There’s something satisfying about cooking food on a BBQ you built with your own two hands. I get asked about this a lot, and honestly, one of the most common questions I hear is: “Andy, do I really need cement to build a brick BBQ?”
The answer is no — not for the kind of backyard brick BBQ most people actually want to build.
You can build a solid, functional brick BBQ using what’s called a dry-stack method, where bricks are carefully positioned and interlocked without any mortar holding them together. I’ve helped friends build a few of these over the years, and when you get the fundamentals right — good foundation, the right bricks, sensible height — they work great for years of weekend cookouts.
I’ll be straight with you up front: this method is best suited for a simple, low-profile BBQ. If you’re picturing a tall brick chimney-style smoker with a flue, that’s a mortar-and-engineering job, not a weekend project. But for a solid grilling station you can build in a day or two? Dry-stack is the way to go.
Here’s what we’re covering:
- Materials and tools you’ll need
- Choosing the right location
- Preparing a foundation that does the job mortar normally would
- Step-by-step build instructions
- How to keep it stable, ventilated, and weather-ready
- Mistakes to avoid
- Product recommendations that’ll save you a headache
Let’s get into it.
Can You Build a Brick BBQ Without Cement?
Yes — and it’s more common than people think. There are two basic approaches to brick BBQ construction:
Mortar/cement-built BBQs use mortar between every brick joint, permanently bonding the structure together. It’s stronger and more permanent, but it’s also messier, slower, and a lot less forgiving if you change your mind about the design halfway through.
Dry-stack brick BBQs rely on the weight of the bricks, careful stacking, and interlocking patterns to hold everything in place. No mixing, no curing time, no mess.
So how do the bricks actually stay put without mortar? It comes down to gravity and friction. Each course of bricks sits directly on the one below it, with the joints staggered (like a brick wall pattern) so no single brick is doing all the work of holding a section together. Done right, a low, wide dry-stack structure is surprisingly stable.
Why go cement-free:
- Easier for a first-time builder
- No mixing or curing mortar
- You can modify or take it apart later
- Fewer materials, lower cost
The trade-offs:
- Less permanent than a mortared structure
- Every brick placement matters more
- Stability depends heavily on your foundation and design
If you want something tall, permanent, or built into a larger outdoor kitchen, mortar is genuinely the better call. But for a straightforward backyard BBQ pit, I’d tell a friend to skip the cement.
Safety callout: A dry-stack BBQ needs a stable, dead-level base, and you should never build it tall enough that the upper walls become top-heavy or unsupported. I’d keep it to 3–4 courses of brick, max, for anything without mortar. Go higher than that and you’re asking for trouble.
What You Need to Build a Brick BBQ Without Cement
Materials
- Firebricks for anywhere directly exposed to high heat — this isn’t optional, and I’ll explain why below
- Suitable regular bricks for outer, non-firebox sections
- A cooking grate
- A charcoal/fire grate
- Gravel or another compactable base material
- Pavers or another noncombustible foundation material
Tools
- Tape measure
- Spirit level (get a good one — you’ll use it constantly)
- Shovel
- Rubber mallet
- String and stakes
- Brick chisel
- Work gloves
- Safety glasses
Choosing the Right Bricks
This is where a lot of DIYers cut corners, and it’s the one place I’d tell you not to.
Ordinary decorative or “common” bricks are not made to handle direct, sustained fire exposure. They can crack, spall, or in worse cases, pop under thermal stress. That’s not a “might happen” — I’ve seen it happen to a buddy’s first backyard build, and it’s not a fun surprise mid-cookout.
Firebrick vs. standard brick: Firebrick (also called refractory brick) is manufactured specifically to handle extreme, repeated heat cycling without breaking down. It belongs anywhere the fire and hot coals actually sit — the firebox floor and the walls immediately surrounding it. Standard bricks can be fine for the outer, cooler sections of the structure, but keep them out of the firebox itself.
A couple more things to check before you buy:
- Skip painted, chemically treated, or unknown reclaimed bricks anywhere near the fire — you don’t know what’s in them, and heating unknown coatings isn’t something you want happening next to your food.
- Inspect every brick for cracks or chips before you build. A damaged brick is a weak point, and weak points are exactly where dry-stack structures fail.
If you’re shopping around, look for dense fire-clay or refractory split firebricks rated to handle heat well over 2,000°F without cracking — that rating gives you real margin, because your fire will never actually get that hot, but the brick won’t be the thing that fails.
Choose the Best Location for Your Brick BBQ
Before you touch a single brick, pick your spot. This matters more than people expect.
