Thermoformed disposable plastic food serving trays, as an important component of modern packaging and food service, have standardized dimensions that are crucial for product production, distribution, and use. These products are widely used in food delivery, food packaging, and retail display, and their diverse sizes reflect the specific needs of different application scenarios.
Various sizes of thermoformed plastic food serving trays
I. Product Classification and Application Scenarios
1.1 Classification System by Use
The classification of thermoformed disposable plastic food serving trays by use directly affects their size specifications. Based on actual application scenarios, they can be mainly divided into the following categories:
Food Delivery
Including fast food trays, fried rice trays, noodle bowls, etc. These products usually need to consider compatibility with takeaway packaging, and their size specifications are relatively standardized. Western fast-food chains widely use plastic trays to hold hamburgers, fried chicken, French fries, and other foods.
Food Packaging
Includes fruit trays, vegetable trays, fresh produce trays, mooncake trays, jelly cups, yogurt cups, etc. The size design considers display effect and preservation needs with good sealing and moisture-proof properties.
Retail Display
Mainly used for cake display trays, dessert trays, and fruit platters. These products require high standards for appearance and transparency, suitable for holding fruits, vegetables, and pastries.
1.2 Classification System by Material
| Material Type | Key Properties | Temperature Resistance | Applications |
|---|---|---|---|
| PS (Polystyrene) | Low density, good plasticity, poor toughness | Limited (-20°C to 70°C) | General food packaging, electronic components |
| PP (Polypropylene) | Excellent toughness, microwaveable, and eco-friendly | -30°C to 120°C | High-end food packaging, microwave-safe containers |
| PET | High strength, high transparency, recyclable | -40°C to 60°C | Food, medicine, cosmetics, packaging |
| PVC | High transparency, easy to heat seal, and toxic additives | 0°C to 60°C | Electronics, toys (not food/medicine) |
| PETG | Excellent transparency, smoothness, and expense | -40°C to 70°C | Premium display packaging |
1.3 Classification by Shape and Structure
Shape Classification
- Round: Most common shape for food serving trays
- Square: Efficient use of storage space
- Oval: Specialized for certain food types
Structural Classification
- Shallow plates: Height 15-30mm
- Deep plates: Height > 30mm
- Compartmentalized plates: With internal dividers
- Lidded plates: With matching lids
II. Diameter Size Specification System
2.1 Standard Diameter Series
The diameter specifications of thermoformed disposable plastic plates have formed a standard series mainly using inches as the unit. The main standard diameter series includes:
≈ 156mm
≈ 186mm
≈ 192/168mm
≈ 220/190mm
≈ 220mm
≈ 240/255mm
≈ 305mm
Note: Thickened versions have slightly different dimensions with specific height (19mm) and weight specifications.
2.2 Diameter Specifications Classified by Use
Thermoformed round plates for different uses have significant differences in diameter specifications, reflecting the needs of specific application scenarios:
Small Plates (≤ 150mm)
- Condiment dishes, dipping sauce plates
- Small snack plates (60-150mm)
- 6-inch plates for bread, side dishes, and desserts
Medium Plates (150-250mm)
- Most common size range (8.75"-10")
- Fast food plates, fruit plates, salad plates
- 9-inch: standard lunch plate size
Large Plates (≥ 250mm)
- Pizza plates, large salad plates
- 12-inch for large platters and shared meals
- 14"/16" for special catering services
Regional Preference Insight: 9-10 inches is standard for Western restaurants, while Asian and EU markets prefer 8.75-inch plates reflecting dietary culture differences. This regional difference reflects the influence of different dietary cultures and consumption habits on product size.
2.3 Diameter Specifications of Compartmentalized Trays
| Diameter | Compartment Count | Primary Application | Key Features |
|---|---|---|---|
| 20cm | 3 | Japanese sushi | Different ingredients separation |
| 25cm | 5 | Work lunches, student meals | Combination packaging |
| 32cm | 5 | Larger portion meals | Increased capacity |
| 35cm | 6 | Catering services, banquets | Large-scale serving |
2.4 Special Specifications and Custom Sizes
Imperial Extended Specifications
2", 3", 4", 5", 6", 7", 8", 9", 10", 12", 14", 16" - small sizes for industrial use or handicrafts
Metric Extended Specifications
5mm, 10mm, 12mm, 22mm, 25mm, 35mm, 50mm, 60mm, 70mm, 90mm - 35/60/70/90mm for laboratory petri dishes
Customization Options: Manufacturers provide custom sizes from 1 inch to 12 inches or larger, with maximum diameter up to 1 meter (1000mm).
