---
title: "Double Cylinder Deadbolt — $121K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/double-cylinder-deadbolt"
last_updated: "2026-08-06T16:20:32.706Z"
locale: en
meta:
description: "Niche score 51/100 · $121K/yr market · 116K searches/yr · $28.13 avg price. High returns (5.5%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $121K/yr market · 116K searches/yr · $28.13 avg price. High returns (5.5%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Double Cylinder Deadbolt — $121K/yr Amazon US Niche (2026) - Flapen"
---
# **double cylinder deadbolt**
**Worth a look**
Shows a sweet-spot price point ($28.13 avg), but high returns (5.5%) keeps it on the watch list.
Market size 28Growth 39Conversion 46Competition 67Returns 23Price range 81Avg price 95Brand share 44Review moat 58Quality gap 75
**Avg price**
**Incredible****$28.13**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$13.54–$116.27**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Good****1,176.83**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.7%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+11.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$121K**
$121K/yr · 116K searches
**Returns**
**Bad****5.5%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, double cylinder deadbolt is a $121K/yr Amazon United States market (116K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **double cylinder deadbolt market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **$113K–$141K**
- units × avg price
- **Conversion rate**
- **3.7%**
- **Avg BSR**
- **#309**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **65%**
- **Out of stock**
- **7.3%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **148 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▲rising
**Sellers**
**51**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**45%**
Top 20: 83%
**Open market**
**18%**
- Rulart22% - Probrico20% - SCHLAGE16% - Gobrico15% - Eiqikayo6% - Copper Creek4% - Open — no brand owns it (12 brands, 18%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.3% search growth over the last 90 days.
3K2KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/double-cylinder-deadbolt/trend)
## **Top double cylinder deadbolt search terms**
- **double cylinder deadbolt**22K/yr+12.6%2.3% conv. - **double keyed deadbolt lock**19K/yr-4.9%4.1% conv. - **double cylinder deadbolt lock set**12K/yr+9.4%2.0% conv. - **double sided deadbolt lock**8K/yr+1.8%4.3% conv. - **double deadbolt lock set**8K/yr+11.9%2.6% conv. - **double cylinder deadbolt locks**15K/yr+30.1%2.1% conv. - **deadbolt lock keyed both sides**5K/yr+80.7%3.2% conv. - **double sided deadbolt**6K/yr+39.5%3.6% conv. - **double key deadbolt**5K/yr+14.5%4.5% conv. - **double cylinder deadbolt lock**4K/yr+19.9%2.8% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/double-cylinder-deadbolt/search-terms)
## **Top double cylinder deadbolt 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%4%$5K8%$10K12%$15K16%$19K101001K10K 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**Double keyed Deadbolt Lock - Keyed on Both Sides 2-Way Adjustable Cylinder Deadbolt (Privacy/Passage) Satin Stainless Steel(Black Double Side)**Rulart**$17.72**4.4★2,302 rev](https://www.amazon.com/dp/B0C5XFT5JZ) [2**Rulart Double keyed Deadbolt Lock - Keyed on Both Sides 2-Way Adjustable Cylinder Deadbolt (Privacy/Passage) Satin Stainless Steel (Silver Single Cylinder) (Silver Double Side)**Rulart**$17.24**4.4★2,302 rev](https://www.amazon.com/dp/B07MQX72WN) [3**Gobrico Keyed Alike Double Cylinder Deadbolts Door Locks Satin Nickel Keyd Both Sides Door Locksets for Exterior Interior Door 2 Pack**Gobrico**$30.83**4.3★1,330 rev](https://www.amazon.com/dp/B06WD173TN) [4**SCHLAGE B62N622 Deadbolt Keyed 2 Sides Matte Black**SCHLAGE**$40.90**4.6★6,024 rev](https://www.amazon.com/dp/B0030ZWF1Y) [5**Probrico Double Cylinder Deabolt 3 Keys Interior& Exterior Door Hardware for Entrance Lock and Front Gate Flat Black 1 Pack**Probrico**$18.62**4.4★714 rev](https://www.amazon.com/dp/B0B6C6T5LZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Probrico Keyed Alike Double Cylinder