As you know, an outdoor kitchen is a huge investment. You want it to last as long as possible.
And you’re wondering: What are the best outdoor kitchen materials?
An outdoor kitchen is only as good as the materials it’s made from.
The trouble is… There’s a sizable lack of information about outdoor kitchen materials.
There’s some… But it’s sparse. You have to rifle through multiple articles just for a piece of information here and there. And then… There’s differing opinions between these sources.
Likely, this is leaving you feeling uncertain.
You want to feel confident in your decisions. And to do so, it’s essential to understand the ins and outs of outdoor kitchen materials.
If you want to deeply understand outdoor kitchen materials, you’ve come to the right place. Let this article serve as your personal guide to the best materials for an outdoor kitchen. Whether you plan to hire a contractor, go DIY, or buy a premade island… You’ll know what materials to look out for.
Ready? Let’s go.
Outdoor Kitchen Frame Materials
Starting off, it’s important to understand how an outdoor kitchen comes together.
Usually, there are three layers to the project. First, we have our frames. These are the “bones” of your outdoor kitchen.
The next layer is a surface for the cladding material to be adhered to. This is known as the substrate, or “muscle”.
Third is, of course, the cladding material. This is your finish… Or the “skin” of your outdoor kitchen.
Not all outdoor kitchen constructing methods utilize frames. However, many do!
We’ll be breaking down materials for each of the three layers… But for now, let’s talk about some common structural outdoor kitchen building materials.
Most commonly, you’ll see metal, wood, concrete blocks, or plastic structures.
Let’s go into detail on each.
Metal Frames
As it stands, metal frames are the most popular option.
Often, this is due to availability. Most companies provide either custom or out of the box metal frame designs.
There are some great benefits to using metal frames. They’re lightweight, easy to transport… And if you use a low gauge metal, they can hold a lot of weight.
Additionally, metal frames make efficient use of space. You’ll have plenty of interior cavity leftover to access your built-in grill or store items.
Now, metal frames have their fair share of weak points.
Moisture is kryptonite to metal frames. If you live in a humid area, close to the ocean, or in a freeze/thaw climate… Be aware of this.
If moisture gets to your metal frames… Corrosion and rust can break them down over time. Eventually, this will compromise the structural integrity of your outdoor kitchen. That’s not a simple repair!
Corrosion-resistant and weather-resistant metal will be your best bet. But if you live in a cold climate like New England… This will only give you a little more time. It’s not a permanent solution.
If you’re planning to go DIY… Just note that working with steel frames can be quite a challenge. Steel work is not for beginners, and likely not worth the hassle!
Wood Frames
More than likely, your house is framed with wood. So you’re probably thinking… Why not do the same for my outdoor kitchen?
It’s affordable relative to other materials… And it’s easier to work with. Where’s the problem?
There are some benefits of wood framing, yes. But there’s several reasons why wood is an absolute no-go for your outdoor kitchen.
The main issue here is safety. Wood is a combustible material… Which becomes a serious safety hazard when paired with a piping hot, built-in grill. Even investing in an insulated jacket may not be enough to shield you from the dangers.
Secondly, wood readily degrades outdoors. It’s extremely susceptible to rotting, warping, and swelling. And of course, if termites make your outdoor kitchen a home… It’s game over.
Ultimately, wood is not a suitable material for an outdoor kitchen project.
Instead, you may consider…
Concrete Block
Also known as CMU (concrete masonry unit), this method is becoming less popular. However, it still deserves mention.
This method involves taking concrete blocks to form the structural frame of your outdoor kitchen… Then a cladding material is applied to the exterior for your desired finish.
We all know the traditional characteristics of concrete. It’s dense, heavy, and strong. Therefore, concrete blocks hold up well in virtually any climate. You don’t have to worry about corrosion or the concrete degrading.
It’s also a non-combustible material… Making it a safer choice than wood!
Despite this, there’s some downsides. Installing CMU involves a high skill cap. More often than not, you’ll have to hire a mason… Which is expensive. (Not to mention, hard to find!)
Another disadvantage? Building an outdoor kitchen with concrete blocks is highly invasive. It involves heavy machinery, takes a long time… And can lead to a huge mess for you to clean up at the end. Not fun!
Plus, cement block outdoor kitchens have a lack of interior island space. While metal frames provide ample cavity space for access… Concrete blocks are the opposite.
Not only will this lack of interior cavity space make it a pain to access the inside of your BBQ island… It can also pose some safety hazards by restricting airflow within your island structure.
