIYer who built his own outdoor fireplace.

Learn what to expect in an outdoor project →

Gravel Foundation thumbnail for youtube video

How to Build an Outdoor Fireplace – Part 1

How-To build a fireplace step-by-step video

How to Build an Outdoor Fireplace – Part 2

Tips for starting an outdoor building project

Tips Before starting Any Build

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

Need the Details?

Looking for a dimension, a lost instruction sheet, or a specific manual? Find everything by product line below — fireplaces, kitchens, grills, and more.

Dimensions
Instructions
Manuals
Onboard Sheets
SDS

Want to browse everything we’ve written, by topic or keyword? Search the full Information Library.

Read Our Customer Testimonials

All customer reviews are unfiltered

Click here to see all our Testimonials. They are unfiltered for true authenticity.

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