---
title: "Interior Door Lock and Keypad — $177K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/interior-door-lock-and-keypad"
last_updated: "2026-08-09T06:12:40.237Z"
locale: en
meta:
description: "Niche score 47/100 · $177K/yr market · 43K searches/yr · $105.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $177K/yr market · 43K searches/yr · $105.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Interior Door Lock and Keypad — $177K/yr Amazon US Niche (2026) - Flapen"
---
# **interior door lock and keypad**
**Skip it**
Prices mostly outside the sweet spot ($28.99–$474.60) — this niche doesn't clear our bar today.
Market size 36Growth 39Conversion 49Competition 53Returns 24Price range 16Avg price 73Brand share 66Review moat 40Quality gap 76
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Good****$105.14**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Okay****3.9%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Okay****2,545.1**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+10.9%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$177K**
$177K/yr · 43K searches
**Returns**
**Bad****5.3%**
return rate — above 5% kills the launch gate
**Price range**
**Bad****$28.99–$474.60**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, interior door lock and keypad is a $177K/yr Amazon United States market (43K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Aug–Sep–Oct–Nov–Dec. Verdict: Skip it — 47/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **interior door lock and keypad market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$158K–$210K**
- units × avg price
- **Conversion rate**
- **3.9%**
- **Avg BSR**
- **#131**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **93%**
- **Out of stock**
- **1.8%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **157 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▼falling
**Sellers**
**93**
**Top-5 brand share**
**65%**
Top 20: 100%
**Top-5 click share**
**53%**
Top 20: 91%
**Open market**
**28%**
- Yamiry25% - Evanshow14% - iulock13% - Veise7% - Signstek7% - NICE DIGI6%
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +10.9% search growth over the last 90 days.
5K4KHoliday '24Spike '26Prime Day '26 seasonDecMarJunAugNovMarMay
Peak months: Aug, Sep, Oct, Nov, Dec · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/interior-door-lock-and-keypad/trend)
## **Top interior door lock and keypad search terms**
- **coded door knob**10K/yr+29.7%4.0% conv. - **indoor keypad door lock**6K/yr+4.1%2.1% conv. - **interior keypad door lock**5K/yr+2.0%3.1% conv. - **cipher lock**6K/yr+5.7%0.4% conv. - **combo door knob**4K/yr+11.2%3.8% conv. - **closet door lock with code**5K/yr+3.5%2.6% conv. - **interior door keypad lock**4K/yr+28.2%3.6% conv. - **cypher lock**3K/yr-6.4%1.9% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/interior-door-lock-and-keypad/search-terms)
## **Top interior door lock and keypad 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%5%$9K10%$18K15%$27K20%$35K101001K10K100K 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**Keypad Smart Door Knob Lock Yamiry Keyless Entry Digital Lock with Handle Electronic Code Knob for Front Door Easy Installation**Yamiry**$49.69**4.4★1,940 rev](https://www.amazon.com/dp/B0D73J4DZ5) [2**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) [3**Evanshow Fingerprint Door Lock Biometric Door Knob with Keypad Keyless Entry Door Locks for Bedrooms Home Hotel Office Apartment Black**Evanshow**$28.99**4.1★1,831 rev](https://www.amazon.com/dp/B0F375TD2P) [4**Signstek Keyless Entry Door Lock Door Knob with Keypad Smart Code Door Lock Mute Mode Passage Function Easy to Install Satin Nickel**Signstek**$36.28**4.2★6,881 rev](https://www.amazon.com/dp/B00F4TU7V4) [5**Keypad Door Lock with Handle Smart Keyless Entry with Code for Front Door**NICE DIGI**$48.03**4.4★2,061 rev](https://www.amazon.com/dp/B0CGRB13DM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Evanshow Smart Door Knob Fingerprint Lock 4-in-1 Keyless Entry (Fingerprint/App/Code/Key) Biometric Door with Auto-Lock Easy Install for Home/Bedroom/Office-Black**Evanshow**$39.48**98 rev3mo ago](https://www.amazon.com/dp/B0GXV2F5B6) [**ThorBolt G1 Fingerprint Door Knob Lock with Keypad Biometric Door Knob Auto-Lock 4* AAA Alkaline Batteries Interior Door Lock for Bedroom Garage Office Pantry Door Black**ThorBolt**$38.71**219 rev5mo