And if airflow is restricted, it can result in hot air buildup… Which in turn may cause your built-in grill to overheat and spark a flame. (This is why outdoor kitchen vents are crucial… No matter the frame material you use!)
Lastly, if you’re planning to install concrete on a patio or deck… You’ll likely need to add structural footings or additional supports. The extra support is often needed for the extra weight of concrete, otherwise, the structure your kitchen is on could be compromised over time.
And of course, a hefty grill island causing your deck to collapse is another safety hazard you don’t want to mess around with… So be 100% certain not to skip this step.
How about something a little less heavy?
Plastic Outdoor Kitchen Cabinetry
As more ready-made outdoor kitchens become available… We’re seeing plastic outdoor kitchen cabinet materials pop up more often.
Namely… PVC, marine-grade HDPE, polymer, high density polyethylene, and other highly durable plastics are being used more often for modular and prefab islands.
Unlike the other “traditional” structural options we’ve discussed… Plastic outdoor kitchen cabinets don’t require a cladding material or finish.
Instead, the finish is usually integrated directly into the plastic structure. (NatureKast outdoor kitchens are an example of this.)
If you play your cards right, plastic outdoor kitchen structures can be highly durable and long-lasting.
Plastic is immune to weather-related damages like rust, corrosion, or rot.
Additionally, plastic outdoor kitchens are low maintenance and easy to keep clean.
Another benefit is convenience. Since plastic is a lightweight material, this type of outdoor kitchen structure will be easy to set up… And won’t require any structural footings.
But as with the other options, there are some pesky downsides.
Like wood… Plastic is a combustible material. When exposed to high temperatures… It can warp, melt, and even catch fire.
As with wood frames… Insulated jackets offer a workaround to this serious safety hazard. So, if you’re buying ready-made plastic outdoor kitchen cabinets, be sure to confirm that insulated jackets are included to avoid risk.
Also note that plastic outdoor kitchens tend to be less customizable than other methods… As they’re typically only available as prefab BBQ islands. While there are some brands that offer customization… It’s not super common.
So let’s wrap up with one more material that’s a newcomer to the scene.
Concrete Panels
More and more… You’ll be hearing about outdoor kitchens made from concrete panels.
At RTA, it’s our bread and butter. We engineered this method!
After taking a step back to assess all the pitfalls with traditional grill island materials… We created a solution that takes all the good, and leaves out the bad.
So, what is it?
Essentially, we’ve remixed the concrete block outdoor kitchen. Rather than having to hire a mason to lug around heavy, concrete blocks and apply a finish… We’ve bypassed the entire labor intensive portion of the process.
For a simple, linear grill island… You take 4 concrete panels, bolt them together, place the countertop, and slide in appliances. It’s that easy. (It only takes a couple hours!)
We’ve also fully integrated the finish into the panel itself… Meaning you don’t have to deal with finishing work, or layers that could crumble apart after a harsh winter.
And as mentioned earlier, concrete is a non-combustible material.
But that’s not the only way concrete panels take a “safety first” approach.
This frameless system allows for a wide-open interior cavity… Preventing heat from building up. Additionally, there’s ample island ventilation to flush out heat and gas.
Another benefit?
Well, it’s concrete! This weatherproof and durable material won’t rust, corrode, warp, swell, rot… No matter what climate you live in.
Concrete panels are engineered for the outdoors. Which means you’ll be enjoying your BBQ island worry-free for years to come.
That’s a wrap on outdoor kitchen structure materials. Now, there’s another area we need to address…
Curious about Concrete Panel Outdoor Kitchens?
What’s the Deal with Cement Board for Outdoor Kitchen?
Once you’ve got your structure down… You may need a surface to attach the cladding material to (Unless you’re opting for plastic or concrete panels, that is).
For frames constructed out of metal or wood… The material of choice is cement board.
Cement board was originally intended for interior use, such as bathroom tiling.
It’s made from cement, water, silica, limestone flour, and reinforcing fibers. There are no organic materials present, which makes it less likely to rot.
Cement board for outdoor use is classified as water resistant. However, it’s actually a bit more nuanced than that. It can sustain water damage in freeze/thaw, high humidity, or coastal weather conditions.
That said, many cement board brands don’t recommend ground contact with their product… Which raises some concern about how water resistant they truly are.
Anyway, cement board is meant to serve two purposes in an outdoor kitchen. First, as a protective barrier over metal or wood framing. Secondly, it provides the bonding surface for your cladding material.
