sliding door lock
Launch itA $1.4M/yr market growing +13.3% this quarter with returns at 5.0% — clears our launch bar.
Market size
Great$1.4M$1.4M/yr · 1.9M searches
Brand share
Great58%top-5 brand share — no brand owns this niche
Avg price
Great$15.75avg listing price — sweet spot $15–$100
Price range
Good$4.18–$38.82cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good48%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.5%search→purchase rate — share of searches ending in a sale
Growth
Okay+13.3%90-day search growth — must beat 0% to launch
Review moat
Okay2,707.55avg incumbent reviews — the moat a new listing must climb
Returns
Okay5.0%return rate — above 6% kills the launch gate
According to Flapen's Amazon United States niche tracking, sliding door lock is a $1.4M/yr Amazon United States market (1.9M searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Mar. Verdict: Launch it — 60/100.
Data updated Jul 12, 2026 · scored weekly · How we score niches
Market data
- Units sold / yr
- 80K–100K
- avg 3,000–4,000/product
- Revenue / yr
- $1.3M–$1.6M
- units × avg price
- Launch success
- —
- 3 of 4 new (360d)
- Conversion rate
- 4.5%
- Avg BSR
- #43
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 87%
- Out of stock
- 3.6%
- Avg brand age
- 43 months
- Avg seller age
- 156 days
Competition
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.Brands
22 rising
Sellers
68
Top-5 brand share
58%
Top 20: 98%
Top-5 click share
48%
Top 20: 88%
Open market
35%
- ZRFCXE23%
- AceMining10%
- STERGDE8%
- WINONLY8%
- PRIME-LINE8%
- HauSun7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +13.3% search growth over the last 90 days.Peak months: Mar · busiest ÷ quietest = 1.8×
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 31 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sliding Door Lock 2 Pack Safety Sliding Glass Door Lock for Sliding Glass Doors Sliding Windows Sliding Closet etc. Adhesive Installation Provides More Security for Your Family and Pets
ZRFCXE$10.024.6★3,043 rev
AceMining Sliding Door Security Bar Heavy Duty Sliding Patio Door Lock Bar 20-50inch Adjustable Multi-use Window Security Bars Sliding Door Stopper White 1Pack
AceMining$16.794.6★1,651 rev
Sliding Door Locks 2-PackPrevents sliding doors from being opened; extra safety device for sliding doors; adhesive mount; fits glass sliding doors sliding windows sliding wardrobes etc. (Blue)
STERGDE$8.364.6★424 rev
Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials
WINONLY$11.454.3★300 rev
ZRFCXE Window Locks 4 Pack Sliding Window Locks with Key for Vertical & Horizontal Sliding Windows Doors Easv to Install Adjustable Security Window Lock for Patio Bedroom Home and Office (Black)
ZRFCXE$10.094.5★4,747 rev
Newest
by launch date
LATIBELL 2 Pack Sliding Door Lock Sliding Glass Door Window Locks for Child Safety Security Locks for Sliding Doors Sliding Windows and Closets Easy Adhesive Install for Patio - Baby Proofing
LATIBELL$6.461,229 rev
Sliding Door Security Bar 17-50 inch Adjustable Window Security Bar with Rubber Tips Sliding Door Lock Bars for Window Safety Bars Home Apartment Safety Home Apartment Patio Heavy Duty Interior
Povtulu$12.00254 rev
2-Pack Sliding Door Lock for Sliding Glass Doors & Windows - Security Child Proof Sliding Glass Door Lock
HomeBrella$4.21106 rev
PBHEPJ Sliding Door Security Bar 18.5-51 inch Adjustable Patio Door Security bar with Rubber Tips Multi-use Window Security Bars Sliding Door Stopper White 1 Pack
PBHEPJ$10.94182 rev
Sliding Door Lock Window Locks for Patio Sliding Glass Door Foot Locks for Front Door Security Bar Stoppers Top Horizontal Childproof Keyless Safety Lock from Inside Home Apartment Hotel Essentials
WINONLY$11.45300 rev
Trending
90-day click momentumLATIBELL 2 Pack Sliding Door Lock Sliding Glass Door Window Locks for Child Safety Security Locks for Sliding Doors Sliding Windows and Closets Easy Adhesive Install for Patio - Baby Proofing
LATIBELL$6.464.6★
Sliding Door Child Safety Lock: 2-Pack for Glass/Patio Doors Windows & Closets 3-Second No-Tools Installation Durable Childproof Security Lock for Lasting Protection - Baby to Kid Safety Age 0-4
LAZY CAT ISLAND$9.854.8★
OKEFAN 4 Pack Sliding Door Lock Child Safety (Blue)
OKEFAn$8.414.4★
Sliding Door Security Bar 17-50 inch Adjustable Window Security Bar with Rubber Tips Sliding Door Lock Bars for Window Safety Bars Home Apartment Safety Home Apartment Patio Heavy Duty Interior
Povtulu$12.004.5★
2-Pack Sliding Door Lock for Sliding Glass Doors & Windows - Security Child Proof Sliding Glass Door Lock
HomeBrella$4.214.4★
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Easy assembly”
“Locks and stays locked”
“Amazing quality”
“Easy to apply, works great”
“Worked well and surprisingly strong hold”
“makes me feel secure”
“As advertised”
“Works Great”
“Great value”
“Fit well, works as required”
What buyers complain about
“Broke within an hour”
“the locking mechanism doesnt work at all”
“Its too short”
“Bad quality”
“Difficult to install”
“Product came not working right”
“Not very sturdy”
“Adhesive sucks”
“hard to operate”
“Was much thinner than expected”
Top return reasons
Common questions
- Is sliding door lock profitable to sell on Amazon United States?
- The niche generates $1.4M/yr across 31 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +13.3%. Flapen's verdict: Launch it (60/100).
- How competitive is the sliding door lock niche?
- 22 brands and 68 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 58% of demand.
- What do buyers complain about in sliding door lock?
- Top complaints mined from reviews: Durability, Locking Mechanism, Size-Overall. The return rate is 5.0%.
- When does demand for sliding door lock peak?
- Demand peaks in Mar; the busiest month runs 1.8× the quietest.
- What does it cost to enter the sliding door lock niche?
- Listings span $4.18–$38.82; the average listing price is $15.75 (sweet spot $15–$100). The average incumbent carries 2,708 reviews — the moat a new listing must climb.
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