ago](https://www.amazon.com/dp/B0FWJZXHBW) [**Veise Keypad Door Lock with Handle Keyless Entry for Front Door & Bedroom Electronic Lock with Code Auto-Locking Easy Installation Passage Mode Satin Nickel**Veise**$47.41**470 rev1y ago](https://www.amazon.com/dp/B0F5HS2P1T) [**Veise KS03 Keypad Door Knob Lock Keyless Entry Digital Lock with Handle Electronic Smart Knob for Front Door & Bedroom Easy Install Auto Lock Passage Mode Anti-Peeping Password Satin Nickel**Veise**$47.49**466 rev1y ago](https://www.amazon.com/dp/B0F3HNBYNH) [**Evanshow Smart Door Lock with Knob Keyless Entry Door Locks with Handle Fingerprint Door Knob for Bedroom/Front Door/Apartment Generate Passcode Remotely Black**Evanshow**$35.64**1,831 rev1y ago](https://www.amazon.com/dp/B0F3W69L46)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Evanshow Smart Door Knob Fingerprint Lock 4-in-1 Keyless Entry (Fingerprint/App/Code/Key) Biometric Door with Auto-Lock Easy Install for Home/Bedroom/Office-Black**Evanshow**$39.48**4.3★**▲ 277%**](https://www.amazon.com/dp/B0GXV2F5B6) [**ThorBolt G1 Fingerprint Door Knob Lock with Keypad Biometric Door Knob Auto-Lock 4* AAA Alkaline Batteries Interior Door Lock for Bedroom Garage Office Pantry Door Black**ThorBolt**$38.71**4.3★**▲ 138%**](https://www.amazon.com/dp/B0FWJZXHBW) [**Evanshow Smart Door Lock with Knob Keyless Entry Door Locks with Handle Fingerprint Door Knob for Bedroom/Front Door/Apartment Generate Passcode Remotely Black**Evanshow**$35.64**4.1★**▲ 106%**](https://www.amazon.com/dp/B0F3W69L46) [**TEEHO TE004 Keyless Entry Keypad Door Lock with Handle - Smart Digital Electronic Lock for Interior Door with Anti-Peeping Auto Lock & Passage Mode - Easy Installation - Satin Nickel**TEEHO**$48.29**4.3★**▲ 81%**](https://www.amazon.com/dp/B0DGX2M593) [**Signstek Keyless Entry Door Lock Door Knob with Keypad Smart Code Door Lock Mute Mode Passage Function Easy to Install Satin Nickel**Signstek**$36.28**4.2★**▲ 68%**](https://www.amazon.com/dp/B00F4TU7V4)
**~~View all trending →~~**
## **What buyers say about interior door lock and keypad**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**25%
*“Ez install”*
**Locking Mechanism**21%
*“Smart Door Lock”*
**Quality-Overall**10%
*“Build quality feels solid”*
**Value For Money**8%
*“Great Deal”*
**Ease Of Use**8%
*“Makes life so much easier”*
**Security**4%
*“Feels very secure”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Efficiency**2%
*“Works smoothly so far”*
**Instructions/User Manual/Troubleshooting**2%
*“Easy to follow instructions”*
**Design-Overall**2%
*“Well constructed”*
### **What buyers complain about **
**Locking Mechanism**19%
*“THE LOCK IS NOT GOOD”*
**Durability**14%
*“Broke after a month”*
**Quality-Overall**8%
*“so low end quality”*
**Functionality-Overall**8%
*“it does not function properly”*
**Assembly/Installation**4%
*“Difficult to Install”*
**Instructions/User Manual/Troubleshooting**4%
*“No Instructions”*
**Battery Life**4%
*“battery do not last long”*
**Ease Of Use**4%
*“difficult to open”*
**Value For Money**2%
*“Looks more expensive than it is”*
**Touch/Button Controls**2%
*“buttons already malfunctioning”*
### **Top return reasons **
**Size-Overall**22%
**Locking Mechanism**20%
**Functionality-Overall**14%
**Defective Material/Parts**8%
**Compatibility-Overall**6%
**Mechanism Issues**5%
**Assembly/Installation**4%
**Value For Money**3%
**Advertised Vs Actual Product**3%
**Connectivity-Overall**3%
## **Common questions**
- **Is interior door lock and keypad profitable to sell on Amazon United States?**
- The niche generates $177K/yr across 29 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +10.9%. Flapen's verdict: Skip it (47/100).
- **How competitive is the interior door lock and keypad niche?**
- 18 brands and 93 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in interior door lock and keypad?**
- Top complaints mined from reviews: Locking Mechanism, Durability, Quality-Overall. The return rate is 5.3% — above our launch gate.
- **When does demand for interior door lock and keypad peak?**
- Demand peaks in Aug–Sep–Oct–Nov–Dec; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the interior door lock and keypad niche?**
- Listings span $28.99–$474.60; the average listing price is $105.14 (sweet spot $15–$100). The average incumbent carries 2,545 reviews — the moat a new listing must climb.
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