If you operate a commercial kitchen, you know that efficiency relies heavily on standardization. Among the most crucial standards worldwide is the Gastronorm (GN) system.However, terminology like 1/1, 2/3, and "hotel pans" can confuse even experienced B2B buyers. Ordering the wrong size disrupts workflow, causes fitment issues, and ultimately eats into your profit margins.In this guide, we break down exactly what GN sizes mean and how to choose the right depth. You will learn how to maximize modularity and prep speed in your professional kitchen.

What Exactly is Gastronorm (GN)?

Hailing from Europe, Gastronorm is an international standard (EN 631) for food container sizes. The catering industry uses this system to ensure universal equipment compatibility.This means a pan made by one manufacturer will fit perfectly into equipment made by another. It works seamlessly across commercial ovens, refrigerators, steam tables, and salad bars.

"The primary goal of GN standardization is to make the equipment in professional kitchens modular, interchangeable, and highly efficient." – Najor Cookware Engineering Team

Understanding the Base GN Sizing System

The entire modular system revolves around the GN 1/1 pan. This is universally considered the base "Full Size" footprint in the culinary world.All other GN sizes are simply fractions of this primary dimension. Here is how the most common sizes break down for commercial sourcing:

• GN 1/1: The standard Full Size pan (530 x 325 mm).

• GN 1/2: Exactly half the size of a 1/1 pan.

• GN 1/3: One-third the size, typically used for salad bar toppings.

• GN 1/6: One-sixth the size, highly common in sandwich prep stations.

Why Depth Matters Just as Much

Knowing the footprint is only half the battle. You must also specify the correct depth for your specific culinary task to avoid overflowing or wasting space.Different depths are engineered for different functions, from shallow display trays to deep bulk storage. Standard B2B depths include:

• 65mm (2.5"): The absolute standard for hot steam table service.

• 100mm (4"): Ideal for high-capacity food storage or holding warm soups.

• 150mm (6"): Used primarily for bulk storage and high-volume liquids.

Unlocking Efficiency with Kitchen Modularity

The true beauty of GN pans lies in their seamless modularity. You can easily fit various smaller pans into a single standard GN 1/1 space on your steam table.This allows chefs to create flexible food presentations and rapid menu variations. Best of all, you never have to change your underlying equipment layout or buy new tables.By utilizing simple adapter bars, you can securely hold mixed configurations. For example, placing two GN 1/4 pans and one GN 1/2 pan in the exact same well.

Conclusion

Understanding standard sizes is essential for optimizing any commercial food operation. The right pan setup reduces food waste, streamlines daily prep, and ensures total equipment compatibility.Are you ready to update your kitchen inventory with premium, stackable SUS304 pans? Contact Najor Cookware today to request our full catalog and exclusive B2B pricing.What is your go-to GN pan configuration for the busy prep line? Let us know in the comments below!