Dishwasher Sizes
Commercial dishwashers range in size from compact 24-inch undercounter models to extensive conveyor units several feet wide. The most common size, a 24-inch undercounter dishwasher, provides reliable cleaning power without taking up excess space, making it ideal for small restaurants, bars, and cafes. Larger dishwasher types, however, provide a greater processing capacity. Choosing the right size depends on your kitchen's dish volume, available space, and budget.
Dishwasher Size Chart
| Category | Width (in.) | Rack Capacity (per hour) | Common Uses |
|---|---|---|---|
| Undercounter Dishwasher | 23-25 | 20-45 | Cafes, diners, and bars |
| Glass Washer | 23-25 | 30-40 | Bars and pubs |
| Door-Type Dishwasher (Single Rack) | 25-30 | 40-60 | Mid-sized restaurants and casual dining |
| Door-Type Dishwasher (Double Rack) | 25-30 | Up to 175 | Higher-volume restaurants |
| Conveyor Dishwasher | 50-100 | 200-400 | Buffets, hospitals, and cafeterias |
Standard Dishwasher Sizes Explained
Commercial dishwashers sizes vary by type, with undercounter, glass washer, door-type, and conveyor units each built to meet different service needs. Each type has an estimated standard size and offers specific capacities suited to different layouts and its role in the kitchen.
Undercounter Dishwashers
Undercounter dishwashers are the most compact option, typically measuring around 23 to 25 inches wide, 25 inches deep, and less than 35 inches high. Depending on the model, undercounter dishwashers can process between 20 and 45 racks per hour, making them a popular choice for lower-volume cafes, diners, and bars with limited space.
Glass Washers
The standard size for glass washers ranges from 23 to 25 inches wide, 22 to 26 inches deep, and 30 to 42 inches high. Designed specifically for fragile glassware, these machines can clean 30 to 40 racks per hour and are commonly used in bars, pubs, and restaurants serving high volumes of drinks.
Door-Type Dishwashers
Door-type dishwashers usually measure around 25 to 30 inches wide by 25 to 30 inches deep and as tall as 90 inches. These dishwashers maximize vertical space and come in single- or double-rack designs. Built for mid-sized operations, door-type models process 40 to 60 racks per hour on average, while some can wash as many as 175 racks per hour.
Conveyor Dishwashers
With a standard size spanning 50 to 100 inches wide by 25 to 30 inches deep by 55 to 75 inches high, conveyor dishwashers are the largest dishwasher type. These high-capacity units can clean between 200 and 300 racks per hour, with some models reaching 400 racks per hour, making them the best option for large restaurants, hospitals, and cafeterias where dish turnover is constant.
How to Choose the Right Dishwasher Size
- Consider your menu: The number of racks you generate depends on your menu and service style. Fine dining typically produces more dishes per guest, while quick-service concepts prioritize speed and turnover
- Plan for peak demand: To prevent backups, choose a dishwasher that can handle your busiest period and not just your average service
- Factor in all dishes: When calculating capacity needs, account for pots, pans, and prep utensils, not just dining room dinnerware and glasses
- Assess space limitations: Measure your kitchen layout to ensure the dishwasher you select fits comfortably, supports efficient workflow, and has room for ventilation
For more guidance on selecting the best unit for your operation, explore our commercial dishwasher buying guide.
FAQs – Dishwasher Sizes
Are all 24-inch dishwashers the same size?
No, not all 24-inch dishwashers are the same size. While this width is common, the depth and height can vary by model, especially between residential and commercial units. For example, commercial undercounter dishwashers are usually around 23 to 25 inches wide but can vary in height from 30 to 35 inches.
Are all dishwashers 24 inches wide?
No, not all dishwashers are 24 inches wide. While 24 inches is the most common size for standard commercial and residential dishwashers, compact models can be as narrow as 18 inches, and larger units like door-type and conveyor dishwashers can span 24 inches or more depending on capacity and design.
How do you measure a dishwasher to buy a new one?
To measure a dishwasher, evaluate its width across the front, its depth from the front edge to the back, and its height from the floor to the top. Once you have these measurements, compare them to the space available in your kitchen to ensure the proper fit.
How much space do you need on either side of a dishwasher?
The amount of clearance needed on each side of a dishwasher depends on the brand and model, as each manufacturer provides different installation requirements. Always check the manufacturer's installation manual for exact clearance specifications.
What is the difference between commercial and residential dishwasher sizes?
Commercial dishwashers are generally larger and designed to handle high capacities, with some models processing hundreds of racks per hour. Residential dishwashers are smaller and built for lower volumes in home kitchens.
Shop All Dishwashers at KaTom
KaTom carries a wide selection of commercial dishwashers, from compact undercounter units to high-capacity conveyor models. Whether you need a glass washer for your bar or a door-type dishwasher for a busy kitchen, you can find reliable, efficient options to match your operation's needs. Browse all commercial dishwashers at KaTom today.