Look for:
- Flat, stable ground
- A safe distance from your house
- Clear of wooden fences, overhanging branches, and anything else combustible
- Good ventilation — you don’t want smoke trapped against a wall
- Enough space around it to comfortably work and serve food
- Compliance with your local fire codes and any HOA or municipal restrictions
Important: Never build a BBQ underneath a roof, under low-hanging combustible material, or in any enclosed space. This one’s non-negotiable — I don’t care how good your ventilation plan is.
Prepare the Foundation for the Brick BBQ
Here’s the thing nobody tells beginners enough: when you skip the mortar, your foundation has to do the work mortar would normally do. Mortar forgives a slightly uneven brick here and there. Dry-stacking doesn’t. Your foundation is the single biggest factor in whether this thing stands up straight for years or starts leaning after one rainy season.
Clear and Level the Ground
Remove grass, roots, and loose soil down to solid ground, and create a level footprint slightly larger than your planned BBQ.
Add a Compactable Base
Add a layer of gravel or another compactable base material, then compact it thoroughly — don’t skip this step or rush it. Check level in multiple directions, not just front-to-back.
Create a Noncombustible Surface
On top of your compacted base, use suitable pavers or a properly prepared masonry surface. The whole footprint needs to be stable — not just the middle.
A crushed aggregate or paver base, tamped down properly, gives you a self-draining, compact surface that resists ground shifting over time. This is one place where spending a little extra effort (or picking up a proper tamper instead of stomping it down by foot) really pays off.
How to Build a Brick BBQ Without Cement: Step by Step
This is the core of the project, so take your time here.
Step 1 — Mark Out the BBQ Footprint (and Size It to Your Grate First)
Determine your desired width and depth, then lay out the first course loosely — without fixing anything permanently — so you can check the fit.
Here’s a mistake I see constantly: people build the entire wall structure first, then go buy a cooking grate, only to find out it doesn’t fit the opening they built. Grates come in standard sizes, and if your interior width is even an inch off, you’re stuck either forcing an ill-fitting grate or rebuilding a course.
Buy your cooking grate and charcoal grate before you lay a single brick. Measure them, and let those measurements set your interior footprint — not the other way around. This one adjustment will save you more frustration than almost anything else in this guide.
Step 2 — Dry-Lay the First Course of Bricks
Position bricks around the perimeter, keeping the front open for charcoal access. Check every single brick with a spirit level — not just the corners.
Build in your airflow now. One thing a lot of dry-stack guides skip: your first course is also where you control airflow. Leave small, deliberate gaps between a few bricks near the bottom of the front or sides — these act as a natural air intake, feeding oxygen to the fire from below. Without some form of bottom ventilation, your fire will struggle to get proper draft and you’ll be fighting it all cookout. This also doubles as your ash cleanout access — a small gap at the base makes it much easier to sweep ash out between uses instead of having to dismantle bricks to clean it.
Pro tip from Andy: Spend extra time getting this first course perfectly level. Every error here compounds as the wall goes up — a quarter-inch of lean at the bottom can turn into a real problem four courses later.
Step 3 — Build the Second Course
Stagger the joints so no vertical seam lines up between courses — this is what gives a dry-stack wall its actual strength. Keep the walls aligned, check level and plumb frequently, and avoid leaving any section unsupported.
Step 4 — Continue Building the Walls
Add courses gradually, keeping your cooking chamber dimensions consistent. Recheck constantly:
- Level
- Wall alignment
- Opening width
- Overall stability
Remember — 3 to 4 courses is your practical ceiling for a cement-free build. Beyond that, the structure gets top-heavy and the margin for error shrinks fast.
Step 5 — Create Supports for the Cooking Grate
Your grate needs somewhere solid to rest. A few options:
- Brick ledges built into the wall as you go
- Purpose-positioned support bricks that jut slightly inward
- Metal supports rated for high heat
If your design allows for it, build in more than one grate height — it gives you flexibility for direct vs. indirect heat later, which you’ll appreciate the first time you’re cooking something that needs a gentler touch.
Heat-rated stainless steel L-brackets or heavy-duty angle iron are worth considering here instead of relying purely on protruding bricks — they give you adjustable grate heights without weakening your brick coursing, and they’re not expensive.
Step 6 — Add the Charcoal/Fire Grate
Keep the charcoal elevated above the bottom surface — airflow underneath the coals is what keeps your fire burning clean and hot instead of smoldering. Make sure the fire grate itself is properly and evenly supported so it doesn’t tip when loaded with charcoal.
Step 7 — Add the Cooking Grate
Position it so it sits securely and can’t easily slide or tip when you’re flipping burgers or shifting a brisket around. Double-check there’s enough clearance above the charcoal for the kind of cooking you plan to do most.