Deadbolts Black 2 Pack**Probrico**$37.53**29 rev9mo ago](https://www.amazon.com/dp/B0FWQMTBW8) [**Eiqikayo Silver Steel Double-Head Cylinder Deadbolt Lock- High Security Anti-Kick Door Lock Easy to Install Fits Standard Doors for Home Apartment and Office Security**Eiqikayo**$16.76**58 rev1y ago](https://www.amazon.com/dp/B0DT4NLDSZ) [**Brotima 1 Pack Keyed Alike Door Lock Set with Deadbolt Satin Nickel Finished Double Cylinder Deadbolt Lock Set Security Round Style Entry Door Knobs**Brotima**$26.46**94 rev1y ago](https://www.amazon.com/dp/B0DP9CGNPZ) [**Forliggio All-new Deadbolt Door Lock Set ANSI/BHMA Grade 3 Enhanced Security Entry Dead Bolt Level Door Locks for Exterior Front Doors Black**Forliggio**$13.67**496 rev1y ago](https://www.amazon.com/dp/B0DDQLB6X9) [**Probrico 1 Pack Black Double Cylinder Deadbolt Lock Set Round Keyed Both Side Door Lock for Exterior and Interior Door**Probrico**$18.33**393 rev2y ago](https://www.amazon.com/dp/B0D1XZKPGY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Probrico Keyed Alike Double Cylinder Deadbolts Black 2 Pack**Probrico**$37.53**4.3★**▲ 177%**](https://www.amazon.com/dp/B0FWQMTBW8) [**SCHLAGE B62N619 Deadbolt Keyed 2 Sides Satin Nickel**SCHLAGE**$47.57**4.6★**▲ 72%**](https://www.amazon.com/dp/B0030ZXWJ8) [**Probrico 1 Pack Black Double Cylinder Deadbolt Lock Set Round Keyed Both Side Door Lock for Exterior and Interior Door**Probrico**$18.33**4.3★**▲ 55%**](https://www.amazon.com/dp/B0D1XZKPGY) [**Eiqikayo Silver Steel Double-Head Cylinder Deadbolt Lock- High Security Anti-Kick Door Lock Easy to Install Fits Standard Doors for Home Apartment and Office Security**Eiqikayo**$16.76**4.2★**▲ 49%**](https://www.amazon.com/dp/B0DT4NLDSZ) [**Copper Creek DB2420SS Double Cylinder Deadbolt in SS Finish**Copper Creek**$14.93**4.3★**▲ 43%**](https://www.amazon.com/dp/B003FII2D6)
**~~View all trending →~~**
## **What buyers say about double cylinder deadbolt**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**18%
*“Easy set up”*
**Locking Mechanism**18%
*“Easy to install lock”*
**Value For Money**12%
*“they are affordable”*
**Quality-Overall**12%
*“Excellent product”*
**Advertised Vs Actual Product**5%
*“Just as advertised”*
**Size-Overall**5%
*“Fits great”*
**Strength**4%
*“Sturdy, great quality, and easy to install”*
**Efficiency**4%
*“It works reliably”*
**Security**3%
*“consistently reliable to keep my son secure”*
**Durability**2%
*“Very durable”*
### **What buyers complain about **
**Quality-Overall**21%
*“seems low on the quality scale”*
**Locking Mechanism**19%
*“wouldnt lock at all”*
**Assembly/Installation**9%
*“A little difficult to assemble”*
**Durability**7%
*“Broke instantly”*
**Size-Overall**6%
*“screws were to big”*
**Strength**4%
*“a bit flimsy”*
**Functionality-Overall**3%
*“Did not work”*
**Defective Material/Parts**3%
*“arrived broke”*
**Advertised Vs Actual Product**2%
*“Looks are deceiving”*
**Paint Quality**2%
*“Cheap paint chipped during install”*
### **Top return reasons **
**Size-Overall**31%
**Locking Mechanism**14%
**Defective Material/Parts**9%
**Functionality-Overall**9%
**Compatibility-Overall**5%
**Mechanism Issues**5%
**Quality-Overall**4%
**Advertised Vs Actual Product**4%
**Color**4%
**Value For Money**3%
## **Common questions**
- **Is double cylinder deadbolt profitable to sell on Amazon United States?**
- The niche generates $121K/yr across 40 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +11.3%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the double cylinder deadbolt niche?**
- 18 brands and 51 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in double cylinder deadbolt?**
- Top complaints mined from reviews: Quality-Overall, Locking Mechanism, Assembly/Installation. The return rate is 5.5% — above our launch gate.
- **When does demand for double cylinder deadbolt peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the double cylinder deadbolt niche?**
- Listings span $13.54–$116.27; the average listing price is $28.13 (sweet spot $15–$100). The average incumbent carries 1,177 reviews — the moat a new listing must climb.
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