A great 3 burner gas grill with side burner gives you the flexibility to grill mains and handle sauces, sides, or searing at the same time. For busy backyard cooks, that extra burner can make weeknight meals and weekend cookouts much easier.
In this roundup, we focused on the models that offer the best balance of cooking space, heat control, build quality, and overall value for different types of buyers.
Best 9 3 Burner Gas Grill with Side Burner Picks for 2026
Best for Extra Searing Power
Monument Mesa325 3+1 Stainless Steel Grill
- 570 sq. in. total cooking area for larger meals
- 48,000 BTU output with a handy side burner
- Viewing lid, knob lights, and fuel gauge improve control
Best For: Backyard cooks who want a roomy, high-heat grill with side-burner versatility.
Best for Searing
Victory 3-Burner Propane Grill
- Infrared side burner for high-heat finishing
- Three burners reach over 700°F
- All-stainless build with lifetime warranty
Best For: Grillers who want serious searing power and a durable stainless steel build.
Best Budget
Weber Genesis E-325 3-Burner Gas Grill
- Even heat from PureBlu burners
- Large sear zone for steaks and burgers
- Easy-clean grease management system
Best For: Grillers who prioritize searing power and reliable heat control.
Best for Small Family Cookouts
Feasto 2-Burner Propane Grill with Side Tables
- All-porcelain-enamel construction resists heat damage and wear.
- 26,500 BTUs and flat burners offer steady, broad flame coverage.
- Side tables and a warming rack make prep and staging easier.
Best For: Small families who want a durable, space-saving propane grill for everyday cookouts.
Best for Even Heat
Weber Genesis S-335 3-Burner Gas Grill
- Consistent heat from PureBlu burners
- Handy side burner for sauces and sides
- Large sear zone and durable stainless grates
Best For: Home cooks who want reliable heat control and a versatile propane grill for frequent backyard meals.
Best for Small Patios
- 22,000 BTUs with stainless steel main burners
- 360 sq. in. total cooking space plus warming rack
- Foldable side shelves, tool hooks, and locking wheels
Best For: Patio and backyard cooks who want a compact propane grill with a side burner and space-saving design.
Best for Comfort
Weber Genesis E-335 3-Burner Natural Gas Grill
- Even heat from PureBlu burners
- Extra-large sear zone for steaks and burgers
- Side burner for sauces and sides
Best For: Home cooks who want reliable heat, a strong sear, and a natural gas setup.
Best for Fast High-Heat Grilling
Monument Mesa II 410FBZ 4-Burner Grill
- Advanced Broil Zone for faster searing and better heat control
- Reaches 500°F in about 5 minutes for quick preheating
- 525 sq. inches of cooking space with foldable side shelves
Best For: Cooks who want quick startup, strong searing power, and extra grill space.
Best for Large Cookouts
Kenmore 4-Burner Gas Grill with Side Burner
- 53,000 BTUs for quick heat and reliable control
- 626 sq. in. total cooking space for bigger meals
- Cast iron grates and side burner add versatility
Best For: Families and hosts who need a spacious propane grill for frequent cookouts.
Best for Extra Searing Power – Monument Mesa325 3+1 Stainless Steel Grill
If you want a 3 burner gas grill with side burner that can handle family cookouts without feeling cramped, the Monument Grills Mesa325 is built to do the job. Its 570 square inches of total cooking space, 48,000 BTU output, and cast-iron grates make it a strong pick for everyday grilling, searing, and finishing sauces on the side burner.
Best For: Backyard cooks who want a spacious, high-heat grill with extra side-burner flexibility for meals and prep.
Pros:
- 570 square inches of cooking space gives you room for burgers, chicken, vegetables, and more.
- 48,000 BTU across three burners plus a side burner supports fast heat-up and strong searing.
- Viewing lid, knob lights, and fuel gauge make it easier to monitor cooking and grill status.
- Porcelain-enameled cast-iron grates help with heat retention and cleanup.
Cons:
- The larger footprint may be more grill than small patios need.
