18 inch dishwasher
Skip itPricing outside the sweet spot ($501.11 avg) — this niche doesn't clear our bar today.
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Review moat
Great335.73avg incumbent reviews — the moat a new listing must climb
Market size
Great$1.0M$1.0M/yr · 141K searches
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Growth
Okay+0.9%90-day search growth — must beat 0% to launch
Returns
Bad6.1%return rate — above 5% kills the launch gate
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
Brand share
Bad93%top-5 brand share — brand-locked demand
Avg price
Bad$501.11avg listing price — sweet spot $15–$100
Price range
Bad$360.58–$767.74cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 18 inch dishwasher is a $1.0M/yr Amazon United States market (141K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Nov. Verdict: Skip it — 38/100.
Data updated Jul 5, 2026 · scored weekly · How we score niches
18 inch dishwasher market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $1.0M–$1.3M
- units × avg price
- Conversion rate
- 1.5%
- Avg BSR
- #15
- Page quality
- 0%
- Prime
- 87%
- Sponsored
- 60%
- Out of stock
- 0.0%
- Avg brand age
- 38 months
- Avg seller age
- 204 days
Competition & brand share
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.Brands
9 falling
Sellers
29
Top-5 brand share
93%
Top 20: 100%
Top-5 click share
67%
Top 20: 100%
Open market
4%
- Midea40%
- Honeywell34%
- EdgeStar10%
- Sharp7%
- Frigidaire3%
- SPT2%
- Open — no brand owns it (3 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 108 weeks — +0.9% search growth over the last 90 days.Peak months: Nov · busiest ÷ quietest = 1.6×
Top 18 inch dishwasher search terms
- 18 inch dishwasher53K/yr
- 18 dishwasher31K/yr
- 18 dishwasher stainless steel7K/yr
- 18 inch dishwasher stainless steel6K/yr
- dishwasher 18 inch7K/yr
- 18 in dishwasher6K/yr
- 18in dishwasher4K/yr
- 18 inch dishwasher built in8K/yr
- dishwasher 18 inch wide3K/yr
- 18 inch dish washer2K/yr
Top 18 inch dishwasher products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Midea 18 Inch Built-in Dishwasher Slim Space-Saving Design with 8 Place Settings 6 Washing Programs & Stainless Steel Tub Energy Star Certified Dishwasher with Heated Dry & High Temp Wash Silver
Midea$437.054.1★524 rev
Honeywell 18-Inch Dishwasher with 8 Place Settings 6 Washing Programs Stainless Steel Tub UL & Energy Star Certified Stainless Finish
Honeywell$423.184.0★304 rev
Midea 18 Inch Built-in Dishwasher 8 Place Settings Stainless Steel Tub
Midea$398.554.1★524 rev
Honeywell 18 Inch Dishwasher with 8 Place settings 6 Washing Programs Stainless Steel Tub UL/Energy Star- Black
Honeywell$360.584.2★119 rev
Midea 18 Inch Built-in Dishwasher 8 Place Settings Stainless Steel Tub
Midea$399.224.1★524 rev
Newest
by launch date
COMFEE 18 Inch Built-in Dishwasher Energy Star & NSF Stainless Steel Tub
COMFEE'$423.983 rev
Sharp SDW4523MS 18-Inch Built-In Dishwasher Stainless Steel 47 dB Third Rack 8 Place Settings 6 Wash Cycles
Sharp$726.695 rev
KoolMore 18 in. ADA Panel Ready with 8 Place Settings 52 DB Dishwasher in Stainless-Steel UL and Energy Star Certified (KM-DW1852-PR)
KoolMore$732.6510 rev
Midea 18 Inch Built-in Dishwasher Slim Space-Saving Design with 8 Place Settings 6 Washing Programs & Stainless Steel Tub Energy Star Certified Dishwasher with Heated Dry & High Temp Wash Silver
Midea$437.05524 rev
Midea 18 Inch Built-in Dishwasher 8 Place Settings Stainless Steel Tub
Midea$398.55524 rev
Trending
90-day click momentumCOMFEE 18 Inch Built-in Dishwasher Energy Star & NSF Stainless Steel Tub
COMFEE'$423.984.4★
FRIGIDAIRE 18 in. ADA Compact Front Control Dishwasher in Stainless Steel with Dual Spray Arms 52 dBA includes room-of-choice delivery
Frigidaire$767.744.2★
Sharp SDW4523MS 18-Inch Built-In Dishwasher Stainless Steel 47 dB Third Rack 8 Place Settings 6 Wash Cycles
Sharp$726.694.7★
Midea 18 Inch Built-in Dishwasher 8 Place Settings Stainless Steel Tub
Midea$399.224.1★
Midea 18 Inch Built-in Dishwasher 8 Place Settings Stainless Steel Tub
Midea$398.554.1★
What buyers say about 18 inch dishwasher
What buyers praise and complain about, mined from review topics.What buyers love
“Great product cleans very well very much worth the money”
“Quiet and Nice”
“It fits”
“reasonably priced”
“It is working fine with no complaints”
“It was not leaking”
“Item is as advertised so far”
“has the capacity for my larger items”
“easy to use”
“So far it has been reliable”
What buyers complain about
“there was something wrong with the pump leaking”
“Garbage”
“Painful installation”
“It never really gets stuff clean”
“stopped working at the beginning of June”
“would not drain”
“most of them are substantially more expensive then a typical 24”
“The manual. which was painfully confusing”
“Wrong description”
“It does not have a power button”
Top return reasons
Common questions
- Is 18 inch dishwasher profitable to sell on Amazon United States?
- The niche generates $1.0M/yr across 15 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +0.9%. Flapen's verdict: Skip it (38/100).
- How competitive is the 18 inch dishwasher niche?
- 9 brands and 29 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 93% of demand.
- What do buyers complain about in 18 inch dishwasher?
- Top complaints mined from reviews: Leak-Proof, Quality-Overall, Assembly/Installation. The return rate is 6.1% — above our launch gate.
- When does demand for 18 inch dishwasher peak?
- Demand peaks in Nov; the busiest month runs 1.6× the quietest.
- What does it cost to enter the 18 inch dishwasher niche?
- Listings span $360.58–$767.74; the average listing price is $501.11 (sweet spot $15–$100). The average incumbent carries 336 reviews — the moat a new listing must climb.