---
title: "Double Sided Keyless Door Lock — $116K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/double-sided-keyless-door-lock"
last_updated: "2026-08-07T16:18:00.128Z"
locale: en
meta:
description: "Niche score 52/100 · $116K/yr market · 97K searches/yr · $81.95 avg price. Weak search conversion (1.5%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $116K/yr market · 97K searches/yr · $81.95 avg price. Weak search conversion (1.5%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Double Sided Keyless Door Lock — $116K/yr Amazon US Niche (2026) - Flapen"
---
# **double sided keyless door lock**
**Worth a look**
Shows beatable incumbent ratings (4.2★), but weak search conversion (1.5%) keeps it on the watch list.
Market size 27Growth 49Conversion 18Competition 77Returns 26Price range 43Avg price 82Brand share 76Review moat 51Quality gap 84
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****$81.95**
avg listing price — sweet spot $15–$100
**Competition**
**Great****38%**
top-5 click share — an open shelf
**Brand share**
**Great****59%**
top-5 brand share — no brand owns this niche
**Review moat**
**Good****1,473.12**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+19.4%**
90-day search growth — must beat 0% to launch
**Price range**
**Okay****$9.37–$209.07**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$116K**
$116K/yr · 97K searches
**Returns**
**Okay****4.9%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.5%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, double sided keyless door lock is a $116K/yr Amazon United States market (97K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 52/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **double sided keyless door lock market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$82K–$102K**
- units × avg price
- **Conversion rate**
- **1.5%**
- **Avg BSR**
- **#211**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **86%**
- **Out of stock**
- **0.3%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **154 days**
## **Competition & brand share**
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.
**Brands**
**26 **▼falling
**Sellers**
**49**
**Top-5 brand share**
**59%**
Top 20: 95%
**Top-5 click share**
**38%**
Top 20: 78%
**Open market**
**35%**
- Richelock23% - VEVOR11% - iuknob10% - BOTHSTAR9% - Rulart6% - iulock6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +19.4% search growth over the last 90 days.
3K2KSpike '25Prime Day '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Aug · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/double-sided-keyless-door-lock/trend)
## **Top double sided keyless door lock search terms**
- **double sided door lock**25K/yr+30.5%0.8% conv. - **double sided keyless door lock**15K/yr+76.2%0.6% conv. - **double sided keypad door lock**11K/yr-6.9%1.4% conv. - **double sided keyless deadbolt**10K/yr+14.7%0.5% conv. - **double sided lock**7K/yr+32.1%1.9% conv. - **double sided keypad deadbolt**5K/yr+37.0%0.6% conv. - **double sided locking door knob**6K/yr-0.2%0.7% conv. - **double sided keypad lock**4K/yr+52.9%0.5% conv. - **two way door lock**4K/yr+8.1%0.5% conv. - **double sided fingerprint door lock**4K/yr-41.0%0.5% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/double-sided-keyless-door-lock/search-terms)
## **Top double sided keyless 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%4%$5K8%$9K12%$14K16%$19K101001K10K100K 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**Richelock IU52 Double-Sided Keypad Door Lock All-Weather Fully Waterproof Keyless Entry with Dual-Sided Programmable Codes Same Key Both Sides for Outdoor Indoor Gate & Fence**Richelock**$116.27**4.4★121 rev](https://www.amazon.com/dp/B0F8HM4F41) [2**Double Sided Keypad Door Knob with Dual Cylinders and Key Alike iuknob Keyless Entry Smart Door Lock for Entrance Fence Gate Swimming Pool Waterproof and Weatherproof for Outdoor & Interior Door.**iuknob**$112.51**4.3★221 rev](https://www.amazon.com/dp/B0BWFR9WJN) [3**iulock Keypad & Key Smart Door Lock 50 User Codes Waterproof Auto Lock - Matte Black**iulock**$38.20**4.3★2,546 rev](https://www.amazon.com/dp/B0B2MPYRKP) [4**VEVOR Mechanical Keyless Entry Door Lock 14 Digit Keypad Double-Sided Embedded Outdoor Gate Door Locks Set with Keypad and Handle Water-Proof Zinc Alloy Easy to Install for Garden Yard Garage**VEVOR**$47.51**3.9★121 rev](https://www.amazon.com/dp/B0CP3F2DL8) [5**VEVOR Mechanical Keyless Entry Door Lock 2.0 Code Upgrade 4-7 Digits Code Double-Sided Push Button Combination Mechanical Keypad Door Knob Auto Locking for Indoor or Outdoor Oil-Rubbed Bronze**VEVOR**$54.59**4.1★11 rev](https://www.amazon.com/dp/B0GHQVNZ34)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**VEVOR Mechanical Keyless Entry Door Lock 2.0 Code Upgrade 4-7 Digits Code Double-Sided Push Button Combination