Gastronorm (GN) Size Guide: What You Need to Know

A handy guide for Gastronorm (GN) sizes, you can use when meeting GN1/1 or GN1/2 in product specs.

1 July 2026

Have you ever come across terms like GN 1/1 or GN 2/1 on a spec sheet and found yourself wondering what they mean or need a refresher? You're definitely not the only one.

Here’s a quick guide you can share with your team—Plus you can use this to explain things to your customers in the world of hospitality

What is Gastronorm (GN)?

Gastronorm (GN) is the international sizing standard for pans, trays, and containers within a professional kitchen. The whole point is compatibility: GN-sized kit from different brands fits the same cabinets, combi ovens, prep counters, chillers - you name it. In a busy commercial kitchen, this standardisation keeps workflows smooth and set-ups modular.

Why GN sizing matters in commercial kitchens and hospitality environments in the UK

Mix-and-match gear: Buy from different manufacturers without worrying about fit.
Faster service: Standard footprints make line changes and refills quick.
Smarter layouts: Build flexible stations with predictable space use.
Easier purchasing: Order with confidence—GN sizes slot into existing equipment.
Consistent processes: Supports clean, HACCP-friendly cook-chill-serve flows.

GN Size Guide - Quick Focus

All the fractional sizes are based on the GN 1/1 footprint.

GN 1/1 = 530 x 325 mm (the standard “full size” pan)
GN 2/1 = 650 x 530 mm (double-size footprint)
GN1/2, GN1/3, GN1/6 etc. = fractional sizes for flexible layouts

How the fractions fit

Two GN 1/2 = one GN 1/1
Three GN 1/3 = one GN 1/1
Four GN 1/4 = one GN 1/1
Six GN 1/6 = one GN 1/1
Nine GN 1/9 = one GN 1/1

GN defines the footprint, but pans come in different depths to match the job. Common depths: 20, 40, 65, 100, 150, 200 mm

GN size (cheat) sheet

If you work in a professional kitchen, supply to those that do or you’re specifying gear for the hospitality or wider commercial kitchen market - knowing GN (Gastronorm) sizes saves time, avoids frustrating fit issues, and keeps your stations flexible. Once you’ve got GN1/1 locked in, the rest of the system just clicks into place.

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