Grill Sizes — Quick Reference Chart
For exact cooking area and dimensions of specific models, see the grill size chart by model.
| Grill | Cooking area | Best for | Common models |
|---|---|---|---|
| 14–16 inch | 150–200 sq in | 1–4 guests | Weber Smokey Joe, tabletop grills |
| 18 inch | 240 sq in | 4–8 guests | Weber 18" Kettle |
| 22 inch | 363 sq in | 8–15 guests | Weber Original Kettle 22", most standard gas grills |
| 26 inch | 508 sq in | 15–25 guests | Weber Master-Touch 26" |
| 36 inch griddle | 768 sq in | 25–50 guests | Blackstone 36", Camp Chef 36" |
| Offset smoker (mid) | 500–800 sq in | 20–40 guests | Oklahoma Joe's, Char-Griller |
| Large offset / trailer | 1,000+ sq in | 50+ guests | Lang, Yoder, custom pits |
How to Calculate What Grill Size You Need
The formula: (sq in per item) × (items per person) × (guests ÷ batches).
For burgers at a party of 20 cooking in 2 batches: a burger patty needs about 20 sq in of grate space (a 4-inch patty + clearance). Each guest eats 2 patties = 40 sq in per guest. For 20 guests in 2 batches: 20 × 40 ÷ 2 = 400 sq in minimum. That's slightly bigger than a standard 22-inch kettle (363 sq in), so a 26-inch or gas grill is the right call.
Space requirements by meat type
- Burger patty (4-inch): ~20 sq in including spacing — 2 per person
- Bone-in chicken piece: ~28 sq in — 1–2 pieces per person
- Half rack of ribs: ~70 sq in — ½ rack per person
- Sausage / hot dog: ~12 sq in — 2–3 per person
Batch cooking vs single cook
Most backyard BBQs use batch cooking — you grill the first round, let guests start eating, then put the next batch on. This cuts your required grill area roughly in half. For a sit-down dinner where everyone eats at once, you need the full area in one go.
Grill Size by Guest Count — Cheat Sheet
Know your grill size? Now figure out exactly how much meat to buy.
Open BBQ Meat Calculator →FAQ
What size grill do I need for 10 people?
For 10 guests cooking burgers in batches, a standard 22-inch kettle (363 sq in) is sufficient — you'll cook about 18 patties per batch, enough to feed everyone in one or two rounds. If you're cooking ribs or chicken for 10, the 22-inch also works but you'll need two batches or a second grill level (like a smoker with dual grates).
What size grill do I need for 20 people?
For 20 guests, aim for 450–550 sq in if cooking in batches. A 26-inch kettle (508 sq in) or a 3-burner gas grill with a primary grate of about 450–515 sq in handles this comfortably. If you want to cook everything at once (no batches), you need 700–900 sq in — two 22-inch grills side by side is a practical solution.
What size grill do I need for 50 people?
For 50 guests, plan for at least 700–900 sq in of cooking area with batch cooking, or 1,200–1,500 sq in for a single cook. A 36-inch griddle (768 sq in) works for burgers and sausages in batches. For ribs or brisket, you'd want a mid-size offset smoker (600–900 sq in) or two grills.
Is a bigger grill always better?
Not necessarily. Larger grills use more fuel, take longer to preheat, and are harder to manage heat zones on. For most backyard parties of 10–20 people, a 22-inch or 26-inch kettle is the sweet spot — simple, efficient, and produces great results.
Related: BBQ Catering Calculator · BBQ for Beginners · Meat Quantity Calculator