Is 30 inch sink profitable to sell on Amazon United States?

The niche generates $292K/yr across 52 tracked products. 5 of 8 products launched in the last 360 days are still selling. 90-day search growth is -1.3%. Flapen's verdict: Skip it (42/100).

How competitive is the 30 inch sink niche?

29 brands and 44 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 62% of demand.

What do buyers complain about in 30 inch sink?

Top complaints mined from reviews: Rusts/Corrodes, Ease Of Cleaning, Drainage. The return rate is 8.3% — above our launch gate.

When does demand for 30 inch sink peak?

Demand peaks in Oct–Nov; the busiest month runs 1.7× the quietest.

What does it cost to enter the 30 inch sink niche?

Listings span $78.72–$503.33; the average listing price is $232.90 (sweet spot $15–$100). The average incumbent carries 819 reviews — the moat a new listing must climb.

30 inch sink

Skip it

Prices mostly outside the sweet spot ($78.72–$503.33) — this niche doesn't clear our bar today.

Competition

Good40%

top-5 click share — leaders hold, buyers still browse

Brand share

Good62%

top-5 brand share — brands hold most of the demand

Review moat

Good819.38

avg incumbent reviews — the moat a new listing must climb

Market size

Good$292K

$292K/yr · 53K searches

Avg price

Okay$232.90

avg listing price — sweet spot $15–$100

Conversion

Okay2.4%

search→purchase rate — share of searches ending in a sale

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-1.3%

90-day search growth — must beat 0% to launch

Returns

Bad8.3%

return rate — above 5% kills the launch gate

Price range

Bad$78.72–$503.33

cheapest to priciest tracked listing — scored on the share inside $15–$100

Signals High Returns High Price

According to Flapen's Amazon United States niche tracking, 30 inch sink is a $292K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Oct–Nov. Verdict: Skip it — 42/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

30 inch sink market data

Units sold / yr: 1K–1K; avg 0–100/product
Revenue / yr: $233K–$291K; units × avg price
Conversion rate: 2.4%
Avg BSR: #129
Page quality: 0%
Prime: 94%
Sponsored: 96%
Out of stock: 4.6%
Avg brand age: 38 months
Avg seller age: 176 days

Competition & brand share

The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.

Brands

29 rising

Sellers

Top-5 brand share

62%

Top 20: 95%

Top-5 click share

40%

Top 20: 77%

Open market

33%

Kraus32%
SANYCASA10%
Couoko7%
Oxwiser7%
Delironexu5%
Ruvati5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.3% search growth over the last 90 days.

Peak months: Oct, Nov · busiest ÷ quietest = 1.7×

Open Trend

Top 30 inch sink search terms

30 inch undermount kitchen sink19K/yr +0.3%2.0% conv.
30 undermount kitchen sink11K/yr +7.9%2.1% conv.
undermount kitchen sink 30 inch5K/yr +1.3%1.3% conv.
32 inch undermount kitchen sink5K/yr -3.6%1.0% conv.
kraus workstation sink5K/yr -5.5%1.4% conv.
30 sink undermount3K/yr -1.0%2.3% conv.
30 kitchen sink undermount3K/yr +9.9%2.7% conv.
kraus 32 inch undermount kitchen sink2K/yr -75.4%9.5% conv.

All search terms

Top 30 inch sink 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

KRAUS Standart Pro 30 -inch Undermount Single Bowl 16 Gauge Stainless Steel Kitchen Sink KHU100-30

Kraus$297.884.6★6,662 rev

SANYCASA 30 Inch Undermount Kitchen Sink Superior Drain Kitchen Sinks 11 Gauge (3mm) Stainless Steel Single Bowl Integrated Ledge Multifunctional Workstation Set -

SANYCASA$186.204.4★332 rev

KRAUS Kore 32-Inch Undermount Workstation 16 Gauge Single Bowl Stainless Steel Kitchen Sink with Accessories KWU110-32

