---
title: "Black Door Lock — $52K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/black-door-lock"
last_updated: "2026-08-08T18:14:56.273Z"
locale: en
meta:
description: "Niche score 47/100 · $52K/yr market · 29K searches/yr · $33.96 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $52K/yr market · 29K searches/yr · $33.96 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Black Door Lock — $52K/yr Amazon US Niche (2026) - Flapen"
---
# **black door lock**
**Skip it**
A small market ($52K/yr) — this niche doesn't clear our bar today.
Market size 13Growth 34Conversion 61Competition 61Returns 32Price range 79Avg price 95Brand share 65Review moat 37Quality gap 47
**Avg price**
**Incredible****$33.96**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.06–$116.97**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****66%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****5.3%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,786.61**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+7.5%**
90-day search growth — must beat 0% to launch
**Returns**
**Okay****4.4%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$52K**
$52K/yr · 29K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, black door lock is a $52K/yr Amazon United States market (29K searches/yr). The top 5 brands hold 66% of demand. Verdict: Skip it — 47/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **black door lock market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$51K–$68K**
- units × avg price
- **Conversion rate**
- **5.3%**
- **Avg BSR**
- **#38**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **94%**
- **Out of stock**
- **2.5%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▼falling
**Sellers**
**48**
**Top-5 brand share**
**66%**
Top 20: 99%
**Top-5 click share**
**48%**
Top 20: 85%
**Open market**
**28%**
- Estmoon17% - Amazon Basics14% - Kwikset12% - Lanwandeng11% - BESTTEN11% - Cielsa Dawn6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +7.5% search growth over the last 90 days.
700500Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/black-door-lock/trend)
## **Top black door lock search terms**
- **black door lock**13K/yr-0.7%3.9% conv. - **door lock black**8K/yr+8.3%3.3% conv. - **black door locks**5K/yr+22.1%1.9% conv. - **black door knob with key**4K/yr+19.5%9.1% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/black-door-lock/search-terms)
## **Top black door lock 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%$2K6%$3K9%$5K12%$6K1001K10K100K 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**Lanwandeng Matte Black Door Knobs with Lock and Keys Interior/Exterior Door Knob for Bedroom or Bathroom Entry Door Lock**Lanwandeng**$10.32**4.3★1,914 rev](https://www.amazon.com/dp/B099WLM1VT) [2**Estmoon Door Lock Matte Black Door Knob with Lock Heavy Duty Keyed Front Door Handle Exterior Lockset Entrance Exterior Door Knob for Bedroom Bathroom Front Door Office 1 Pack**Estmoon**$19.13**4.4★2,159 rev](https://www.amazon.com/dp/B0DJQM5F7Q) [3**BESTTEN Keyed Entry Door Knob Heavy Duty Entrance Door Lock Standard Ball All Metal Matte Black**BESTTEN**$11.36**4.4★11,408 rev](https://www.amazon.com/dp/B08ZBZFGL1) [4**Amazon Basics Exterior Door Knob with Key Lock and Deadbolt Keyed Alike Coastal Matte Black**Amazon Basics**$17.84**4.3★7,100 rev](https://www.amazon.com/dp/B07GF58FQ3) [5**Kwikset Casey Entry Door Handle with Lock and Key Secure Keyed Reversible Lever Exterior For Front Entrance and Bedrooms Matte Black Pick Resistant Smartkey Rekey Security and Microban**Kwikset**$28.93**4.5★1,923 rev](https://www.amazon.com/dp/B096CKJGX3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Camtek Exterior Door Lock Set with Deadbolt Door Locks for Front Door with Single Cylinder Deadbolt Lock Matte Black Door Handle with Lock and Key for Front Door 3 Pack (All Same Keyed Alike)**Camtek**$55.12**109 rev7mo ago](https://www.amazon.com/dp/B0G57V41B3) [**Kwikset Maven Front Door Lock Handle and Deadbolt Set Entry Handleset Round Exterior with Interior Door Knob Secure Locking Deadbolt Matte Black with Microban Protection**Kwikset**$37.91**365 rev1y ago](https://www.amazon.com/dp/B0DPXV2P57) [**Sopoby Matte Black Front