If you have ever ordered commercial kitchen equipment and found yourself confused by "hotel pan" on one supplier's catalog and "gastronorm pan" on another's, you are not alone. These two terms describe the same category of food pan — but they come from different parts of the world and carry slightly different size conventions.
This guide explains everything a foodservice buyer, restaurant operator, or institutional procurement manager needs to know: where the names come from, how sizes map between systems, whether the pans are interchangeable, and which standard to specify for your operation.
1. Naming, Origin, and Regional Usage
The Gastronorm Standard (Europe)
The term "gastronorm" comes from the European standard EN 631, published in 1993 and adopted across the European Union. The standard defines a system of container sizes based on a 1/1 base unit of 530 mm x 325 mm (approximately 20.9 x 12.8 inches). All other sizes are fractions of this base: 1/2, 1/3, 1/4, 1/6, 1/9, and 2/1 (double).
The gastronorm system is used throughout Europe, the Middle East, Asia, and most international hotel and catering chains. When a kitchen equipment supplier in the UK, Germany, France, Australia, or China refers to a "GN pan," they mean a container built to EN 631 dimensions.
The Hotel Pan (North America)
The term "hotel pan" is the dominant terminology in the United States and Canada. These pans were historically used in hotel kitchens and steam tables to hold and serve large volumes of food. The US full-size hotel pan measures 20.75 x 12.75 inches (527 mm x 324 mm) — very close to, but not identical to, the GN 1/1 standard.
American foodservice equipment manufacturers (such as Vollrath, Cambro, and Carlisle) use hotel pan sizing. US kitchen equipment — including steam tables, chafers, and holding cabinets — is typically designed around hotel pan dimensions.
| Term | Standard | Primary Region | Base Size (W x D) |
|---|
| Gastronorm Pan / GN Pan | EN 631 (ISO 1996) | Europe, Middle East, Asia, international chains | 530 x 325 mm |
| Hotel Pan / Steam Table Pan | NSF / US industry convention | United States, Canada | 527 x 324 mm (approx.) |
2. Size Equivalents: GN Fractions vs US Hotel Pan Fractions
Both systems use the same fractional notation (1/1, 1/2, 1/3, etc.) and the fractions correspond to the same visual layout on a steam table or bain-marie. The dimensions are very close but not perfectly identical due to rounding between metric and imperial systems.
| Size | GN Dimensions (mm) | US Hotel Pan (inches) | US Hotel Pan (mm approx.) | Difference |
|---|
| Full / 1/1 | 530 x 325 | 20.75 x 12.75 | 527 x 324 | 3 mm x 1 mm |
| Half / 1/2 | 265 x 325 | 12.75 x 10.375 | 324 x 263 | 1-2 mm |
| Third / 1/3 | 176 x 325 | 12.75 x 6.875 | 324 x 175 | 1 mm |
| Quarter / 1/4 | 265 x 162 | 10.375 x 6.375 | 263 x 162 | 2 mm |
| Sixth / 1/6 | 176 x 162 | 6.875 x 6.375 | 175 x 162 | 1 mm |
| Ninth / 1/9 | 176 x 108 | No US equivalent | - | GN only |
| Double / 2/1 | 650 x 530 | No US equivalent | - | GN only |
Standard depths available in both systems: 20 mm, 40 mm, 65 mm, 100 mm, 150 mm, and 200 mm. Depth specifications are essentially identical between the two standards.
3. Are They Interchangeable?
In practice, GN pans and US hotel pans are functionally interchangeable in most commercial equipment. The 2-3 mm dimensional difference is small enough that a GN 1/1 pan will fit into US-spec steam tables, chafers, and holding cabinets — and vice versa. However, there are situations where the difference matters.
Steam Tables and Bain-Maries
Most modern steam table frames and bain-marie units accommodate both GN and hotel pan dimensions. The 3 mm gap on a GN pan in a US-spec frame is not significant for service. Where it matters: tight-fit or sealed systems (blast chillers, combi oven trays) may be designed for one standard only. Always check the equipment manufacturer's specification sheet before ordering pans.
Chafers (Chafing Dishes)
Chafer frames sold in the US are built for hotel pan dimensions. GN pans drop in without issue — the 1-3 mm difference creates no functional problem for buffet service. Lids, however, may not fit perfectly if the lid was designed for one standard and the pan is the other. When ordering lids separately, specify either GN or hotel pan to avoid mismatches.
Holding Cabinets and Retherm Units
Heated holding cabinets are typically designed around US hotel pan fractions. GN pans will fit but may not engage anti-tilt runners designed for hotel pan rim profiles. For equipment used in Europe or Asia, GN-spec pans fit holding cabinet shelving without issue.
Lids and Covers
This is the one area where interchangeability breaks down. A lid designed for a GN 1/1 pan (530 x 325 mm) will not create a proper seal on a US hotel pan (527 x 324 mm) and vice versa. Always order lids from the same manufacturer and in the same standard as your pans.