Mechanical Keypad Door Knob Auto Locking for Indoor or Outdoor Oil-Rubbed Bronze**VEVOR**$54.59**11 rev6mo ago](https://www.amazon.com/dp/B0GHQVNZ34) [**Richelock IU52 Double-Sided Keypad Door Lock All-Weather Fully Waterproof Keyless Entry with Dual-Sided Programmable Codes Same Key Both Sides for Outdoor Indoor Gate & Fence**Richelock**$116.27**121 rev1y ago](https://www.amazon.com/dp/B0F8HM4F41) [**Richelock IU53 Double-Sided Fingerprint & Keypad Door Lock All-Weather Fully Waterproof Biometric Entry with Dual-Sided Codes Same Key Both Sides for for Outdoor Indoor Gate Fence**Richelock**$161.53**81 rev1y ago](https://www.amazon.com/dp/B0F8HS3RRT) [**Richelock IU52 Double-Sided Keypad Door Lock All-Weather Fully Waterproof Keyless Entry with Dual-Sided Programmable Codes Same Key Both Sides for Outdoor Indoor Gate & Fence**Richelock**$116.16**121 rev1y ago](https://www.amazon.com/dp/B0F8H4SLSP) [**Richelock Fingerprint Door knob Smart Biometric Door Lock with Keypad Keyless Entry Code Door Knob Waterproof & Weatherproof Auto Lock Voice Navigation For Bedroom Gate Office -Matte Black**Richelock**$36.89**493 rev1y ago](https://www.amazon.com/dp/B0DJDF476M)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**VEVOR Mechanical Keyless Entry Door Lock 2.0 Code Upgrade 4-7 Digits Code Double-Sided Push Button Combination Mechanical Keypad Door Knob Auto Locking for Indoor or Outdoor Oil-Rubbed Bronze**VEVOR**$54.59**4.1★**▲ 138%**](https://www.amazon.com/dp/B0GHQVNZ34) [**Keypad Keyless Entry Door Lock with Handle Smart Digital Deadbolts 2 Pack**HIDALIFE**$93.56**4.2★**▲ 85%**](https://www.amazon.com/dp/B0D1TH24RG) [![JOUNJIP Double-Sided Keyless Entry Door Lock - Bump Key Proof Mechanical Door Lock with Lever Handle - [Square Spindle] Easier Install - (Matte Black) - Outdoor Gate Lock with Keypad and Passage Mode](https://m.media-amazon.com/images/I/41u1Upr0JLL.jpg)**JOUNJIP Double-Sided Keyless Entry Door Lock - Bump Key Proof Mechanical Door Lock with Lever Handle - \[Square Spindle\] Easier Install - (Matte Black) - Outdoor Gate Lock with Keypad and Passage Mode**JOUNJIP**$205.46**4.8★**▲ 81%**](https://www.amazon.com/dp/B0DLX2CC8C) [**New Upgrade Double Sided Keypad Door Lock with Adjustable Deadlatch 2-3/8 and 2-3/4 Keyless Door Lock with Handle Gate Lock for Outdoor Fences (Black)**Soobool**$77.59**4.0★**▲ 39%**](https://www.amazon.com/dp/B0DDXKS7P8) [**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★**▲ 33%**](https://www.amazon.com/dp/B0D1XZKPGY)
**~~View all trending →~~**
## **What buyers say about double sided keyless door lock**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**24%
*“Easy install”*
**Locking Mechanism**18%
*“Smart lock”*
**Quality-Overall**11%
*“Strong build quality”*
**Value For Money**10%
*“Good Value”*
**Ease Of Use**5%
*“Ease of use”*
**Advertised Vs Actual Product**4%
*“As advertised”*
**Security**4%
*“extra security”*
**Efficiency**3%
*“Works excellently”*
**Instructions/User Manual/Troubleshooting**3%
*“Easy to read instructions”*
**Strength**3%
*“Nice sturdy knob”*
### **What buyers complain about **
**Locking Mechanism**21%
*“doesnt lock”*
**Quality-Overall**14%
*“very cheap quality”*
**Durability**10%
*“Broken”*
**Assembly/Installation**6%
*“A little tricky to install”*
**Functionality-Overall**6%
*“Does not work properly”*
**Size-Overall**4%
*“Too small”*
**Defective Material/Parts**2%
*“All three are defective”*
**Ease Of Use**2%
*“Not user friendly”*
**Battery Life**2%
*“replacing the batteries didnt help”*
**Instructions/User Manual/Troubleshooting**2%
*“No Instructions”*
### **Top return reasons **
**Size-Overall**30%
**Locking Mechanism**18%
**Functionality-Overall**12%
**Defective Material/Parts**6%
**Mechanism Issues**6%
**Compatibility-Overall**6%
**Value For Money**3%
**Advertised Vs Actual Product**3%
**Assembly/Installation**3%
**Color**3%
## **Common questions**
- **Is double sided keyless door lock profitable to sell on Amazon United States?**
- The niche generates $116K/yr across 43 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +19.4%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the double sided keyless door lock niche?**
- 26 brands and 49 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 59% of demand.
- **What do buyers complain about in double sided keyless door lock?**
- Top complaints mined from reviews: Locking Mechanism, Quality-Overall, Durability. The return rate is 4.9%.
- **When does demand for double sided keyless door lock peak?**
- Demand peaks in Jul–Aug; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the double sided keyless door lock niche?**
- Listings span $9.37–$209.07; the average listing price is $81.95 (sweet spot $15–$100). The average incumbent carries 1,473 reviews — the moat a new listing must climb.
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