Cast Iron or Steel Griddles? Compared by Specs
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You are deciding between cast iron vs steel griddle options for your outdoor cooking setup. These two products share a common goal: providing a flat cooking surface for versatile meals. The main difference lies in their construction and scale. One is a heavy, matte cast iron plate designed as an accessory for specific gas grills. The other is a large, powder-coated steel unit with its own stand, hood, and independent burners. Your choice depends on whether you need a grill add-on or a standalone cooking station.
Key differences
| Aspect | Uniflasy Cast Iron Griddle for Weber Q | Blackstone 28-Inch Omnivore Griddle with Hood |
|---|---|---|
| Material | Cast Iron | Steel |
| Cooking Area | 108.36 square inches (12.6" x 8.6") | 524 square inches (28" wide) |
| Form Factor | Griddle accessory plate | Standalone unit with stand |
| Heat Control | Single heat source from compatible grill | Two independently heated burners |
| Included Accessories | Griddle support clips | X-braced hood and grease management system |
Which one should you choose?
Choose Uniflasy Cast Iron Griddle for Weber Q if
- You already own a Weber Q series gas grill and want to expand its cooking surface.
- You prefer the heat retention properties of matte cast iron for smaller batches.
- You need a compact plate that covers half your existing grill for multitasking.
Choose Blackstone 28-Inch Omnivore Griddle with Hood if
- You want a dedicated, standalone griddle with its own stand and hood.
- You need to cook for a group, utilizing the large 524 square inch surface.
- You want independent temperature zones to cook different foods simultaneously.
Verdict: Choose the Uniflasy cast iron plate if you want to augment an existing Weber Q grill with a durable, heat-retentive surface. Select the Blackstone steel griddle if you need a complete, standalone outdoor kitchen station with ample space and independent heat zones.
Cast Iron vs Steel Griddle Specs
Material and Build
The Uniflasy griddle is crafted from matte cast iron, a dense material known for superior heat retention and distribution. This construction helps ensure food cooks evenly and reduces sticking, though it requires careful maintenance to prevent rust. In contrast, the Blackstone 28-Inch Omnivore Griddle uses powder-coated steel. Steel heats up faster than cast iron and offers better thermal shock stability. The powder coating adds a layer of protection against the elements. Each material offers distinct advantages depending on whether you prioritize slow, steady heat or quick, responsive cooking.
Cooking Surface Area
Surface area is a major differentiator between these two options. The Uniflasy Cast Iron Griddle measures 12.6 inches by 8.6 inches, providing a compact cooking zone. This size is ideal for smaller tasks like breakfast items or sides, covering only half of a compatible grill. The Blackstone griddle offers a massive 524 square inches of cooking space. This expansive surface allows you to cook up to 33 fried eggs or 21 burgers simultaneously. If you frequently cook for a group or need to multitask with different foods at various temperatures, the Blackstone provides significantly more room.
Portability and Storage
The Uniflasy griddle is designed for portability and easy storage. Its compact dimensions and lighter weight make it simple to move and store when not in use. It is specifically engineered to fit perfectly on Weber Q series grills, utilizing the grill's existing structure for support. The Blackstone griddle is a substantial standalone unit. It weighs 88.2 pounds and measures 53 inches wide by 25.3 inches deep. This size requires a dedicated space and is not designed for portable or temporary placement. You will need a stable, permanent location for this unit.
Included Accessories
The Uniflasy package includes one cast iron griddle plate and a set of griddle support clips. These clips ensure secure and easy installation on compatible Weber grills, eliminating the need for additional hardware. The Blackstone 28-Inch Omnivore Griddle comes with an X-braced hood. This cover protects the cooking surface when not in use and helps maintain heat efficiency. It also features a patented rear grease management system for easy cleanup. While the Uniflasy focuses on installation hardware, the Blackstone provides protective coverings and cleanup systems.
