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.
No — you don’t need cement. A dry-stack brick BBQ built on a dead-level foundation, with staggered joints and walls kept to 3–4 courses, is stable, safe, and fully functional without a single drop of mortar. This guide shows you exactly how to do it.
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:
The trade-offs:
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.
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.
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:
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.
Before you touch a single brick, pick your spot. This matters more than people expect.
Look for:
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.
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.
Remove grass, roots, and loose soil down to solid ground, and create a level footprint slightly larger than your planned BBQ.
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.
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.
This is the core of the project, so take your time here.
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.
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.
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.
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.
Add courses gradually, keeping your cooking chamber dimensions consistent. Recheck constantly:
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.
Your grate needs somewhere solid to rest. A few options:
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.
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.
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.
Before you light anything:
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.
If you want something to visualize before you start, here’s a solid, beginner-friendly layout:
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.
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:
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:
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.
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.
| 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 |
Dry-stack vs. mortar at a glance — pick the approach that matches your project, not your ambition.
You want a simple, low grilling station you can finish in a weekend, you might relocate or redesign it later, and this is your first crack at a masonry-style build.
You want a tall chimney-style smoker, a permanent fixture for a bigger outdoor kitchen, or you’re comfortable mixing mortar, curing time, and a multi-day project.
That first small test fire is where a chimney starter earns its keep — portion out a modest load of fuel, light it clean, and watch how your new structure handles the heat. Still choosing your fuel? Start with our guide to the best lump charcoal, and if you don’t own a starter yet, our charcoal chimney starter buying guide has you covered.
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:
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.
You don’t need much gear for this project — that’s part of the appeal. But these are the five things I either used on my own dry-stack builds or handed to friends after watching them struggle without. None of them are expensive, and all of them earn their spot. One thing I won’t link you to: firebricks. Buy those locally so you can inspect every brick for cracks before it goes anywhere near your firebox — exactly like I told you above.
Your first fire on a fresh build should be small and controlled, and a chimney starter is the cleanest way to get there. No lighter-fluid flavor, no fighting a stubborn coal bed — just measure out a modest load, light it, and pour when it’s ashed over.
The whole point of building your own BBQ is cooking on it — and guessing internal temps is how good meat goes bad. This is the budget instant-read I keep in my apron pocket: fast, accurate, and cheap enough to abuse.
Rearranging a hot fire grate, nudging a shifted brick after a cook, pulling a chimney starter off the grate — bare hands and long tools only get you so far. A properly rated pair of heat-resistant gloves ends those awkward hot-potato moments for good.
Bare masonry and a new cooking grate will shed debris during the first few cooks. A bristle-free brush keeps the grate clean without the risk of loose bristles ending up in your food.
This is the one that protects everything else. Dry-stacked joints drink rainwater, and one hard winter of freeze-thaw can undo a level foundation. A heavy, waterproof cover is the cheapest insurance you’ll ever buy for a structure you made with your own hands.
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.
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.
Firebrick for the firebox and any area exposed to direct flame. Standard bricks may work for outer, cooler sections depending on their rating.
Not reliably in the firebox itself. They can crack or degrade under repeated intense heat. Firebrick is built to handle it.
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.
No — remove the grass, roots, and loose soil, then build a proper compacted, noncombustible foundation first.
Yes, when built correctly — solid foundation, appropriate bricks, low wall height, and regular inspection. Skipping any of those steps is where safety issues start.
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.
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.
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.
For the firebox and any area exposed to direct fire, yes. It’s the one material choice I wouldn’t compromise on.
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.
Line up your firebricks, grates, and first-fire gear before you start stacking — it’s the difference between a smooth weekend build and a hardware-store run halfway through.
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.
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