DIY Modular Grill Islands: Professional Masonry, Weekend Assembly

Stop settling for flimsy metal-frame kits that rust, rot, and shake.

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You want the permanence of a professional masonry kitchen, but you don’t want the headache of contractors, wet saws, or expensive labor. Our Unity System gives you the best of both worlds: high-end Indiana limestone and solid concrete masonry in an easy-to-assemble kit. Whether you’re a weekend warrior or a grilling pro, our mortarless, stackable modules provide a rock-solid foundation that lasts a lifetime. No specialized tools, no cutting, and no guesswork—just a premium outdoor kitchen built by you, in a single afternoon.

Why Unity? The Masonry Advantage

The difference between a backyard “project” and a permanent outdoor kitchen is the material. While most DIY kits rely on flimsy, rust-prone metal studs and cement board, the Unity System is built on the strength of solid, high-density concrete masonry. By moving away from temporary metal frames to our permanent, interlocking block system, you gain two distinct advantages: structural integrity that won’t flex or corrode, and a sophisticated, architectural aesthetic defined by genuine, 2-inch thick Indiana Limestone. We’ve replaced the saw and the screw gun with a simple “stack and bond” process—giving you a heavy-duty, professional-grade masonry build that stands the test of time, all without the need for specialized construction skills.

Grill Islands are Customizable

Customizable

Because our system is modular, you get the simplicity of a standard product with the design freedom of a custom build.

DIY Friendly

Easy Installation

If you can stack blocks and use a caulking gun, you can build a professional-grade stone island in a single afternoon.

Durable all masonry build

Durable Masonry

These frames don’t just look like stone—they are stone. They provide a rock-solid foundation that is impervious to rot, rust, and weather.

The Unity System: Smart Modules, Limitless Layouts

Large modular outdoor kitchen with pizza oven


Create a professional masonry structure that fits your specific space and cooking style. Our modular system gives you the freedom to design the exact layout you need without the constraints of a standard “box store” kit. Most outdoor kitchen projects stall because of the “compatibility headache”—trying to match a stone frame from one company with a grill from another. The Unity System solves this. We provide the complete package: the masonry structure, the countertops, and the premium appliances. It is a fully curated system where every component is guaranteed to fit, eliminating the research and the guesswork.

  • Outdoor kitchen layout shown with disconnected modules.
  • You can see how easily all of our grill islands connect.
  • You can even connect grill islands to make an exterior corner.
  • Connect multiple grill islands together for your ultimate outdoor cooking experience.
  • You can easily connect all of our kitchen components following a few simple rules.
  • Outdoor kitchen bar unit corner connect

Click image to enlarge.

Compact stone Grill Island outdoor kitchen module for large 32 inch Somerset grill.

Start with a Modular Grill Station Base

Every project begins with a Base Module. This is your primary cooking anchor. For gas lovers, our G-Series Islands come equipped with a premium, warranty-backed grill explicitly chosen to fit the stone frame. For charcoal and pizza enthusiasts, our Kamado and Pizza Modules feature universal platforms designed to support your Kamado smoker or pizza oven. You can buy from us or bring your own kamado or Pizza Oven, but all grill modules include a built-in grill to ensure a correct fit.

Stone outdoor Grill Island kit DIY

Expand with Interlocking Storage & Counter Modules

This is where the system adapts to you. If you need more counter space, deep storage, or a corner return, simply connect a Unity+ Module. These expansion units feature an integrated open-ended design that locks directly into your Base Module. They eliminate the “dead space” found in other kits, allowing you to turn a simple grill station into a seamless L-Shape or U-Shape instantly.

Outdoor Kitchen kit with bar seating 32

Configure Linear, L-Shape, or U-Shape Designs

Your patio shape shouldn’t dictate your cooking style. Because our modules are interchangeable, you control the final footprint. Keep it simple with a compact Linear island against a wall, create a social L-Shape bar for guests to gather around, or build a chef-grade U-Shape kitchen for maximum prep space. The modules are the same; how you arrange them is up to you.

Grill island with pizza oven, kamado smoker, and gas grill.
Grill island with pizza oven, kamado smoker, and gas grill made by connecting two modules at a 90° angle using a corner module.
Straight Grill Island with wood-fired pizza oven and Kamado smoker with stainless drawers and wood storage
Straight Grill Island with wood-fired pizza oven and Kamado smoker with stainless drawers and wood storage made from two modules.