Step 8 — Inspect the Entire Structure
Before you light anything:
- Check for loose bricks
- Check wall stability by hand — give it a gentle push test
- Check that grate supports are solid
- Confirm the whole structure is level
- Clear combustible material from the surrounding area
Mind Thermal Expansion Before Your First Big Cook
This one surprises people. Bricks expand slightly when they heat up — even firebrick. In a mortared BBQ, the mortar joints absorb some of that movement. In a dry-stack build, there’s nothing between the bricks to absorb it, so if everything is packed too tightly with zero room to move, the expansion can push bricks out of alignment or, in bad cases, crack them.
The fix is simple: don’t force bricks together edge-to-edge with zero gap, and don’t overload the firebox with a massive fire the first time you use it. Start small (more on that below), let the structure “learn” how it handles heat, and keep an eye on it during the first few cooks. If you notice a brick shift slightly after heating, that’s normal settling — not a failure — as long as it’s minor and the structure stays solid.
Simple Brick BBQ Design Without Cement
If you want something to visualize before you start, here’s a solid, beginner-friendly layout:
- Two short brick side walls
- A rear brick wall
- Open front for charcoal access
- Fire grate near the bottom, elevated with airflow gaps beneath it
- Cooking grate positioned above
- Multiple brick-supported grate heights if your design allows
Why short and wide beats tall: A tall dry-stack structure has a higher center of gravity and more courses that can potentially shift. A short, wide design spreads the weight more evenly, keeps your center of gravity low, and is just plain more stable without mortar holding it together. It’s less dramatic-looking than a tall brick chimney, sure — but it’s the design that’ll actually still be standing next summer.
How Many Bricks Do You Need to Build a Brick BBQ?
There’s no single universal number here — it depends on your specific design. But you can estimate it yourself pretty easily.
You’ll need to know:
- BBQ width
- BBQ depth
- Wall height (number of courses)
- Brick face dimensions
- Whether you’re building an open-front design or a full four-wall structure
How to Calculate the Number of Bricks
Work out the total face area of each wall (length × height), divide by the face area of a single brick, and add roughly 10% extra to account for staggered joints, cuts, and the odd broken brick.
Example calculation: Say you’re building a simple open-front BBQ, 24 inches wide and 18 inches deep, with walls 12 inches tall (about 4 courses using standard 3-inch-tall bricks). That’s two side walls (18″ x 12″) and one rear wall (24″ x 12″), plus a front section shorter to leave your opening. Roughly:
- Two side walls: 18 x 12 = 216 sq in each = 432 sq in
- Rear wall: 24 x 12 = 288 sq in
- Total: roughly 720 sq in of wall face
A standard brick face is about 32 sq in (8″ x 4″). That’s roughly 22–23 bricks for the structural walls, before adding extra for the base course, grate ledges, and breakage allowance. I’d round up to 30 bricks to be safe and not end up short mid-build.
How to Make a Cement-Free Brick BBQ Stable
- Start with a genuinely level foundation — this is 80% of the battle
- Keep the walls low (3–4 courses)
- Use proper overlap/interlocking patterns between courses
- Avoid long unsupported spans of brick
- Make sure every brick sits completely flat before moving to the next
- Never use a cracked brick, even “just for now”
- Don’t build on ground prone to shifting or heaving
- Inspect the structure regularly, especially after the first few cooks
What to Do if a Brick Moves
- Extinguish the fire completely and let everything cool
- Remove and reposition the loose brick
- Recheck the surrounding courses for any additional movement
- Don’t keep cooking on an unstable wall — fix it first, cook after
Can You Use Regular Bricks for a BBQ?
Sometimes, but not everywhere. Not all bricks are made to handle direct fire exposure — regular building bricks can crack or degrade with repeated intense heat cycling. Firebrick is the safer, more reliable choice for the firebox and any high-heat zones.
Some standard masonry bricks may be suitable for the cooler, outer sections of the structure, depending on their specification — but don’t assume an old or reclaimed brick is safe just because it’s technically masonry. When in doubt, keep it out of the firebox.