- At this power level, setup and propane use may be more demanding than on simpler models.
Overall, the Mesa325 stands out as a practical 3 burner gas grill with side burner for shoppers who want more cooking room and stronger heat control than a basic backyard grill. It’s especially appealing if you value extras like a full-window lid, tool hooks, and an easy-to-read fuel gauge.
Best for Searing – Victory 3-Burner Propane Grill
If you want a 3 burner gas grill with side burner that leans hard into high-heat performance, the Victory 3-Burner Propane Gas Grill is built for fast searing and steady heat. Its stainless steel burners, infrared side burner, and insulated body make it a strong fit for cooks who want restaurant-style browning without giving up everyday grilling space.
Best For: Grillers who want powerful searing on steaks and chops, plus a side burner for quick finishing sauces or sides.
Pros:
- Infrared side burner delivers intense, quick searing heat
- Three stainless steel burners push temperatures above 700°F
- Double-walled hood and body help hold heat more consistently
- All-stainless construction and lifetime warranty add long-term value
Cons:
- More performance-focused than simple weeknight grilling models
- Premium build may put it above entry-level budgets
This 3 burner gas grill with side burner stands out if your priority is heat control and steakhouse-style searing. It is less about bells and whistles and more about durable materials, strong burners, and dependable grilling performance.
Best Budget – Weber Genesis E-325 3-Burner Gas Grill
If you want a dependable 3 burner gas grill with side burner-style cooking convenience, the Weber Genesis E-325 is built for fast preheat, even heat, and serious searing. Its PureBlu burners, cast-iron grates, and extra-large sear zone make it a strong pick for everyday backyard grilling and weekend cookouts.
Best For: Grillers who want a high-heat, even-cooking Weber for steaks, burgers, and family meals.
Pros:
- PureBlu burners are designed for consistent flame coverage and steady heat.
- Large sear zone gives you room to cook multiple steaks or burgers at once.
- Porcelain-enameled cast-iron grates hold heat well for better searing.
- Grease management system helps keep cleanup quick and simple.
Cons:
- No built-in side burner, so it may not fit shoppers who specifically need one.
- Accessory cooking gear for the WEBER CRAFTED system is sold separately.
- Pricier than basic three-burner grills.
Overall, the Genesis E-325 is a strong choice if you care more about grilling performance than extra bells and whistles. It won’t be the cheapest 3 burner gas grill with side burner alternative, but it delivers the heat control and searing ability many backyard cooks want most.
Best for Small Family Cookouts – Feasto 2-Burner Propane Grill with Side Tables
If you want a compact, practical alternative to a 3 burner gas grill with side burner, this Feasto model delivers strong everyday performance without taking up as much patio space. Its all-porcelain-enamel body, 26,500 BTU output, and 416 sq. in. total cooking area make it a solid fit for casual grilling, quick weeknight meals, and small gatherings.
Best For: Small families and backyard hosts who want reliable heat, easy cleanup, and extra prep space in a compact propane grill.
Pros:
- All-porcelain-enamel body and lid help resist heat damage, peeling, and discoloration.
- 26,500 total BTUs from flat stainless steel burners provide broad, even flame coverage.
- 416 sq. in. of total cooking area is enough for up to 18 burgers.
- Two side tables add useful prep space for tools, trays, and ingredients.
Cons:
- It has two burners, so it lacks the flexibility of a true 3 burner gas grill with side burner.
- No dedicated side burner for sauces or side dishes.
- Cooking space is better for smaller groups than large cookouts.
Overall, this is a good choice if you care more about durability, straightforward grilling, and workspace than maximum burner count. For shoppers comparing a 3 burner gas grill with side burner, it stands out as a simpler, more compact option that still handles everyday outdoor cooking well.
Best for Even Heat – Weber Genesis S-335 3-Burner Gas Grill
If you want a 3 burner gas grill with side burner that prioritizes steady heat, strong searing, and everyday reliability, the Weber Genesis S-335 is an easy model to shortlist. Its PureBlu burners, stainless steel grates, and generous cook space make it a practical fit for backyard cooks who want consistent results without a lot of fuss.
