Dishwasher Sizes: 18-Inch and 24-Inch Models Compared
Most built-in dishwashers are 24 inches wide, and 18-inch models fit narrower openings. Compare six real models by width, depth, height and place settings.
Most built-in dishwashers are 24 inches wide, which is the standard size for a kitchen cabinet opening. If your kitchen has a narrower space, an 18-inch dishwasher fits instead. The trade-off is capacity: the 24-inch models in this guide list 14 to 16 place settings, and the 18-inch models list 8 to 10.
This guide compares six built-in dishwashers using the details on each product page. For help with features, see our guide to how to choose the right dishwasher, or browse all dishwashers.
- The DW80CG4021SR, FDPC4314AS and GDT550PYRFS are 24-inch dishwashers with 14 to 16 place settings.
- The PDT145SSLSS, SPE53C55UC and DW50T6060US are 18-inch dishwashers with 8 to 10 place settings.
- Depth and height vary by a few inches between models, so check each one against your cabinets.
- The SPE53C55UC is the only 18-inch model here with a third rack.
- Most models list a hard food disposer or leak detection.
Our top picks at a glance
Compare them side by side24-Inch Samsung Pick: Samsung DW80CG4021SR
Samsung DW80CG4021SR 24 inch Built-In Fully Integrated Dishwasher, Whisper Quiet Operation, Height-adjustable Upper Rack, Express 60, in Stainless Steel
The DW80CG4021SR is a 24-inch fully integrated dishwasher with 14 place settings in stainless steel. It lists whisper quiet operation, a height-adjustable upper rack, Express 60, heated dry and leak detection. It is 23 3/4" wide, 24 5/8" deep and 33 3/4" tall.
- Height-adjustable upper rack
- Express 60 cycle
- Leak detection
- 4 cycles
24-Inch Frigidaire Pick: Frigidaire FDPC4314AS
Frigidaire FDPC4314AS 24 inch Full Console Built-In Dishwasher with 14 Place Settings, 4 Cycles, 5 Wash Levels, Energy Star, NSF Certified (Stainless Steel)
The FDPC4314AS is a 24-inch Gallery full console dishwasher with 14 place settings and a tall tub. It lists 4 cycles, 5 wash levels, heated dry, Energy Star and NSF certification. It is 24" wide, 25" deep and 33 1/2" tall.
- Tall tub
- 5 wash levels
- Energy Star and NSF
- Plastic tub
24-Inch GE Pick: GE GDT550PYRFS
The GDT550PYRFS is a 24-inch fully integrated dishwasher with 16 place settings in fingerprint-resistant stainless steel. It lists Dry Boost, AutoSense Wash, a hard food disposer, a tall tub and Energy Star certification.
- 16 place settings
- Hard food disposer
- Dry Boost
- Plastic tub
18-Inch GE Profile Pick: GE Profile PDT145SSLSS
GE Profile PDT145SSLSS 18 inch Built-In Dishwasher with 8 Place Settings, Stainless Steel Tub, Energy Star, ADA Compliant (Stainless Steel)
The PDT145SSLSS is an 18-inch built-in dishwasher with 8 place settings and a stainless steel tub. It lists Energy Star, ADA compliance and a hard food disposer, with 3 cycles and no heated dry. It is 17 3/4" wide, 22 1/2" deep and 32 1/2" tall.
- Stainless steel tub
- ADA compliant
- Hard food disposer
- No heated dry
18-Inch Bosch Pick: Bosch SPE53C55UC
The SPE53C55UC is a smart 18-inch 300 Series dishwasher with 10 place settings, PrecisionWash, Home Connect, a third rack and AquaStop Plus. It lists a stainless steel tub, 5 cycles and a cutlery tray, and it is ADA compliant.
- Third rack
- Home Connect
- AquaStop Plus
- Does not accept custom panels
18-Inch Samsung Pick: Samsung DW50T6060US
Samsung DW50T6060US 18 inch Dishwasher with 8 Place Settings, 5 Wash Cycles, 46 dBA, Digital Touch Control and Stainless Steel Tub in Stainless Steel
The DW50T6060US is an 18-inch dishwasher with 8 place settings and 5 wash cycles in stainless steel. It lists a 46 dBA sound level, digital touch control, a stainless steel tub, a hard food disposer, a cutlery tray and leak detection.
- 46 dBA
- Cutlery tray
- Leak detection
- 8 place settings
Dishwasher Sizes Compared
Samsung 24 | Frigidaire 24 | GE 24 | GE Profile 18 | Bosch 18 | Samsung 18 | |
| Model | DW80CG4021SR | FDPC4314AS | GDT550PYRFS | PDT145SSLSS | SPE53C55UC | DW50T6060US |
|---|---|---|---|---|---|---|
| Price | $395 | $393 | $393 | $893 | $1,099 | $805 |
| Nominal size | 24 inch | 24 inch | 24 inch | 18 inch | 18 inch | 18 inch |
| Place settings | 14 | 14 | 16 | 8 | 10 | 8 |
| Width | 23 3/4" | 24" | 23 3/4" | 17 3/4" | 17 5/8" | 18" |
| Depth | 24 5/8" | 25" | 24" | 22 1/2" | 22 9/16" | 22 7/16" |
| Height | 33 3/4" | 33 1/2" | 33 3/8" | 32 1/2" | 32 1/16" | 32 1/16" |
| Racks | 2 rack | 2 rack | 2 rack | 2 rack | 3 rack | 2 rack |
| Tub | Hybrid | Plastic | Plastic | Stainless steel | Stainless steel | Stainless steel |
| Cycles | 4 | 4 | 4 | 3 | 5 | 5 |
| View | View | View | View | View | View |
24-Inch Dishwashers
The 24-inch size is the standard for a kitchen cabinet opening. These models list 14 to 16 place settings and are about 23 3/4" to 24" wide. They are 24" to 25" deep and 33 3/8" to 33 3/4" tall.
- Samsung DW80CG4021SR: 14 place settings
- Frigidaire FDPC4314AS: 14 place settings
- GE GDT550PYRFS: 16 place settings
18-Inch Dishwashers
An 18-inch dishwasher fits a narrow cabinet opening, which can be useful in small kitchens and apartments. The three here list 8 to 10 place settings. The PDT145SSLSS and SPE53C55UC list ADA compliance, and the SPE53C55UC adds a third rack. See our compact appliance guide for more small-space ideas.
Measure Before You Buy
Measure the width, height and depth of the opening, and also check the space for the water, drain and power connections. Dishwashers in this guide are 32 1/16" to 33 3/4" tall, so check the height under your counter. Our quiet dishwasher guide covers sound levels.
How to Choose a Dishwasher Size
- 01
Measure the openingCheck width, depth and height.
- 02
Pick the widthChoose 24-inch for the most capacity or 18-inch for a narrow space.
- 03
Check the capacityCompare place settings with the size of your household.
- 04
Pick the featuresChoose rack, tub and cycle options you will use.
Our picks by budget
Compare dishwashers by width, capacity and features.
Shop dishwashersFrequently Asked Questions
What is the standard dishwasher size?
Most built-in dishwashers are 24 inches wide. The 24-inch models in this guide list 14 to 16 place settings.
Do 18-inch dishwashers hold less?
Yes. The 18-inch models here list 8 to 10 place settings.
Which 18-inch dishwasher has a third rack?
The Bosch SPE53C55UC lists a third rack.
Are 18-inch dishwashers ADA compliant?
The PDT145SSLSS and SPE53C55UC list ADA compliance.
Which dishwashers list a hard food disposer?
The GDT550PYRFS, PDT145SSLSS and DW50T6060US list a hard food disposer.