Assemble Your Stone Grill Island in an Afternoon

See How Simple Real Masonry Can Be

How to build a grill island video
Unity K Plus Kamado Video
Unity L Outdoor Bar Build Video

Learn from the Pros – Check Out Our How-To Kitchen Videos

Building your dream outdoor kitchen shouldn’t feel like a major construction project. With clearly labeled components and detailed video instructions, your kit comes together smoothly, letting you focus on the fun of the build—not the hassle. Don’t just take our word for it. Watch Terry build a complete Unity G+ Grill Island right on a patio. From the first block to the final sear, this video proves that “DIY” doesn’t mean “Second Rate.

Hear What Our Island Owners Say

Customer built affordable DIY outdoor L-shaped kitchen

Real Stories, Real Outdoor Kitchens

❞

My friend and I—two old guys—built a Unity C+ and Unity Z+ Deluxe in an L-shape in just two days. Friends are blown away by the results! The only disappointment? That the build was over—it was that rewarding.

George W.

Click here for helpful article on how to design your perfect outdoor kitchen.

5 Tips for Designing the Perfect Outdoor Kitchen Layout

Plan Your Outdoor Space with Confidence

Not sure where to start? These are our top guides, videos, and tools to help you design and build smarter.

From site layout to kitchen planning, these foundational resources will guide you every step of the way.

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

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

Plan the Perfect Patio Layout: The ‘Big Three’ Outdoor Design Strategy

Download our Design Guide PDF.

Create Your Custom Outdoor Space. It’s easy with Our Layout Guide

Build Out Your Backyard with Coordinated Kits

Ashford fireplace with connected pizza oven

Add a Matching Outdoor Fireplace

Extend your outdoor season long after the sun goes down. Add the warmth, height, and architectural presence of a solid masonry fireplace to your design.

Pizza Oven Island

Add Wood-Fired Flavor with a Pizza Oven

Don’t stop at grilling. Whether integrated into your island or built as a standalone feature, these kits bring the authentic pizzeria experience to your backyard.

Ridgeman straight seat wall and fire pit kit

Expand Your Patio Space with Built-In Seating

Add a matching seat wall nearby to define your space, create natural flow, and offer effortless seating. It’s an easy way to elevate your layout and make the whole area feel more inviting.

Frequently Asked Questions

Does the kit come with the grill?

It depends on the model. For our Gas Grill Islands (G-Series), yes. We include a premium, warranty-backed gas grill to guarantee a perfect fit with the stone cutout. For Kamado and Pizza Oven Islands, the appliance is sold separately (or you can use one you already own). These modules feature universal platforms designed to accommodate standard ceramic grills and portable ovens.

Can I use my own gas grill?

To ensure structural integrity and a seamless finish, our G-Series islands are sold as a complete system, including the grill. Because our stone modules are cast with precise masonry openings, retrofitting a third-party gas grill often results in unsightly gaps or unsafe clearances. You are better off not designing an entire kitchen around a grill.

Do I need a professional installer?

No. We designed these kits specifically for DIY assembly. There is no need for complex plumbing, refrigeration, or electrical work; our components are designed to keep outdoor cooking simple. If you can stack blocks and use a caulking gun, you can build this island yourself in an afternoon.

How is the island shipped?

Your kit will arrive on pallets via a standard freight carrier. The delivery is “Curbside,” meaning the truck will lower the pallets to your driveway. From there, you can unstack the individual blocks and move them to your patio or backyard by hand or with a dolly.

Can I build this on a deck?

We generally discourage it. While it is possible with enough structural reinforcement, placing a solid masonry island on a standard wood deck is more trouble and expense than it is worth. These kits are heavy (exceeding 2,000 lbs), and most residential decks are not engineered to support such a concentrated dead load. The smarter move is to build your island on a concrete pad or paver patio adjacent to the deck. If you are determined to build on a raised deck, you must consult a structural engineer to reinforce the framing before installation.

Ready to Transform Your Outdoor Space?

Discover how Custom DIY Grill Islands & Outdoor Kitchen Module Kits can add functionality to your backyard.

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