Best For: Home grillers who want dependable heat control, a useful side burner for sauces and sides, and a premium-feeling propane grill for regular family meals.
Pros:
- PureBlu burners are designed for even heat and reliable flame coverage across the cooking surface.
- Extra-large sear zone makes it easier to cook multiple steaks or burgers at once.
- Side burner adds flexibility for simmering sauces, heating sides, or sautéing veggies.
- Stainless steel grates, FLAVORIZER Bars, and grease management help improve flavor and cleanup.
Cons:
- Higher price than many standard 3-burner grills.
- Liquid propane tank is sold separately.
- WEBER CRAFTED accessories are extra if you want expanded cooking options.
The Genesis S-335 stands out as a polished 3 burner gas grill with side burner for buyers who care most about even heat and flexible cooking. It is less about bargain pricing and more about long-term performance, searing power, and a smoother grilling experience.
Best for Small Patios – Permasteel 2-Burner Gas Grill
If you want the look and feel of a full-featured outdoor cooker without giving up too much space, this Permasteel is a practical alternative to a larger 3 burner gas grill with side burner. It gives you 22,000 BTUs, a 360 sq. in. total cooking area, foldable side tables, and a dedicated searing side burner for extra flexibility on weeknight cookouts.
Best For: Backyard and patio cooks who want a compact propane grill with a side burner, folding shelves, and easy mobility.
Pros:
- 22,000 BTUs from stainless steel main burners for solid everyday grilling
- 360 sq. in. total cooking space with a warming rack for extra holding area
- Foldable side shelves and tool hooks help save space and keep gear handy
- Four wheels with locking casters make it easier to move and stabilize
Cons:
- It’s a 2-burner grill, so it won’t match the zone control of a true 3 burner gas grill with side burner
- The cooking area is better for small to medium gatherings than big parties
- Side burner adds versatility, but overall output is still midrange
This Permasteel grill makes sense if you want a compact, well-equipped propane setup with a side burner and fold-away convenience. It’s not the biggest option in the category, but it covers the essentials well for buyers comparing a 3 burner gas grill with side burner against smaller patio-friendly models.
Best for Comfort – Weber Genesis E-335 3-Burner Natural Gas Grill
If you want a 3 burner gas grill with side burner that can handle weeknight dinners and larger backyard cookouts, the Weber Genesis E-335 is built for consistency. Its PureBlu burners aim for even heat, while the extra-large sear zone and cast-iron grates give you real steakhouse-style browning.
Best For: Home cooks who want reliable heat, a strong sear, and the convenience of a natural gas grill with an extra side burner.
Pros:
- PureBlu burners are designed to deliver even heat across the cooking surface
- Large sear zone and porcelain-enameled cast-iron grates are great for steaks and burgers
- Side burner adds space for sauces, sides, and sautéed vegetables
- Grease management system helps keep cleanup simpler
Cons:
- Natural gas only, so it won’t work for buyers who need propane
- Priced above basic grills in this category
- Best results depend on having an existing natural gas hookup
The Genesis E-335 stands out as a capable 3 burner gas grill with side burner for shoppers who care more about performance than bargain pricing. If you want even heating, strong searing, and useful side-burner flexibility, it’s a very compelling backyard upgrade.
Best for Fast High-Heat Grilling – Monument Mesa II 410FBZ 4-Burner Grill
If you’re comparing a 3 burner gas grill with side burner and want something that can sear harder and heat up faster, the Monument Grills Mesa II 410FBZ is a strong step up. Its Advanced Broil Zone, 500°F heat-up claim, and four-burner layout make it a practical choice for weeknight cooking, steak nights, and backyard hosting when you want more control over the fire.
Best For: Cooks who want quick startup, strong searing power, and extra grill space without moving into a huge patio grill.
Pros:
- Advanced Broil Zone helps deliver fast, high-heat searing with better temperature control.