Kraus$378.674.6★3,651 rev

KRAUS Kore Workstation 30-inch Undermount 16 Gauge Stainless Steel Kitchen Sink Single Bowl Kitchen Sink with Accessories KWU110-30

Kraus$396.704.6★3,651 rev

Couoko 30 Inch Undermount Stainless Steel Kitchen Sink

Couoko$166.904.6★69 rev

Newest

by launch date

32 Inch Undermount Kitchen Sink Banaapp 32x18 Kitchen Sink Undermount Single Bowl Undermount Sink 18 Gauge 304 Stainless Steel Kitchen Sink with Accessories

banaapp$116.5726 rev

2mo ago

30 Inch Undermount Kitchen Sink Stainless Steel Single Bowl Flush Rim 2.0cm Edge & 1.0mm Wall Brushed Finish with Bottom Grid and Drain Included

MilleLoom$78.722 rev

3mo ago

30 Inch Undermount Kitchen Sink 16 Gauge Stainless Steel Ledge Workstation Sink Round Corners Deep Single Bowl Kitchen Sinks with Accessories 30x19x10

Oxwiser$187.5788 rev

10mo ago

30 Inch Drop In Kitchen Sink Stainless Steel Single Bowl Undermount Kitchen Sinks with Faucet Large Single Bowl Farmhouse Workstation Sinks (Black 3018) (Black 30 * 18in)

QuietBoy$156.6535 rev

10mo ago

Suncano 30 Inch Undermount Kitchen Sink Workstation Stainless Steel Handmade 10Deep Large Single Bowl Undermount Sink 30x19 with Accessories (Brushed)

suncano$240.5685 rev

1y ago

What buyers say about 30 inch sink

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall25%

“Excellent quality”

Value For Money9%

“Amazing value”

Size-Overall7%

“Perfect fit”

Design-Overall6%

“It looks nice”

Assembly/Installation6%

“had no problem installing”

Ease Of Cleaning5%

“Easy to clean”

Durability4%

“Its very durable”

Weight Heavy3%

“Heavy duty”

Strength3%

“Very sturdy”

Add-Ons/Attachments3%

“Accessories are wonderful”

What buyers complain about

Rusts/Corrodes16%

“Small rust spots after a year”

Ease Of Cleaning13%

“Impossible to clean”

Drainage11%

“Slow to drain”

Quality-Overall6%

“Quality is poor”

Ease Of Use5%

“however I am having difficulty with it”

Assembly/Installation4%

“within 3.5 seconds he vetoed the installation”

Material Quality4%

“feels like cheap plastic”

Size-Overall3%

“The accessories do not fit”

Value For Money3%

“the faucet you get is cheap”

Defective Material/Parts2%

“Useful product, defective accessories”

Top return reasons

Size-Overall66%

Value For Money7%

Advertised Vs Actual Product5%

Defective Material/Parts4%

Drainage3%

Color3%

Material Quality2%

Assembly/Installation2%

Quality-Overall1%

Product Condition1%

Common questions

Is 30 inch sink profitable to sell on Amazon United States?: The niche generates $292K/yr across 52 tracked products. 5 of 8 products launched in the last 360 days are still selling. 90-day search growth is -1.3%. Flapen's verdict: Skip it (42/100).
How competitive is the 30 inch sink niche?: 29 brands and 44 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 62% of demand.
What do buyers complain about in 30 inch sink?: Top complaints mined from reviews: Rusts/Corrodes, Ease Of Cleaning, Drainage. The return rate is 8.3% — above our launch gate.
When does demand for 30 inch sink peak?: Demand peaks in Oct–Nov; the busiest month runs 1.7× the quietest.
What does it cost to enter the 30 inch sink niche?: Listings span $78.72–$503.33; the average listing price is $232.90 (sweet spot $15–$100). The average incumbent carries 819 reviews — the moat a new listing must climb.