Heat Management
Heat control varies significantly between the two products. The Uniflasy griddle relies on the heat source of the compatible Weber grill. It benefits from cast iron's ability to hold heat steadily, making it suitable for consistent, lower-temperature cooking tasks. The Blackstone griddle features two independently heated burners. This setup allows you to cook different foods at different temperatures on the same surface. You can make pancakes on one side while cooking bacon on the other. The built-in wind guards also help maintain high heat and improve fuel efficiency in outdoor conditions.
Which Griddle Suits Your Cooking Style
Weber Q grill owners needing accessories
This Uniflasy cast iron plate is designed specifically for Weber Q1200, Q1000, Q120, and Q100 series gas grills. It measures 12.6 by 8.6 inches, covering half the grill surface. The 0.5-inch thickness provides heat retention. You get support clips for secure installation. It allows you to keep the other side open for traditional grilling while using the flat surface for eggs or veggies.
Cooking for large groups on a budget
The Blackstone Omnivore offers 524 square inches of cooking space on its 28-inch steel top. You can cook up to 33 fried eggs or 21 burgers simultaneously. Two independently heated burners let you manage different temperatures for various foods. The powder-coated steel surface resists warping. This large capacity makes it ideal for family meals or entertaining friends outdoors without needing multiple cooking zones.
Users wanting easy grease management
This Blackstone model features a patented rear grease management system. You can guide grease and food debris to the back for collection in a rear grease cup. The steel construction supports this efficient cleanup process. The included X-braced hood protects the surface when not in use. This setup simplifies maintenance compared to manual scraping, making post-cooking cleanup faster and less messy for busy cooks.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Uniflasy Cast Iron Griddle for Weber Q | Weber Q series owners adding flat-top cooking | Check price of Uniflasy Cast Iron Griddle for Weber Q on Amazon |
| 2 | Blackstone 28-Inch Omnivore Griddle with Hood | Large groups needing zone cooking | Check price of Blackstone 28-Inch Omnivore Griddle with Hood on Amazon |
The products compared
Uniflasy Cast Iron Griddle for Weber Q
Best for: Weber Q series owners adding flat-top cooking
- Material
- Cast Iron (what this guide is about)
- Surface Material
- Cast Iron
- Fuel Type
- Gas
- Compatible Appliance
- Griddle
- Dimensions
- 12.6 × 8.6 × 0.5 inches
View on Amazon: Uniflasy Cast Iron Griddle for Weber Q Affiliate link
This Uniflasy griddle is made from cast iron and measures 12.6 by 8.6 inches with a 0.5-inch thickness. It is designed to fit Weber Q1200, Q1000, Q120, and Q100 gas grills. The surface covers half your grill, leaving the other side for traditional grilling. You get the plate and support clips for installation. The cast iron provides even heat distribution and retains heat well for consistent cooking results.
Pros
- Heavy-duty cast iron construction for even heat distribution
- Fits Weber Q1200, Q1000, Q120, and Q100 series grills
- Includes support clips for secure installation
- Raised lip prevents food from falling off
Cons
- Small cooking surface covers only half the grill
- Requires manual seasoning and immediate drying to prevent rust
- No remote or app control for temperature management
Good fit if
- You own a Weber Q1200 or Q1000 gas grill
- You want to cook breakfast items like bacon or eggs on a flat surface
- You prefer the heat retention properties of cast iron
Skip if
- You need a griddle that covers your entire grill surface
- You are using a grill brand other than Weber Q series
- You want a low-maintenance surface that does not require seasoning
Verdict: Uniflasy Cast Iron Griddle for Weber Q is a solid fit for Weber Q series owners who want to expand their cooking options to flat-top style meals. It offers reliable heat retention in a compact size that complements your existing grill setup.