Brick BBQ Without Cement vs. Mortar-Built BBQ
| Feature | Dry-Stack Brick BBQ | Mortar-Built BBQ |
|---|---|---|
| Cement/mortar | No | Yes |
| Difficulty | Easier | More involved |
| Construction time | Faster | Longer |
| Can dismantle | Yes | Difficult |
| Permanence | Lower | Higher |
| Stability | Depends heavily on design | Generally higher |
| Best for | Simple DIY BBQ | Permanent structures |
Common Mistakes When Building a Brick BBQ Without Cement
- Building on uneven ground
- Making the walls too tall
- Using unsuitable bricks in the firebox
- Skipping the foundation step
- Not checking the first course carefully enough
- Creating unsupported brick spans
- Setting the cooking grate too close to the charcoal
- Building too close to combustible materials
- Using damaged or cracked bricks
- Lighting a large fire immediately after finishing construction
- Buying the grate after building the walls
- Packing bricks too tight with no room for heat expansion
- Leaving it uncovered through winter and freeze-thaw cycles
How to Use Your New Brick BBQ Safely
- Start with a small test fire, not a full load of charcoal
- Inspect the structure after it’s had a chance to heat and cool
- Never leave the BBQ unattended while lit
- Keep kids and pets well clear
- Keep a suitable fire-extinguishing method nearby
- Don’t fire it up during unsafe weather or local fire restrictions
- Let the structure cool completely before moving or inspecting bricks
How to Maintain a Dry-Stack Brick BBQ
- Remove ash regularly — don’t let it build up and block airflow
- Inspect bricks for cracking after heavy use
- Check grate supports for wear
- Look for any shifting bricks and reset them promptly
- Keep the foundation area clear of debris
- Replace any damaged components before your next cook
- Re-level or rebuild sections when necessary
Winterizing Your Dry-Stack Brick BBQ
This part gets skipped constantly, and it shouldn’t. Because there’s no mortar sealing the joints, dry-stacked bricks can absorb rainwater more readily than a mortared structure. When temperatures drop below freezing, that absorbed water expands as it freezes — and that expansion can crack bricks or push your gravel foundation out of level over a winter.
A few things that genuinely help:
- Cover the BBQ with a heavy-duty, waterproof cover during wet or freezing months
- Check that your foundation drains well and doesn’t pool water against the base
- Sweep out ash and debris before covering it up for the season
- In spring, re-check level and inspect for any freeze damage before your first cook
A decent fire pit or BBQ cover isn’t expensive, and it’s genuinely one of the cheapest ways to protect the time you put into building this thing.
FAQs About Building a Brick BBQ Without Cement
Can you build a BBQ with bricks without cement? Yes. Using a dry-stack method with a solid, level foundation and proper brick staggering, you can build a stable, functional BBQ without any mortar.
How do you hold bricks together without mortar? Through careful stacking, staggered joints, and the weight of the bricks themselves. A wide, low design with a solid foundation holds together through friction and gravity rather than adhesive.
What bricks are best for a homemade BBQ? Firebrick for the firebox and any area exposed to direct flame. Standard bricks may work for outer, cooler sections depending on their rating.
Can regular bricks withstand BBQ heat? Not reliably in the firebox itself. They can crack or degrade under repeated intense heat. Firebrick is built to handle it.
How many bricks do I need to build a BBQ? It depends on your design, but a small open-front BBQ typically needs somewhere around 25–35 bricks once you account for the base, walls, and breakage allowance.
Can I build a brick BBQ directly on grass? No — remove the grass, roots, and loose soil, then build a proper compacted, noncombustible foundation first.
Is a dry-stack brick BBQ safe? Yes, when built correctly — solid foundation, appropriate bricks, low wall height, and regular inspection. Skipping any of those steps is where safety issues start.
How high should a brick BBQ be? For a cement-free build, I’d keep it to roughly 3–4 courses of brick for the firebox walls. Taller than that starts pushing the limits of what dry-stacking can safely support.
Can you build a brick BBQ without a foundation? You can try, but I wouldn’t recommend it. The foundation is what replaces the stability mortar would normally provide — skipping it is asking for a wobbly, uneven structure.
Can you dismantle a brick BBQ without cement? Yes, that’s one of the real advantages of this method. Since nothing is permanently bonded, you can take it apart or reposition it if needed.
Do you need firebricks for a brick BBQ? For the firebox and any area exposed to direct fire, yes. It’s the one material choice I wouldn’t compromise on.
Final Thoughts: Is a Cement-Free Brick BBQ Worth Building?
If you want a straightforward weekend project that doesn’t require mixing mortar or committing to something permanent, a dry-stack brick BBQ is absolutely worth building. It’s beginner-friendly, forgiving if you want to make changes later, and genuinely capable of standing up to years of backyard cookouts — as long as you respect the fundamentals.
The three things that matter more here than in a mortared build: your foundation, your brick selection, and keeping the walls low. Get those right and everything else falls into place.
If you’re picturing something taller, more permanent, or built into a bigger outdoor kitchen setup, that’s a job for a properly engineered mortar-built design instead — don’t try to stretch dry-stacking past what it’s meant for.
Either way, take your time on the foundation, buy your grates before you build your walls, and don’t rush the first few cooks. That’s really the whole game.
Build Your BBQ With Confidence
FREE BBQ BUILDING CHECKLIST Download our printable brick BBQ materials and construction checklist so you can gather everything you need — firebricks, grates, foundation materials, and tools — before you lay the first brick.