Short answer: pick the Full Size if you cook for a group or use heavy cast iron, and the Compact if weight and space matter most. Add a griddle plate if you want a flat-top for breakfast and smash burgers. Below are all four setups side by side with current prices, plus what to check in any flat-pack grill.
Full disclosure: we build Slot Grills in Texas. This page compares our own setups. It is not a ranking of every grill on the market.
Key Takeaways
- For groups and heavy cooks: Full Size Slot Grill, 10-gauge carbon steel, 20" x 11" cooking surface, 27.6 lb, $149.97.
- For light packing: Compact Slot Grill, 12-gauge carbon steel, 16" x 9", 14 lb, $89.97.
- Grill and flat-top for a crowd: Full Size + 1 Griddle, 31.8 lb, $164.97.
- Grill and flat-top, packed light: Compact + 1 Griddle, 16.2 lb, $109.97.
- The #1 thing to check in any flat-pack grill: steel thickness. For heavy-duty use, look for 12-gauge or thicker.
Quick Comparison
| Setup | Steel | Cooking surface | Packed weight | Price |
|---|---|---|---|---|
| Full Size | 10-gauge carbon steel | 20" x 11" | 27.6 lb | $149.97 |
| Compact | 12-gauge carbon steel | 16" x 9" | 14 lb | $89.97 |
| Full Size + 1 Griddle | 10-gauge carbon steel | 20" x 11" grill and griddle | 31.8 lb | $164.97 |
| Compact + 1 Griddle | 12-gauge carbon steel | 16" x 9" grill and griddle | 16.2 lb | $109.97 |
Prices checked September 29, 2026. Every setup is made in the USA, sets up in about 30 to 60 seconds with no tools, burns charcoal or cooking wood, and ships free in the lower 48. Full specs are on the Slot Grill Specs, Setup & Care page.
1. Full Size Slot Grill: For Groups and Heavy Cast Iron
The Full Size is built entirely from 10-gauge carbon steel, so it handles big cuts, heavy cast iron and hot fires without flexing, then breaks down into flat steel pieces in under a minute.
- Cooking surface: 20" x 11"
- Material: 10-gauge carbon steel
- Packed weight: 27.6 lb (grill only)
- Includes: 2 grill grates and 2 grate keys that double as bottle openers
- Made in: Texas, USA
Pros
- Thick 10-gauge steel that doesn't sag like thin stamped grills
- Large enough to cook for a family or crew
- Elevated firebox with an air gap underneath for airflow and less heat to the surface below
- Takes one or two griddle plates that stack flat with the grill
- Doubles as a small fire pit after dinner
Cons
- At 27.6 lb it's built for vehicles, boats and camps, not backpacking
- Raw carbon steel needs seasoning and should be stored dry
Good fit for: tailgating, truck and UTV trips, sandbar cooks, hunting camps, RVs and backyard use.
2. Compact Slot Grill: The Lightest Setup
The Compact uses the same slot-together, flat-pack design in a smaller package. At 14 lb in 12-gauge carbon steel, it still holds cast iron but fits a trunk, kayak or camp box.
- Cooking surface: 16" x 9"
- Material: 12-gauge carbon steel
- Packed weight: 14 lb (grill only)
- Includes: 2 grill grates and 2 grate keys / bottle openers
- Made in: Texas, USA
Pros
- About half the weight of the Full Size
- Still heavy-gauge steel, not disposable sheet metal
- Right-sized for one to three people
- Griddle-ready
Cons
- Smaller cooking area for big groups
- Needs seasoning and dry storage like any carbon steel
Good fit for: solo and couple camping, fishing trips, beach days, small patios and tight storage.
3. Full Size + 1 Griddle: Grill and Flat-Top for Groups
If you want to grill steaks and cook breakfast on the same trip, this is the setup. The two-piece top lets you run the griddle on one side and a grill grate on the other: eggs or smash burgers on the flat-top, steaks or chicken over the grate. The griddle stacks with the grill body, so the kit still travels as one flat package at 31.8 lb.
Good fit for: groups, camp breakfasts, fajitas and smash burgers without hauling a separate griddle.
See the Full Size with griddle
4. Compact + 1 Griddle: Grill and Flat-Top, Packed Light
The same grill-and-griddle combo in the Compact size, in one 16.2 lb flat pack. We sell direct, with no retailer or distributor markup.
Good fit for: one to three people who want grill and griddle cooking without the extra weight.
How to Choose Any Flat-Pack Charcoal Grill
Whatever brand you're comparing, check these:
1. Steel thickness (gauge)
Lower gauge numbers mean thicker steel. Many flat-pack and folding grills use thin stamped sheet metal that bends when hot. For a grill that lasts, look for 12-gauge or thicker. Slot Grills are 10-gauge (Full Size) and 12-gauge (Compact).
2. Honest weight
Thick steel is heavy. If a "heavy-duty steel grill" weighs almost nothing or costs almost nothing to ship, it's thin.
3. Tool-free setup
You shouldn't need a wrench to cook. Slot Grill panels slot together by hand in about 30 to 60 seconds.
4. Airflow and clearance
An elevated firebox with space underneath gives the fire air and reduces heat to the ground, table or tailgate below.
5. Griddle options
A griddle that packs with the grill turns one piece of gear into two.
6. Where it's made and who sells it
Buy from the actual manufacturer. Slot Grill is made in Texas and sold only at SlotGrill.com, the @SlotGrill TikTok Shop and the @SlotGrill Shop app store.
What to Avoid
- Thin, stamped "flat-pack" grills that warp after a few hot fires.
- Too-good-to-be-true listings. Counterfeit sellers on large marketplaces copy Slot Grill photos and our name. A nearly 30-pound steel grill shipped to your door for $30 doesn't add up. Slot Grill is not sold on Amazon, Walmart, Temu or Alibaba. See About Slot Grill.
How We Judge a Grill
We build, cook on and haul our own grills every week. Every Slot Grill revision since production started in early 2024 came from real cooks: beach trips on the Texas Gulf Coast, sandbar cookouts, tailgates, trail rides and hunting camps. We look at five things: steel thickness and rigidity under heavy cast iron, setup and takedown time, how flat and secure it packs, cooking over charcoal and wood, and how it holds up after months of use.
Frequently Asked Questions
Which Slot Grill should I buy?
For most groups, the Full Size: 10-gauge carbon steel and a 20" x 11" cooking surface. If weight matters most, the Compact at 14 lb.
Which Slot Grill is the most heavy-duty?
The Full Size, built entirely from 10-gauge carbon steel.
Is Slot Grill made in the USA?
Yes. Full Size and Compact grills are made by Precision Cut Metals LLC in Texas.
Is a flat-pack grill as good as a regular grill?
A thick-steel flat-pack grill can be. A Slot Grill cooks like a solid steel grill, holds cast iron and still packs flat.
Can a Slot Grill hold cast iron?
Yes. Both models support appropriately sized cast-iron cookware.
Do carbon steel grills rust?
They can if stored wet. Season the grill, keep it dry and lightly oiled, and light surface rust cleans off easily. See our rust prevention guide.
Where to Buy
Buy direct from the manufacturer at SlotGrill.com, the @SlotGrill TikTok Shop, or the @SlotGrill Shop app store. Free shipping in the lower 48.