french door lock
Worth a lookShows no brand lock-in (top 5 brands take 43% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Brand share
Great43%top-5 brand share — no brand owns this niche
Avg price
Great$21.98avg listing price — sweet spot $15–$100
Price range
Great$4.97–$104.82cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great36%top-5 click share — an open shelf
Market size
Good$306K$306K/yr · 460K searches
Returns
Okay3.0%return rate — above 6% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Review moat
Okay2,695.47avg incumbent reviews — the moat a new listing must climb
Growth
Bad-4.4%90-day search growth — must beat 0% to launch
Competition
Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.Brands
43 falling
Sellers
82
Top-5 brand share
43%
Open market
52%
- Alise11%
- ROZEKEAN10%
- MOSECYOU9%
- SPISPI8%
- Ceoighe6%
- AST5%
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 58 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
French Door Lock Door Security Bar Double Door Locking Device Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers All Metal Construction Safety U-Shaped Bar Prevent Kick Ins
ROZEKEAN$18.594.7★145 rev
Baby Proofing Cabinets Cabinet Locks for Babies U-Shaped Child Locks for Cabinets Child Proof Cabinet Latches Child Safety Cabinet Locks with Adjustable by SPISPI (Pack of 2)
SPISPI$6.344.4★5,003 rev
Alise 4 inch Flip Latch Gate Latches Safety Door Lock for Barn Wood Fence Sliding French Doors Heavy Duty SUS304 Stainless Steel Gate Hardware Matte Black MS9500-B
Alise$8.764.6★1,544 rev
MOSECYOU French Door Lock Double Door Security Barricade Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers All Metal Construction Device U-Shaped Bar Prevent Kick Ins
MOSECYOU$19.504.8★71 rev
Kiscords Baby Safety Cabinet Locks for Knobs Child Safety Cabinet Latches for Home Safety Strap for Baby Proofing Cabinets Kitchen Door RV No Drill No Screw No Adhesive (White)
KisCords$13.644.4★7,099 rev
Newest
by launch dateMOSECYOU French Door Lock Double Door Security Barricade Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers All Metal Construction Device U-Shaped Bar Prevent Kick Ins
MOSECYOU$19.5071 rev
Camtek Matte Black Double Front Door Handle Set French Door Locks for Double Doors with Smooth Deadbolt & Dummy Handle Double Door Lock Easy to Install Durable Construction for Front Door
Camtek$73.3630 rev
AST Double Door Lockout Device French Door Reinforcement Lock with 3 Keys Lockout to Double Door Knobset and Handleset Childproof Door Lock Premium Version (Matte White with Keyed Differ)
AST$41.4739 rev
AST Double Door Lockout Device French Door Reinforcement Lock with 3 Keys Lockout to Double Door Knobset and Handleset Childproof Door Lock Premium Version (Matte Black with Keyed Differ)
AST$41.1730 rev
MOSECYOU Flush Bolt French Door Lock 7 Satin Nickel Concealed Bolt Latch for Double Doors Top/Bottom Lock for Patio/Storm Doors (1 Pack)
MOSECYOU$14.8233 rev
Trending
90-day click momentum
2 Pack French Door Lock 6 Inch Heavy Stainless Steel Flush Latch Bolts Concealed Security Double Door Lock for Inactive Leaf Double Door Opening and Composite Wood Double Dummy Door
Enprotty$15.934.0★
AST Double Door Security Lock Keyed French Door Lockout Device Reinforcement Lock for Knobset and Handleset Prevent Kick Ins Childproof Kids Proof Barricade Matte White with Bigger Adjustment
AST$37.894.0★
AST Double Door Security Lock Keyed French Door Lockout Device Reinforcement Lock for Knobset and Handleset Prevent Kick Ins Childproof Kids Proof Barricade Matte Black with Bigger Adjustment
AST$37.805.0★
MOSECYOU French Door Lock Double Door Security Barricade Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers All Metal Construction Device U-Shaped Bar Prevent Kick Ins
MOSECYOU$19.504.8★
Huglock - The Snap-On Door Lock Kids Cant Reach or Defeat - No Tools or Adhesives Required - Works With Door Knob Lever or Handle - Childproof Safety Locks are Toddler Baby and Child Proof (1 Pack)
SnapPower$19.704.5★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -4.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“These locks are great”
“Ease of use”
“The build quality feels solid overall”
“Easy to setup”
“As advertised”
“Very secure”
“It's sturdy”
“Great value”
“actually durable vs other ones we have used on the handle”
“Fits perfectly”
What buyers complain about
“Feels cheap and the unlock mechanism doesnt work well”
“Doesn't fit”
“Does not work as advertised”
“broke easily”
“Poor Adhesive”
“Hard to open”
“Good Concept, Poor Quality Control”
“Not strong”
“A little expensive”
“Not compatible”