Door Handle and Single Cylinder Deadbolt Combo Set Black Exterior Door Lever Heavy Duty Modern Front Door Lock Set Reversible for Right & Left**Sopoby**$39.64**278 rev1y ago](https://www.amazon.com/dp/B0DNSPVCVQ) [**HOSOM Door Knob with Lock and Key Keyed Entry Door Knob Exterior and Interior Door Lock for Front Door Commercial and Residential Area Entry Door Handle for Bedroom and Bathroom Matte Black**HOSOM**$10.06**358 rev1y ago](https://www.amazon.com/dp/B0DM99TFLJ) [**YYTDZSW Door Handles Interior Door Knobs Interior Black Door Handle with Reversible Lever Keyed Alike Door Lock Sets for Bedroom 5 Packs Heavy Duty Door Lock Sets Matte Black**YYTDZSW**$62.35**324 rev1y ago](https://www.amazon.com/dp/B0DJSCY5CY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Camtek Exterior Door Lock Set with Deadbolt Door Locks for Front Door with Single Cylinder Deadbolt Lock Matte Black Door Handle with Lock and Key for Front Door 3 Pack (All Same Keyed Alike)**Camtek**$55.12**4.4★**▲ 207%**](https://www.amazon.com/dp/B0G57V41B3) [**Estmoon 2 Pack Privacy Door Levers Door Handle Matte Black Interior Door Knobs Keyless Door Locks for Bedroom or Bathroom Left or Right Handing Levers**Estmoon**$27.68**4.4★**▲ 159%**](https://www.amazon.com/dp/B0BGXNJSC4) [**Kwikset Maven Front Door Lock Handle and Deadbolt Set Entry Handleset Round Exterior with Interior Door Knob Secure Locking Deadbolt Matte Black with Microban Protection**Kwikset**$37.91**4.5★**▲ 108%**](https://www.amazon.com/dp/B0DPXV2P57) [**Estmoon Door Lock Matte Black Door Knob with Lock Heavy Duty Keyed Front Door Handle Exterior Lockset Entrance Exterior Door Knob for Bedroom Bathroom Front Door Office 1 Pack**Estmoon**$19.13**4.4★**▲ 79%**](https://www.amazon.com/dp/B0DJQM5F7Q) [**Home Security Door Reinforcement Lock - Child Proof High Security Door Lock Front Door Locks for Kids Safety Withstand 800 lbs Top Door Latch Lock Flip Door Guardian for Inward Swinging Inside Door**EverPlus**$10.10**4.7★**▲ 61%**](https://www.amazon.com/dp/B0BVYX7T2N)
**~~View all trending →~~**
## **What buyers say about black door lock**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**22%
*“easy assembly”*
**Quality-Overall**15%
*“they are quality knobs”*
**Locking Mechanism**15%
*“The lock works smoothly”*
**Value For Money**9%
*“they are affordable”*
**Strength**5%
*“Sturdy and easy to install”*
**Design-Overall**4%
*“Nice Design”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Ease Of Use**3%
*“Ease of use”*
**Security**3%
*“Safety and security”*
**Efficiency**2%
*“Effective”*
### **What buyers complain about **
**Quality-Overall**22%
*“Bad quality”*
**Locking Mechanism**15%
*“Lock is horrible”*
**Durability**13%
*“Broke within a week”*
**Assembly/Installation**7%
*“hard to install”*
**Size-Overall**6%
*“It was too big”*
**Functionality-Overall**5%
*“DOESNT WORK”*
**Value For Money**3%
*“half the price”*
**Instructions/User Manual/Troubleshooting**2%
*“The instructions were not very good”*
**Paint Quality**2%
*“Peeling paint”*
**Strength**2%
*“a bit flimsy”*
### **Top return reasons **
**Size-Overall**30%
**Locking Mechanism**13%
**Defective Material/Parts**9%
**Functionality-Overall**9%
**Compatibility-Overall**7%
**Mechanism Issues**7%
**Color**4%
**Value For Money**4%
**Assembly/Installation**3%
**Advertised Vs Actual Product**3%
## **Common questions**
- **Is black door lock profitable to sell on Amazon United States?**
- The niche generates $52K/yr across 33 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +7.5%. Flapen's verdict: Skip it (47/100).
- **How competitive is the black door lock niche?**
- 21 brands and 48 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 66% of demand.
- **What do buyers complain about in black door lock?**
- Top complaints mined from reviews: Quality-Overall, Locking Mechanism, Durability. The return rate is 4.4%.
- **When does demand for black door lock peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the black door lock niche?**
- Listings span $10.06–$116.97; the average listing price is $33.96 (sweet spot $15–$100). The average incumbent carries 2,787 reviews — the moat a new listing must climb.
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