A quick word about cement blocks! Since this is already a masonry surface… Cement board is not needed to attach a finish. Simply apply the cladding material directly to the concrete block.
Further, some cladding materials require an extra step. Some need a scratch coat to properly bond the finish. In this case… Cement board or concrete block becomes the surface you apply the scratch coat to.
Now, let’s learn about finishing materials.
Popular Cladding Material Options
Next, it’s time to finish your outdoor cabinetry.
But with what?
There’s a ton of different material options out there.
Here, we’ll share some of the most popular outdoor kitchen cladding materials.
Stucco
Next, it’s time to finish your outdoor cabinetry.
But with what?
There’s a ton of different material options out there.
Here, we’ll share some of the most popular outdoor kitchen cladding materials. For the budget-conscious, stucco may be your best bet. It’s an inexpensive outdoor kitchen siding option that has become a popular choice in recent years.
Stucco is super popular in areas like Florida and California. You’ll often see homes finished with stucco there, as well.
The downside?
It depends on your climate. Stucco is not durable in freeze/thaw or high moisture conditions. It’s susceptible to cracking and flaking off.
Tile
Tile is a favorite with DIYers for ease of installation. There’s also a large variety of colors and patterns to choose from.
However, tile is fragile. It’s especially vulnerable in areas that experience frequent inclement weather.
Large temperature fluctuations and high moisture climates are pernicious to tile finishes.
Imagine your tiles popping off left and right… It can quickly become a revolving door of constant repairs. Talk about annoying.
Tile also has added maintenance. It can be difficult to keep the grout clean… So tiles require consistent upkeep if you want them to remain looking new.
Stone or Brick
Stone and brick are traditional masonry materials that lend a rustic look to your outdoor kitchen. They’re natural, sturdy, and have a sense of permanence.
However, real natural stone veneer can be quite pricey. Over the years, alternatives have been developed to get around the price hurdle. Manufactured veneer stone is a great way to get the look and feel of real stone… Without the sticker shock.
At the same time… There’s a disadvantage to a brick or stone veneer outdoor kitchen. Remember how tiles are prone to popping off? This situation is also the case with brick and stone veneer.
So if you’re hoping to avoid the pitfalls of tile… Know you run the same risk.
A Quick Note on Mortar
If you decide on a brick or stone veneer… You’ll be using mortar to attach everything.
We know, we’ve already touched on this! But it’s an important concept to understand.
Where the mortar and cladding material meet is an area of weakness in the construction of your outdoor kitchen. This is one of five materials that could fail in this “lick and stick” construction process.
The frame, the cement board, the screws attaching the cement board, the veneer… And the mortar, too.
While this multi-layered construction process may seem great… There’s always a risk of the materials delaminating (falling off).
A construction that doesn’t involve multiple layers stands zero chance of delamination… Which is a huge reason why concrete panels are so powerful.
But before we get too off-track… Let’s cover countertop materials.
Countertop Materials
To “top” off your outdoor kitchen… You’re going to need countertops.
Like cladding materials, there are a ton of outdoor countertop options out there. Here, we’ll just outline a few examples.
Tile
No doubt, tile’s got great versatility. It can be used as an island finish and for your countertops.
For countertops, it’s probably your most cost-effective option.
However, it comes with the same set of challenges as a tile island finish.
For one, it lacks flexural strength and is brittle. Therefore, it’s susceptible to cracking and falling apart.
As mentioned previously, it’s also difficult to keep clean. Cleanliness with countertops is especially important! You’ll be using it for food preparation and serving, after all. If bacteria and grime get into the grout… You’re on a fast track to a non-hygienic surface. Yuck.
Bluestone or Limestone
Limestone and bluestone are great options for those after a natural look. They fit right in with the outdoor environment.
However, limestone and bluestone are rather porous. Therefore, they require regular sealing and maintenance to prevent staining.
As with any natural material… Limestone and bluestone run the risk of cracking or splitting. They are unable to be internally reinforced. So there is a chance of them cracking with temperature fluctuations and ground movement.
Concrete
While man made… Concrete countertops also provide a natural look and feel to your outdoor kitchen.
Concrete countertops also avoid some of the pitfalls of natural materials. They can be structurally reinforced. Therefore, concrete can better handle temperature changes and ground movement.
On the other hand… Concrete is a softer and more porous material. As a result, it’s more susceptible to staining and scratching. Concrete will also require maintenance and re-sealing over time.
