door key
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible15.7%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Review moat
Okay2,016.14avg incumbent reviews — the moat a new listing must climb
Market size
Okay$122K$122K/yr · 157K searches
Growth
Bad-0.1%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Avg price
Bad$4.94avg listing price — sweet spot $15–$100
Competition
Bad87%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad$3.98–$6.04cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, door key is a $122K/yr Amazon United States market (157K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
door key market data
- Units sold / yr
- 25K–30K
- avg 3,000–4,000/product
- Revenue / yr
- $124K–$148K
- units × avg price
- Conversion rate
- 15.7%
- Avg BSR
- #235
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 44 months
- Avg seller age
- 156 days
Competition & brand share
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 falling
Sellers
12
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
87%
Top 20: 100%
Open market
0%
- Non Applicable62%
- Alico30%
- SCHLAGE7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -0.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top door key search terms
- door key23K/yr
- interior door key15K/yr
- bathroom key12K/yr
- key for door knob with hole13K/yr
- door lock key9K/yr
- door key pin10K/yr
- bedroom door key9K/yr
- door knob key9K/yr
- bathroom door key6K/yr
- door keys6K/yr
Top door key 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.
All 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Bedroom/Bathroom Door Emergency Keys Compatible with Kwikset Interior Levers and Knobs (5)
Non Applicable$3.984.7★5,985 rev
Interior Emergency Key for Bathroom Bedroom - 6 Pack
Alico$4.074.8★2,656 rev
Interior Door Key for Bathroom Bedroom Emergency Key for Replacement - Set of 10
Alico$6.044.6★625 rev
Bedroom/Bathroom Door Steel Emergency Key Pins Compatible with Kwikset Interior Levers and Knobs (10) Gold Color
Non Applicable$5.814.8★1,025 rev
Schlage M504-271 Interior Bedroom Bathroom Emergency Door Lock Key Pin 5 Pack
SCHLAGE$4.634.4★1,026 rev
Newest
by launch dateInterior Emergency Key for Bathroom Bedroom - 6 Pack
Alico$4.072,656 rev
Interior Door Key for Bathroom Bedroom Emergency Key for Replacement - Set of 10
Alico$6.04625 rev
Bedroom/Bathroom Emergency Keys Compatible with Kwikset Interior Levers and Knobs - 10 Pack
Alico$6.042,656 rev
Bedroom/Bathroom Door Steel Emergency Release Tool Compatible with Kwikset Interior Levers and Knobs (6) Gold Color
Non Applicable$4.04140 rev
Bedroom/Bathroom Door Emergency Keys Compatible with Kwikset Interior Levers and Knobs (5)
Non Applicable$3.985,985 rev
Trending
90-day click momentumInterior Door Key for Bathroom Bedroom Emergency Key for Replacement - Set of 10
Alico$6.044.6★
Schlage M504-271 Interior Bedroom Bathroom Emergency Door Lock Key Pin 5 Pack
SCHLAGE$4.634.4★
Bedroom/Bathroom Door Emergency Keys Compatible with Kwikset Interior Levers and Knobs (5)
Non Applicable$3.984.7★
Bedroom/Bathroom Door Steel Emergency Key Pins Compatible with Kwikset Interior Levers and Knobs (10) Gold Color
Non Applicable$5.814.8★
Bedroom/Bathroom Door Steel Emergency Release Tool Compatible with Kwikset Interior Levers and Knobs (6) Gold Color
Non Applicable$4.044.8★
What buyers say about door key
What buyers praise and complain about, mined from review topics.What buyers love
“locks the door well works as described”
“As advertised”
“Great deal”
“Perfect fit”
“It worked for my door”
“The keys work great”
“easy to use”
“These emergency door keys are an absolute must-have for any household with interior privacy locks”
“They were they're durable”
“Perfect for indoor doors”
What buyers complain about
“Did not work”
“We had an issue with door locks accidentally engaging”
“Does not fit hence not very useful”
“the flat point is too thick”
“No use”
“Waste of money”
“False advertisement for this tool”
“Did not work for our door unfortunately”
“Rusty”
“They could be a bit heavier”
Top return reasons
Common questions
- Is door key profitable to sell on Amazon United States?
- The niche generates $122K/yr across 7 tracked products. 90-day search growth is -0.1%. Flapen's verdict: Skip it (34/100).
- How competitive is the door key niche?
- 3 brands and 12 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in door key?
- Top complaints mined from reviews: Functionality-Overall, Locking Mechanism, Size-Overall. The return rate is 0.8%.
- When does demand for door key peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the door key niche?
- Listings span $3.98–$6.04; the average listing price is $4.94 (sweet spot $15–$100). The average incumbent carries 2,016 reviews — the moat a new listing must climb.