4. When to Choose GN Standard vs US Hotel Pan Standard
| Scenario | Recommended Standard | Reason |
|---|
| Restaurant or hotel in the United States | US Hotel Pan | All local steam tables, chafers, and holding units are built to hotel pan dimensions |
| Restaurant or hotel in Europe, Middle East, Asia | GN (EN 631) | Local equipment built to EN 631; replacement pans, lids, and racks available from any local supplier |
| International hotel chain (multi-region properties) | GN (EN 631) | GN is the international standard; ensures sourcing consistency globally |
| Export product for EU markets | GN (EN 631) | EN 631 compliance is expected by European buyers and distributors |
| Catering company in the US with imported equipment | Verify equipment spec first | If equipment is imported from Europe it may be GN-spec; if purchased domestically it is hotel pan spec |
| OEM buyer sourcing from China for global distribution | GN + US sizes as separate SKUs | GN covers the majority of global markets; add US hotel pan sizes for North American distribution |
5. Material Options: Stainless Steel, Polycarbonate, and Melamine
Both GN pans and hotel pans are available in three main materials. The right choice depends on the application.
Stainless Steel
The default material for professional use. SUS304 (18/8) stainless steel handles temperatures from -40 C to 300 C, is dishwasher safe, non-reactive to acidic foods, and lasts decades.
Best for: Hot food holding, oven-to-table service, steam tables, combi ovens, blast chilling, long-term institutional use
Limitation: Opaque (cannot see contents without opening); heavier than polycarbonate
Material grades: SUS304 for food-contact applications; SUS201 for non-direct-contact or budget applications
Polycarbonate (Clear Plastic)
Transparent polycarbonate pans allow visual inspection of contents without opening — essential for cold display cases, salad bars, and refrigerated buffets.
Best for: Cold food display, salad bars, refrigerated service, bakery display, portioning stations
Limitation: Not oven-safe (rated to 99 C maximum); not suitable for hot holding above this threshold
Melamine
Melamine pans offer a clean, white appearance at lower cost. However, melamine degrades under commercial dishwasher cycles, cracks with temperature cycling, and can leach into acidic or hot foods.
Best for: Cold decorative display only, low-frequency use
Limitation: Not safe for heating above 70 C; not safe for acidic foods; degrades with repeated commercial washing
| Material | Temperature Range | Oven Safe | Dishwasher Safe | Best Application |
|---|
| Stainless Steel SUS304 | -40 C to 300 C | Yes | Yes (commercial) | Hot holding, oven, steam table, blast chiller |
| Polycarbonate | -40 C to 99 C | No | Yes (top rack) | Cold display, salad bar, refrigerated service |
| Melamine | Up to 70 C | No | Limited | Cold decorative display only |
Frequently Asked Questions
Q: Are hotel pans and gastronorm pans exactly the same size?
Almost, but not exactly. The GN 1/1 pan is 530 x 325 mm; the US full-size hotel pan is approximately 527 x 324 mm. The 2-3 mm difference means they fit in each other's equipment frames in most cases, but lids are not interchangeable between the two standards.
Q: Can I use a GN pan in a US steam table?
Yes, in most cases. The 3 mm difference does not cause functional problems in standard steam table frames. In tight-fit or sealed applications (blast chillers, combi oven trays), always check equipment specifications first.
Q: What does "gastronorm tray" mean?
A gastronorm tray is another name for a gastronorm pan, typically used to describe shallower models (20-40 mm depth) used for cold display or ingredient staging.
Q: Which standard should I specify when ordering from a Chinese manufacturer?
Specify GN (EN 631) for international supply. Chinese manufacturers produce both GN and US hotel pan sizes as separate SKUs. State the size (e.g., GN 1/1), depth (e.g., 65 mm), material (e.g., SUS304), and surface finish in your inquiry.
Q: Are polycarbonate hotel pans food safe?
Food-grade polycarbonate is safe for cold food applications. Modern polycarbonate rated for food contact is BPA-free. Do not use polycarbonate pans above their rated temperature (typically 99 C) as degradation may occur.
Najor: Manufacturer of GN Pans and US Hotel Pan Sizes
Najor Cookware (KongTai Stainless Steel Group) manufactures stainless steel gastronorm pans and hotel pans to both EN 631 (GN) and US hotel pan dimensions.
GN sizes: 1/1, 1/2, 1/3, 1/4, 1/6, 1/9, 2/1
US hotel pan sizes: Full, half, third, quarter, sixth
Depths: 20 / 40 / 65 / 100 / 150 / 200 mm
Material: SUS304 standard / SUS201 economy
Thickness: 0.5 mm / 0.7 mm / 1.0 mm
Surface finish: Mirror polish, matte sandblast, standard polish
Customization: Logo engraving, PVD coating, custom depth, anti-jam edges, private-label packaging
Certifications: CE / FDA / LFGB / DGCCRF
MOQ: 100 pcs (wholesale) / 5,000 pcs (OEM)
Sample lead time: 7 days
Production lead time: 25-30 workdays
Contact: sales@najorcookware.com | www.najorcookware.com