- Heats up to 500°F in about 5 minutes for quicker preheating and less waiting.
- 525 sq. inches of total cooking area plus foldable side shelves for prep and serving space.
- 304 stainless steel burners and cast iron grates support durability and strong grill marks.
Cons:
- It is a 4-burner grill, so it may be more grill than some buyers need if they only want a compact 3 burner gas grill with side burner.
- No dedicated side burner for pots or sauce pans.
- Large-capacity design takes up more patio space than smaller grills.
Overall, this grill makes sense if your priority is speed, searing, and flexible cooking space rather than a classic 3 burner gas grill with side burner layout. It offers a solid mix of power and convenience for buyers who want a more capable backyard setup.
Best for Large Cookouts – Kenmore 4-Burner Gas Grill with Side Burner
If you want a 3 burner gas grill with side burner but need more headroom for bigger gatherings, this Kenmore model is a smart step up. It combines strong heat output, a roomy cooking surface, and a useful side burner for sauces or sides, making it easier to manage full backyard meals without juggling extra pans.
Best For: Families or hosts who want a high-capacity propane grill with a side burner for versatile outdoor cooking.
Pros:
- 53,000 BTUs provide fast preheat time and solid grilling power
- Large 626 sq. in. total cooking area is great for crowd-sized meals
- Cast iron grates help hold heat and create strong sear marks
- Electronic ignition and open cart design make startup and access easy
Cons:
- It is larger than a typical 3 burner gas grill with side burner, so it needs more patio space
- Assembly and setup may take some time
- Side burner adds versatility, but it can be less essential for simple grilling-only use
This Kenmore is a good fit if you want the convenience of a 3 burner gas grill with side burner but need extra cooking room and stronger output for regular entertaining. It is more about capacity and flexibility than compact size, which makes it a solid pick for serious weekend grillers.
How We Picked the Best 3 Burner Gas Grill with Side Burner
We prioritized grills that offer dependable main-burner output, a genuinely useful side burner, and a layout that works for real-world outdoor cooking. We also looked at materials, ignition reliability, heat distribution, and whether the grill size makes sense for small patios, family cookouts, or frequent entertaining.
Quick Comparison
In this category, the main differences usually come down to fuel type, total cooking area, burner quality, and cabinet/build materials. Premium stainless-steel models often deliver better longevity and a cleaner look, while porcelain-enameled and painted steel builds can offer stronger value if you want solid performance at a lower price.
Key Buying Factors for a 3 Burner Gas Grill with Side Burner
Heat Output and Control
Look for enough total BTUs to preheat quickly and recover after the lid is opened, but do not shop by BTUs alone. Even heating, well-spaced burners, and responsive knobs matter more than a big number on paper.
Side Burner Use
A side burner is most useful when it is powerful enough for pots and pans, not just warming. If you make sauces, beans, vegetables, or side dishes outdoors, this feature adds real convenience.
Cooking Surface and Layout
Three main burners are usually ideal for households that cook for four to eight people. A good layout should support both direct grilling and indirect zones, with enough room for burgers, chicken, and larger cuts.
Materials and Maintenance
Stainless steel can resist corrosion well, while cast-iron grates often provide strong searing. Check whether the firebox, lid, and control panel are built for regular outdoor exposure, especially if the grill will stay uncovered.
Who Should Buy Which 3 Burner Gas Grill with Side Burner?
If you want the best all-around setup for everyday grilling, choose a balanced 3 Burner Gas Grill with Side Burner that emphasizes even heat and durable grates. If you entertain often, favor a larger cook surface and sturdier cart design. If you are budget-focused, a simpler model with reliable ignition and usable side tables may be enough. For buyers in humid or coastal climates, stainless-steel construction is worth the upgrade because it tends to hold up better over time.
For most shoppers, the sweet spot is a grill that combines dependable main burners, a side burner you will actually use, and a layout that fits your patio without feeling cramped. That combination delivers the most flexibility without overpaying for features you may not need.