Blackstone 28-Inch Omnivore Griddle with Hood
Best for: Large groups needing zone cooking
- Material
- Steel (what this guide is about)
- Cooking Area
- 524 square inches
- Cover Type
- X-Braced Hood
- Compatible Appliance
- Griddle
- Dimensions
- 25.3 × 53 × 37 inches
- Weight
- 88.2 pounds
View on Amazon: Blackstone 28-Inch Omnivore Griddle with Hood Affiliate link
This 28-inch Blackstone griddle features a powder-coated steel cooking surface with 524 square inches of space. It includes two independently heated burners for zone cooking and built-in wind guards to improve heat retention. The unit measures 53 inches wide and weighs 88.2 pounds. It comes with an X-braced hood cover and a rear grease management system for cleanup.
Pros
- 524 square inches of steel cooking area
- Two independently heated burners for zone cooking
- Built-in wind guards for thermal stability
- Rear grease management system for easy cleanup
Cons
- Heavy at 88.2 pounds
- Large footprint at 53 inches wide
- Hood cover included, not a hard shell
Good fit if
- You need zone cooking with two burners
- You want a steel surface with wind guards
- You have space for a 53-inch unit
Skip if
- You prefer cast iron material
- You have limited outdoor space
- You want a portable lightweight unit
Verdict: Blackstone 28" Steel Omnivore Griddle suits those who need a large steel surface with independent burners. It is a solid choice for groups who value zone cooking and easy grease management.
Specifications side by side
| Spec | Uniflasy Cast Iron Griddle for Weber Q | Blackstone 28-Inch Omnivore Griddle with Hood |
|---|---|---|
| Cooking Area | not stated | 524 square inches |
| Surface Material | Cast Iron | not stated |
| Cover Type | not stated | X-Braced Hood |
| Fuel Type | Gas | not stated |
| Material | Cast Iron | Steel |
| Compatible Appliance | Griddle | Griddle |
| Cover | not stated | Hood |
| Dimensions | 12.6 × 8.6 × 0.5 inches | 25.3 × 53 × 37 inches |
| Weight | not stated | 88.2 pounds |
| Size | 12.6" x 8.6" x 0.5" | 28 |
| Color | Black | Powder Coated Black |
| Model | 6558 6559 | 2287 |
Frequently asked questions
Is cast iron better than steel for heat retention?
Yes, cast iron generally retains heat better than steel. The Uniflasy model uses matte cast iron to provide superior heat distribution. This helps maintain a steady cooking temperature for even results. Steel griddles like the Blackstone Omnivore heat up faster but may not hold that heat as long during heavy use.
Do I need a hood for a steel griddle?
A hood is not strictly required but offers significant benefits. The Blackstone 28-Inch Omnivore includes a hood to help retain heat and protect the surface. This feature is useful for cooking thicker items or in windy conditions. Cast iron plates like the Uniflasy do not typically use hoods as they sit directly on the grill.
How heavy is a large steel griddle?
Large steel griddles are quite heavy due to their size and material. The Blackstone 28-Inch Omnivore weighs 88.2 pounds. This weight provides stability during cooking but requires a sturdy stand or cart. Smaller cast iron options are lighter but still dense, with the Uniflasy measuring 0.5 inches thick for durability.
Can I use a cast iron griddle on a gas grill?
Yes, many cast iron griddles are designed for gas grills. The Uniflasy model is explicitly compatible with Weber Q series gas grills. It sits directly on the grill grates to create a flat cooking surface. Always check the dimensions to ensure it fits your specific grill model before purchasing.
What size should I choose for a steel griddle?
Choose a size based on your cooking volume and space. The Blackstone Omnivore offers a 28-inch cooking width, ideal for large groups. It measures 53 inches wide and 25.3 inches deep. Ensure you have adequate patio or deck space to accommodate this footprint comfortably.
Does cast iron require more maintenance than steel?
Cast iron often requires more specific care to prevent rust. The Uniflasy griddle is made of matte cast iron, which needs seasoning and drying after cleaning. Steel surfaces like the Blackstone are also seasoned but may be easier to wipe down. Both materials benefit from regular oiling to maintain their non-stick properties.