2.5 Size Preferences in the International Market
US Market
- Prefers larger sizes (9", 10", 12")
- Suitable for full-course main dishes
- Reflects larger portion food culture
European Market
- Prefers smaller sizes (8", 9")
- Smaller portions, eco-friendly packaging
- Reduces material usage and waste
Japanese/Korean Market
- Prefers 7" and 8.75" sizes
- Smaller portions, bento box compatible
- Aligns with refined Asian food culture
Export products require dual labeling (inches + centimeters) for EU/Japan metric packaging requirements
III. Market Mainstream Specifications Survey
3.1 Analysis of Best-Selling Specifications on E-commerce Platforms
Alibaba Platform
- Best-selling: 8", 9", 10", 12" PP transparent round plates
- Used for fruits, desserts, and shallow dishes
- Packaging: 10 pieces per pack, 500 pieces per box
- Thickness: usually 1mm
Taobao Platform
- Best-selling: 23cm (≈9") transparent plates
- 100-compartment round plastic plates (23cm diameter)
- Transparent design for easy content identification
- Sturdy and durable structure
Price Factors: Larger sizes command higher prices; special materials (PETG) are significantly more expensive than standard materials (PS, PP).
3.2 Wholesale Market Specification Distribution
Conventional Catering Specifications
Cold dishes, snacks
Fast food, daily catering
Standard catering size
Main courses, large portions
Special-Purpose Specifications
Sushi plates (20cm, 25cm, 32cm, 35cm compartmentalized), mooncake trays, and fruit display plates occupy specific market share with fixed specifications for industry-specific needs.
Regional Differences: Southern regions use smaller trays for delicate dishes, northern regions use larger trays for bigger portions.
3.3 Industry Application Specification Preferences
Fast-Food Industry
8.75" & 9" specifications
Sealable containers, clamshell packaging, and high standardization
Hotels & Restaurants
10" & 12" specifications
Buffet services, stronger edges, aesthetic appearance
Cafes & Bakeries
6" & 7" specifications
Cake slices, croissants, small pastries, and high presentation standards
School & Corporate Canteens
7" & 8" specifications
Economical, practical, sufficient space for meals
3.4 Export Market Specification Requirements
| Market | Preferred Sizes | Key Requirements | Standards Compliance |
|---|---|---|---|
| US | 9", 10", 12" | Large portions, FDA standards | FDA food safety compliance |
| Europe | 8", 9" | Smaller portions, eco-friendly | Recyclable standards, EU regulations |
| Japan/Korea | 7", 8.75" | Bento compatibility, high precision | Strict quality inspection standards |
Important Note: Export products require dual dimension labeling (inches + centimeters) for EU/Japan markets. Environmental requirements, food safety standards, and packaging waste disposal regulations vary by country.
3.5 Trends in Specification Standardization
Specification Simplification
Reducing production costs through standardized systems, decreasing customized product proportion - especially in large-scale production and chain business models.
Modular Design
Combining standard-sized trays with lids/dividers to create diverse packaging solutions meeting various application needs.
Environmental Orientation
Increasing demand for biodegradable materials and lightweight designs driving thinner, more eco-friendly product specifications.
Intelligent Requirements
High-end applications requiring temperature sensing/preservation functions are creating new specification design challenges.
IV. Summary
The standard size system for thermoformed disposable plastic food serving trays is a comprehensive technical system encompassing product classification, standard specifications, dimensions, tolerance requirements, and market applications.
Product Classification
Classified by use (catering/takeaway, packaging, retail), material (PS, PP, PET, PVC, PETG), and shape (round, square, oval) with specific size considerations for each category.
Standard Systems
International (ISO, ASTM) and domestic (GB/T, QB/T) standards with GB/T 18006.1-2025 (effective 2026) specifying dimensional accuracy and performance requirements.
Diameter Specifications
Inch-based standard series (5"-12") corresponding to 150-305mm metric sizes with size variations for different use cases (small/medium/large plates).
Thickness & Tolerances
Thickness: 0.1-2.0mm (0.5-1.0mm most common) with material-specific variations. Tolerances: ±1.0mm (dimension), ±0.1mm (thickness), ±5% (weight).
Market Applications
8"-10" best-selling on e-commerce; 7"-10" dominant in wholesale. Industry-specific preferences and regional export differences (US large, Europe medium/small, Japan/Korea small).