mortise lock
Worth a lookShows a sweet-spot price point ($45.90 avg), but high returns (6.4%) keeps it on the watch list.
Avg price
Incredible$45.90avg listing price — sweet spot $15–$100
Competition
Great32%top-5 click share — an open shelf
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Review moat
Good718.82avg incumbent reviews — the moat a new listing must climb
Market size
Good$388K$388K/yr · 316K searches
Brand share
Good73%top-5 brand share — brands hold most of the demand
Conversion
Okay2.7%search→purchase rate — share of searches ending in a sale
Growth
Bad-4.9%90-day search growth — must beat 0% to launch
Price range
Bad$8.01–$377.65cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Bad6.4%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, mortise lock is a $388K/yr Amazon United States market (316K searches/yr). The top 5 brands hold 73% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
mortise lock market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- $459K–$574K
- units × avg price
- Conversion rate
- 2.7%
- Avg BSR
- #284
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 85%
- Out of stock
- 4.3%
- Avg brand age
- 51 months
- Avg seller age
- 159 days
Competition & brand share
Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.Brands
25 rising
Sellers
92
Top-5 brand share
73%
Top 20: 97%
Top-5 click share
32%
Top 20: 68%
Open market
24%
- newliplace28%
- PRIME-LINE25%
- Ruigrit8%
- MaxxGeek6%
- Segal6%
- ToPToToo4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -4.9% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top mortise lock search terms
- mortise lock89K/yr
- mortise lock set exterior door43K/yr
- mortise lock set interior door41K/yr
- mortise door knob24K/yr
- mortise locks10K/yr
- mortise lock set13K/yr
- mortise lock replacement10K/yr
- old style door knob conversion kit13K/yr
- mortise9K/yr
- old door knob8K/yr
Top mortise 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Newliplace Mortise Lock Set for Interior Door Vintage Door Knobs with Lock and Skeleton Key Antique Door Knobs Oil Rubbed Bronze Finish
newliplace$21.394.2★680 rev
Prime-Line E 2495 Mortise Keyed Lock Set with Classic Bronze Knob Perfect for Replacing Broken Antique Lock Sets Fits 1-3/8 In.-1-3/4 In. Interior Doors Classic Bronze (Single Pack)
PRIME-LINE$22.354.3★4,783 rev
Ruigrit Vintage Mortise Lock Set for Interior Doors Antique Door Knobs with Heavy Duty Rustproof Zinc Alloy & Skeleton Key Fits 1-3/8 to 1-3/4 Entryway Replacement Matte Black
Ruigrit$21.024.2★145 rev
Prime-Line E 2014 Mortise Lock - Adjustable Spring-Loaded Hook Latch for Sliding Patio Doors Constructed of Wood Aluminum and Vinyl 3-11/16 In. 45 Keyway Round Face (Single Pack)
PRIME-LINE$10.054.4★5,722 rev
Newliplace Mortise Lock Set for Interior Door Vintage Old Door Knobs with Lock and Skeleton Key Antique Door Knobs Matte Black Finish
newliplace$24.904.2★680 rev
Newest
by launch date
Tandefio 1 Set Double Cylinder Mortise Lock Iron Gate Ornamental Latch Set with 2-1/2 Backset 1 X 7-1/8 Faceplate Polish Brass(Right Hand Reverse Brass)
Tandefio$80.0220 rev
MaxxGeek Flat Slot Storm Door Handle Complete Set Mortise Keyed Lever Mount Latch with Deadbolt for Screen and Storm Doors (Matte Black)
MaxxGeek$68.57226 rev
Antique Interior Door Knobs Mortise Lock Set with Skeleton Key Locks Vintage Door Hardware Parts Fit 1-3/8 -1-3/4 Thick Doors 2-3/8 Backset Reversible Latch Matte Black 1 Pack
TPard$20.0165 rev
Ruigrit Vintage Mortise Lock Set for Interior Doors Antique Door Knobs with Heavy Duty Rustproof Zinc Alloy & Skeleton Key Fits 1-3/8 to 1-3/4 Entryway Replacement Matte Black
Ruigrit$21.02145 rev
Ruigrit Mortise Lock Set Interior Door with Vintage Door Knob Old Door Knob Replacement Fits 1-3/8 to 1-3/4 Doors Rustproof Zinc Alloy & Skeleton Key Oil Rubbed Bronze
Ruigrit$21.39145 rev
Trending
90-day click momentumTandefio 1 Set Double Cylinder Mortise Lock Iron Gate Ornamental Latch Set with 2-1/2 Backset 1 X 7-1/8 Faceplate Polish Brass(Right Hand Reverse Brass)
Tandefio$80.024.6★
MaxxGeek Antique Mortise Keyed Lock Set with Glasses Knobs. Replacing Vintage Door Knob Sets with Skeleton Keys Fits 1-3/8-1-3/4 Interior Doors Backset 2-3/8 Oil Rubbed Bronze 1 Pack
MaxxGeek$18.004.2★
Newliplace Mortise Lock Set for Interior Door Vintage Door Knobs with Lock and Skeleton Key Antique Door Knobs Oil Rubbed Bronze Finish
newliplace$21.394.2★
ConsitDone Mortise Keyed Door Knob Set for 1-3/8 to 1-3/4 Thick Interior Doors 2-3/8 Backset Includes 2 Classic Skeleton Keys (1 Matte Black)
ConsitDone$20.094.2★
Ruigrit Vintage Mortise Lock Set for Interior Doors Antique Door Knobs with Heavy Duty Rustproof Zinc Alloy & Skeleton Key Fits 1-3/8 to 1-3/4 Entryway Replacement Matte Black
Ruigrit$21.024.2★
What buyers say about mortise lock
What buyers praise and complain about, mined from review topics.What buyers love
“Fit perfect”
“Build quality feels solid”
“Installed with no problems”
“the lock mechanism is great quality”
“As described”
“GOOD DEAL”
“This looks very classy”
“Quick and easy”
“Strong and easy to replace and use”
“it works well”
What buyers complain about
“bad quality, stopped working after a few months”
“Doesn't stay locked”
“Too small”
“Breaks”
“the installation was a bit difficult”
“keeps falling apart”
“Terrible instructions”
“Not reversible like the description says”
“Hard to turn”
“Definitely did not meet expectations especially for the price”
Top return reasons
Common questions
- Is mortise lock profitable to sell on Amazon United States?
- The niche generates $388K/yr across 62 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -4.9%. Flapen's verdict: Worth a look (52/100).
- How competitive is the mortise lock niche?
- 25 brands and 92 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 73% of demand.
- What do buyers complain about in mortise lock?
- Top complaints mined from reviews: Quality-Overall, Locking Mechanism, Size-Overall. The return rate is 6.4% — above our launch gate.
- When does demand for mortise lock peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the mortise lock niche?
- Listings span $8.01–$377.65; the average listing price is $45.90 (sweet spot $15–$100). The average incumbent carries 719 reviews — the moat a new listing must climb.