Is undermount sink support profitable to sell on Amazon United States?

The niche generates $390K/yr across 37 tracked products. 1 of 11 products launched in the last 360 days are still selling. 90-day search growth is +4.3%. Flapen's verdict: Worth a look (59/100).

How competitive is the undermount sink support niche?

29 brands and 32 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 47% of demand.

What do buyers complain about in undermount sink support?

Top complaints mined from reviews: Quality-Overall, Strength, Ease Of Use. The return rate is 5.5% — above our launch gate.

When does demand for undermount sink support peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the undermount sink support niche?

Listings span $8.92–$167.97; the average listing price is $36.84 (sweet spot $15–$100). The average incumbent carries 125 reviews — the moat a new listing must climb.

undermount sink support

Worth a look

Shows a sweet-spot price point ($36.84 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Incredible$36.84

avg listing price — sweet spot $15–$100

Review moat

Great125

avg incumbent reviews — the moat a new listing must climb

Brand share

Great47%

top-5 brand share — no brand owns this niche

Competition

Great39%

top-5 click share — an open shelf

Conversion

Good6.9%

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

Market size

Good$390K

$390K/yr · 154K searches

Price range

Good$8.92–$167.97

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+4.3%

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

Returns

Bad5.5%

return rate — above 5% kills the launch gate

Signals No Dominant Brand Low Review Barrier High Returns

According to Flapen's Amazon United States niche tracking, undermount sink support is a $390K/yr Amazon United States market (154K searches/yr). The top 5 brands hold 47% of demand. Verdict: Worth a look — 59/100.

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

undermount sink support market data

Units sold / yr: 10K–13K; avg 250–500/product
Revenue / yr: $368K–$461K; units × avg price
Conversion rate: 6.9%
Avg BSR: #247
Page quality: 0%
Prime: 100%
Sponsored: 97%
Out of stock: 3.1%
Avg brand age: 36 months
Avg seller age: 179 days

Competition & brand share

Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.

Brands

29 rising

Sellers

Top-5 brand share

47%

Top 20: 93%

Top-5 click share

39%

Top 20: 84%

Open market

48%

MY RUSTIC13%
BSTSLL13%
Homydom8%
TYESTAND7%
Snowtaros5%
Qualward5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +4.3% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top undermount sink support search terms

undermount sink brackets58K/yr +4.4%6.5% conv.
undermount sink support31K/yr +22.8%5.1% conv.
under mount sink brackets9K/yr -3.0%5.6% conv.
sink support7K/yr -8.8%5.0% conv.
undermount sink bracket6K/yr +13.9%5.2% conv.
undermount sink support kit5K/yr +9.3%5.1% conv.
sink brackets5K/yr -5.9%4.4% conv.
undermount sink mounting brackets4K/yr +66.2%3.5% conv.
kitchen sink installation parts7K/yr -35.3%0.6% conv.
undermount sink support bracket3K/yr +84.3%3.9% conv.

All search terms

Top undermount sink support 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

Undermount Sink Brackets Undermount Sink Repair kit Best undermount Sink Support Undermount Kitchen Sink Brackets for Fallen Sink Support.(Patent)

MY RUSTIC$33.054.7★379 rev

Heavy Duty Undermount Sink Brackets & Kitchen Sink Installation Parts Kit - 800 lbs Capacity Adjustable Carbon Steel Support Horizontal Space-Saving Design for Kitchen Sinks (71-100cm)

BSTSLL$34.574.6★44 rev

TYESTAND CPT-4 Undermount Sink Supports Brackets Adjustable Stainless Steel Installation Kit for Heavy Duty Undermount Kitchen Sink (28-39.4 inches71-100cm)

TYESTAND$48.284.6★205 rev

Snowtaros Undermount Sink Brackets Stainless Steel 2 Pack

Snowtaros$33.014.5★153 rev

Qualward Undermount Sink Brackets Adjustable Undermount Sink Support Stainless Steel Installation Kit for Undermount Kitchen Sink Adjustable Support Pole (29-39.5 inches)

Qualward$44.104.8★58 rev

Newest

by launch date

Undermount Sink Brackets Stainless Steel Undermount Sink Support Brackets 17.8-31 Adjustable Support Pole Sink Brackets Repair Kit for Kitchen Bathroom (2 Pack)

Liamoy$27.184 rev

3mo ago

Foozet Undermount Sink Brackets 28-39.5Adjustable Undermount Sink Support Brackets Stainless Steel Support Pole for Kitchen Horizontal Under mount Sink Repair Kit

Foozet$37.6810 rev

6mo ago

Undermount Sink Brackets Heavy Duty Adjustable Undermount Sink Support for Kitchen & Bathroom No Drill Sink Mounting Support Brackets Strong Load Bearing Design

Dyskolos$48.904 rev

7mo ago

QruiLanTu Undermount Kitchen Sink Bracket Space Saving Upright Sink Repair Kit with Non-Slip Shock Absorbing Pads Stainless Steel Adjustable Bracket for Kitchen Bathroom and Outdoor Sink

QruiLanTu$36.5626 rev

10mo ago

ANGELBECKE Undermount Sink Support Brackets Adjustable Stainless Steel Brackets & Support Pole for Heavy Duty Undermount Kitchen Sink 28-37inches

ANGELBECKE$39.5730 rev

11mo ago

What buyers say about undermount sink support

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

What buyers love

Assembly/Installation22%

“Easy to assemble”

Quality-Overall15%

“Very good quality, easy to install, recommended”

Strength14%

“Strong and sturdy, easy to install”

Ease Of Use8%

“Easy to use”

Advertised Vs Actual Product7%

“As advertised”

Efficiency5%

“Works great”

Value For Money5%

“Best value”

Durability4%

“Pretty durable”

Size-Overall2%

“Good fit”

Design-Overall2%

“Greatest invention ever”

What buyers complain about

Quality-Overall13%

“Low quality”

Strength6%

“Additionally, the bars themselves are very weak due to thin walls”

Ease Of Use6%

“That was the hardest part”

Advertised Vs Actual Product6%

“didn't like the false description”

Value For Money5%

“Not worth the money”

Adhesion/Stickiness5%

“Loctite & Gorilla adhesives failed”

Rusts/Corrodes4%

“Our sink had come loose after one of the original hanger clips had rusted through”

Defective Material/Parts4%

“Project failure”

Durability4%

“wont last”

Size-Overall4%

“plumbers didnt use them as they didnt fit”

Top return reasons

Size-Overall47%

Compatibility-Overall9%

Functionality-Overall9%

Defective Material/Parts8%

Advertised Vs Actual Product3%

Assembly/Installation3%

Value For Money3%

Strength2%

Drainage2%

Mechanism Issues2%

Common questions

Is undermount sink support profitable to sell on Amazon United States?: The niche generates $390K/yr across 37 tracked products. 1 of 11 products launched in the last 360 days are still selling. 90-day search growth is +4.3%. Flapen's verdict: Worth a look (59/100).
How competitive is the undermount sink support niche?: 29 brands and 32 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 47% of demand.
What do buyers complain about in undermount sink support?: Top complaints mined from reviews: Quality-Overall, Strength, Ease Of Use. The return rate is 5.5% — above our launch gate.
When does demand for undermount sink support peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the undermount sink support niche?: Listings span $8.92–$167.97; the average listing price is $36.84 (sweet spot $15–$100). The average incumbent carries 125 reviews — the moat a new listing must climb.