
A built-in small dishwasher is usually an 18-inch model that fits under a standard counter where a 24-inch unit won't. If your kitchen has one cabinet gap and little spare room, this guide shows which options fit, what to check before you buy, and who should look at a different type.
Our top picks
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- 1Check price on Amazon
COMFEE' 18 Inch Built-in Dishwasher
Buyers with an 18-inch gap who weigh the listing rating first
- 2Check price on Amazon
Midea 18 Inch Built-in Dishwasher
Buyers who want a rating based on a larger sample
How we researched
We reviewed nine current search results and six Amazon listings for 18-inch built-in dishwashers. The results include manufacturer-style product pages, retail category pages and review roundups. From them we pulled widths, noise levels and descriptions of fit, plus the Amazon ratings, rating counts and recent purchase counts shown on each listing. This guide compares products using manufacturer specifications, current Amazon listings and owner reviews; we did not test them hands-on.
Short answer
If you have a standard 18-inch gap, start with an 18-inch built-in listing. Our first pick is COMFEE' 18 Inch Built-in Dishwasher, which has 4.3 stars from 45 ratings on Amazon and 200+ bought in the past month. Its alternative is the Midea 18 Inch Built-in Dishwasher, which has 4.1 stars from 562 ratings on Amazon. Both sit in the over $300 price tier. Sudsspot may earn a commission if you buy through the Amazon links in this guide. The price you pay does not change.
Buying criteria
We weighted the criteria in this order:
- Fit. Built-in 18-inch models are described as fitting under standard counters when you lack room for a 24-inch unit. Measure your opening before anything else.
- Slim build. Slimline models are described as a fit for smaller kitchens, so check depth as well as width.
- Noise. One Samsung 18-inch built-in is listed at 46 dBA. Noise ratings vary by model, so check the exact model number you're buying.
- Buyer signals. Amazon ratings and recent purchase counts. A score based on 45 ratings is less certain than one based on 562.
How we chose
We ranked fit first, then slim build, then noise, then buyer signals. The evidence is manufacturer-style specifications and listing details from the search results, plus Amazon ratings and purchase counts as listed. No hands-on use is claimed. Because products and prices change, we update this guide when listings change.
COMFEE' 18 Inch Built-in Dishwasher: best for buyers who weigh the rating first
This suits you if your gap is 18 inches and you want the highest rating among the Amazon listings we reviewed. Its 4.3-star rating and 200+ recent purchases are the strongest buyer signals in this group. The drawback is the small rating sample of 45 ratings, so the score is less certain. Our material does not list its capacity or noise level, so confirm those in the product details before you order.
Midea 18 Inch Built-in Dishwasher: best for buyers who want a bigger rating sample
The Midea 18 Inch Built-in Dishwasher has 4.1 stars from 562 ratings on Amazon and 100+ recent purchases. The larger sample makes the score more reliable, even though the average is lower. Its drawback is the lower rating. Like the COMFEE, our material gives no capacity or decibel figure for it, so check those specs yourself.
Other 18-inch options in the results
A Samsung 18-inch top-control built-in tall tub, model DW50T6060US, is listed at 46 dBA in one result. That makes it the option to consider if noise is your top concern. We found no Amazon listing for it in this set, so we don't quote a price or rating for it. An EdgeStar 18-inch built-in is described as a slimline model for smaller kitchens, but the result gives no further dimensions.
Comparison table
| Option | Width | Best for | Amazon rating | Bought past month | Price tier | Buy |
|---|---|---|---|---|---|---|
| COMFEE' 18 Inch Built-in Dishwasher | 18 inch | Buyers who weigh the rating first | 4.3 stars from 45 ratings | 200+ | over $300 | Check on Amazon |
| Midea 18 Inch Built-in Dishwasher | 18 inch | Buyers who want a larger rating sample | 4.1 stars from 562 ratings | 100+ | over $300 | Check on Amazon |
| Samsung 18 in. top-control tall tub (DW50T6060US) | 18 in | Buyers who prioritise a quiet listed noise level | Not listed | Not listed | Not listed |
How to choose
Choose the COMFEE if your gap is 18 inches and you care most about the listing rating. Choose the Midea if you'd rather trust a score built on more ratings. Choose the Samsung model if the 46 dBA figure matters more than an Amazon listing. Skip this group entirely if you have 24-inch space, because these picks are for 18-inch openings. If you have no built-in gap at all, read our best portable 18 inch dishwasher guide. For countertop models sorted by budget, see our top rated countertop dishwasher picks by price range.
FAQ
How big is the smallest dishwasher?
The built-in models in these results are 18 inches wide, the size described for fitting under standard counters. We did not verify a smallest size across every dishwasher type, so measure your cabinet and check the manufacturer's dimensions.
Can I turn my sink into a dishwasher?
Some search results show in-sink dishwasher products, but we did not verify their installation requirements. Check the manufacturer's manual and ask a plumber before you assume your sink can do it.
Is it worth getting a small dishwasher?
For a small household with a fitted gap, usually yes. Whether it pays off depends on how often you run a full load, which is your call rather than something our sources measure.
Conclusion
For most small kitchens with a standard 18-inch gap, start with the COMFEE' 18 Inch Built-in Dishwasher and compare it with the Midea. Confirm fit, depth and noise on the exact model before you buy, because our sources give those numbers for only one listing.
Sources
- Built-in 18-inch dishwasher reviews
- Samsung 18 in. built-in tall tub dishwasher listing
- Miele integrated slimline dishwashers
Our recommendations
We may earn from qualifying purchases. Read our affiliate disclosure.
- 1Check price on Amazon
COMFEE' 18 Inch Built-in Dishwasher
Buyers with an 18-inch gap who weigh the listing rating first
- 2Check price on Amazon
Midea 18 Inch Built-in Dishwasher
Buyers who want a rating based on a larger sample
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