---
title: "Undermount Sink Support — $390K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/undermount-sink-support"
last_updated: "2026-08-07T14:08:10.076Z"
locale: en
meta:
description: "Niche score 59/100 · $390K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $390K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Undermount Sink Support — $390K/yr Amazon US Niche (2026) - Flapen"
---
# **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.
Market size 55Growth 30Conversion 74Competition 76Returns 23Price range 53Avg price 95Brand share 88Review moat 94Quality gap 45
**Avg price**
**Incredible****$36.84**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****125**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Great****47%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Conversion**
**Good****6.9%**
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**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+4.3%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****5.5%**
return rate — above 5% kills the launch gate
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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**
**32**
**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.
4K3KHoliday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/undermount-sink-support/trend)
## **Top undermount sink support search terms**
- **undermount sink brackets**58K/yr+4.4%6.5% conv. - **undermount sink support**31K/yr+22.8%5.1% conv. - **under mount sink brackets**9K/yr-3.0%5.6% conv. - **sink support**7K/yr-8.8%5.0% conv. - **undermount sink bracket**6K/yr+13.9%5.2% conv. - **undermount sink support kit**5K/yr+9.3%5.1% conv. - **sink brackets**5K/yr-5.9%4.4% conv. - **undermount sink mounting brackets**4K/yr+66.2%3.5% conv. - **kitchen sink installation parts**7K/yr-35.3%0.6% conv. - **undermount sink support bracket**3K/yr+84.3%3.9% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/undermount-sink-support/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.
0%3%$12K6%$23K9%$35K12%$47K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Undermount Sink Brackets Undermount Sink Repair kit Best undermount Sink Support Undermount Kitchen Sink Brackets for Fallen Sink Support.(Patent)**MY RUSTIC**$33.05**4.7★379 rev](https://www.amazon.com/dp/B0C6TB11NH) [2**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**$34.57**4.6★44 rev](https://www.amazon.com/dp/B0FB2ZZ6VL) [3**TYESTAND CPT-4 Undermount Sink Supports Brackets Adjustable Stainless Steel Installation Kit for Heavy Duty Undermount Kitchen Sink (28-39.4 inches71-100cm)**TYESTAND**$48.28**4.6★205 rev](https://www.amazon.com/dp/B0CTBTSXXV) [4**Snowtaros Undermount Sink Brackets Stainless Steel 2 Pack**Snowtaros**$33.01**4.5★153 rev](https://www.amazon.com/dp/B0CSSP24LC) [5**Qualward Undermount Sink Brackets Adjustable Undermount Sink Support Stainless Steel Installation Kit for Undermount Kitchen Sink Adjustable Support Pole (29-39.5 inches)**Qualward**$44.10**4.8★58 rev](https://www.amazon.com/dp/B0DGL25XRM)
**~~View all top sellers →~~**
### **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**$27.18**4 rev3mo ago](https://www.amazon.com/dp/B0GHQWF9GY) [**Foozet Undermount Sink Brackets 28-39.5Adjustable Undermount Sink Support Brackets Stainless Steel Support Pole for Kitchen Horizontal Under mount Sink Repair Kit**Foozet**$37.68**10 rev6mo ago](https://www.amazon.com/dp/B0GF7RV4JK) [**Undermount Sink Brackets Heavy Duty Adjustable Undermount Sink Support for Kitchen & Bathroom No Drill Sink Mounting Support Brackets Strong Load Bearing Design**Dyskolos**$48.90**4 rev7mo ago](https://www.amazon.com/dp/B0G26MBPP7) [**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**$36.56**26 rev10mo ago](https://www.amazon.com/dp/B0FR8BPYYS) [**ANGELBECKE Undermount Sink Support Brackets Adjustable Stainless Steel Brackets & Support Pole for Heavy Duty Undermount Kitchen Sink 28-37inches**ANGELBECKE**$39.57**30 rev11mo ago](https://www.amazon.com/dp/B0F93Q7CYB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$27.18**4.8★**▲ 273%**](https://www.amazon.com/dp/B0GHQWF9GY) [**Foozet Undermount Sink Brackets 28-39.5Adjustable Undermount Sink Support Brackets Stainless Steel Support Pole for Kitchen Horizontal Under mount Sink Repair Kit**Foozet**$37.68**5.0★**▲ 222%**](https://www.amazon.com/dp/B0GF7RV4JK) [**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**$34.57**4.6★**▲ 88%**](https://www.amazon.com/dp/B0FB2ZZ6VL) [**Undermount Sink Brackets Heavy Duty Adjustable Undermount Sink Support for Kitchen & Bathroom No Drill Sink Mounting Support Brackets Strong Load Bearing Design**Dyskolos**$48.90**5.0★**▲ 84%**](https://www.amazon.com/dp/B0G26MBPP7) [**Serene Valley Undermount Sink Clips Sink Brackets and Supports Undermount Kitchen Sink Clips NSA104 - Heavy-Duty 10pcs Kit**Serene Valley**$12.88**4.5★**▲ 75%**](https://www.amazon.com/dp/B08F44JKGL)
**~~View all trending →~~**
## **What buyers say about undermount sink support**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**22%
*“Easy to assemble”*
**Quality-Overall**15%
*“Very good quality, easy to install, recommended”*
**Strength**14%
*“Strong and sturdy, easy to install”*
**Ease Of Use**8%
*“Easy to use”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Efficiency**5%
*“Works great”*
**Value For Money**5%
*“Best value”*
**Durability**4%
*“Pretty durable”*
**Size-Overall**2%
*“Good fit”*
**Design-Overall**2%
*“Greatest invention ever”*
### **What buyers complain about **
**Quality-Overall**13%
*“Low quality”*
**Strength**6%
*“Additionally, the bars themselves are very weak due to thin walls”*
**Ease Of Use**6%
*“That was the hardest part”*
**Advertised Vs Actual Product**6%
*“didn't like the false description”*
**Value For Money**5%
*“Not worth the money”*
**Adhesion/Stickiness**5%
*“Loctite & Gorilla adhesives failed”*
**Rusts/Corrodes**4%
*“Our sink had come loose after one of the original hanger clips had rusted through”*
**Defective Material/Parts**4%
*“Project failure”*
**Durability**4%
*“wont last”*
**Size-Overall**4%
*“plumbers didnt use them as they didnt fit”*
### **Top return reasons **
**Size-Overall**47%
**Compatibility-Overall**9%
**Functionality-Overall**9%
**Defective Material/Parts**8%
**Advertised Vs Actual Product**3%
**Assembly/Installation**3%
**Value For Money**3%
**Strength**2%
**Drainage**2%
**Mechanism Issues**2%
## **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.
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