Granite
Granite is excellent for sleek and contemporary outdoor kitchen ideas.
It’s a dense, hard material that’s easy to maintain. With the right sealer, outdoor kitchen granite countertops are stain-resistant as well.
You’ll want to note that dark granite for outdoor kitchen countertops gets hot in the sun. If your outdoor kitchen won’t be under cover or out of direct sunlight… You may want to consider a lighter color to reduce the effect.
Made to Last the Long Haul
Soapstone
Soapstone brings a beautiful, modern aesthetic to your outdoor living space.
It’s a nonporous material that doesn’t require resealing. Soapstone is also more resistant to staining than granite.
While more resistant to staining, soapstone is a softer material. So, it will be more prone to scratches, dings, and chips.
Quartz
Quartz is another beautiful material for countertops!
Like granite, it’s a dense and hard material. So quartz is resistant to staining and scratching.
However, quartz doesn’t handle sunlight well. Over time, it will yellow.
Quartz also has a tough time with humidity and moisture. All in all, it’s not the best material for outdoor use, and is better suited for your indoor kitchen.
Stainless Steel
Unfortunately, there’s not much to write home about with stainless steel outdoor kitchen countertops.
Yes, they are easy to clean and maintain! However, they absorb heat like nobody’s business. You’re better off keeping stainless steel limited to your outdoor kitchen appliances.
What Are The Best Materials for Outdoor Kitchen?
Alright. We’ve gone over a lot of outdoor kitchen materials. The question becomes… Which ones are the best?
As always, it depends on your situation. More specifically, it depends on your climate.
When deciding on the best material for outdoor kitchens… You have to consider what type of weather your outdoor kitchen design will have to withstand.
Take areas like southern California, for example. The weather is pretty ideal most of the time. Therefore, you can get away with a less robust structure, such as a metal frame with stucco. There’s much less likelihood that the structure will become compromised over time.
Metal frames are a bit riskier in high moisture areas like Texas and Florida, though. Moisture can easily get into the structure and corrode the frame over time. If you decide on a metal frame in a humid climate… Be sure the materials are properly treated to fend off moisture.
Third, let’s consider northern climates. Essentially, anywhere that experiences a freeze/thaw cycle. You’ll want to avoid metal frames completely here… The extreme weather will quickly destroy the materials.
Concrete blocks, panels, or plastic outdoor kitchen structures are better for northern climates. These methods are better suited to handle the elements.
No matter where you are… There are some materials we do recommend against.
First, wooden outdoor kitchen frames. Though insulated grill jackets may curb safety concerns… These’ll still rot, warp, and swell over time. In our eyes, it’s just not worth it.
We’d also rule out tile for cladding and countertops. Not only are tile countertops unhygienic… But it’s also incredibly difficult to keep the grout clean.
Stainless steel countertops are also out. These get scorching hot in the sun, which makes your island uncomfortable to use.
Finally, quartz countertops can be a bit iffy in cold climates. Quartz yellows over time and does not have the best flexural strength. So, a freeze/thaw cycle can leave them more prone to damage.
Aside from these… The outdoor kitchen materials you choose really come down to personal preference!
But all that said, allow us to float another idea by you…
RTA Outdoor Kitchen Materials: A New (and Better) Solution
At this point, you should have a great understanding of materials used in an outdoor kitchen. Perhaps you even have an idea of what you want to use!
Before we let you go… We wanted to circle back on those concrete panels we mentioned earlier.
Our panels are made with high performance concrete that’s rated for 100 years. (A century!)
Which means… Our outdoor kitchens are built for longevity, from the ground up.
But what about the rest?
We offer that same high performance concrete for our countertops… Which are further reinforced with composite rebar and microfibers for ultimate durability.
If you’re not in love with the concrete countertop look, we do also offer luxurious granite countertops as well. These stain-resistant and hardy countertops are the absolute best that nature provides…. So it’s no question they’ll last outside for years to come.
We don’t skimp on appliance materials, either.
For our outdoor kitchen appliances… We’ve partnered with Coyote Outdoor Living. Their entire product line features high-quality, complete 304 stainless steel construction… Which is the gold standard for outdoor appliances.
What else is there to say? RTA outdoor kitchens are top notch, from top to bottom.
So if you want to design your project with the best outdoor kitchen materials… Why not start now?
Give our free online design tool a whirl… No strings attached.
We’ve helped countless homeowners with their outdoor kitchen projects… And we’d be honored to assist you too.
