Is cylinder lock profitable to sell on Amazon United States?

The niche generates $83K/yr across 24 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is +8.4%. Flapen's verdict: Skip it (44/100).

How competitive is the cylinder lock niche?

18 brands and 46 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 65% of demand.

What do buyers complain about in cylinder lock?

Top complaints mined from reviews: Locking Mechanism, Quality-Overall, Size-Overall. The return rate is 4.7%.

When does demand for cylinder lock peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the cylinder lock niche?

Listings span $7.06–$26.38; the average listing price is $11.87 (sweet spot $15–$100). The average incumbent carries 1,625 reviews — the moat a new listing must climb.

cylinder lock

Skip it

A small market ($83K/yr) — this niche doesn't clear our bar today.

Brand share

Good65%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Good$7.06–$26.38

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Okay4.0%

search→purchase rate — share of searches ending in a sale

Review moat

Okay1,624.58

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay$11.87

avg listing price — sweet spot $15–$100

Competition

Okay57%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+8.4%

90-day search growth — must beat 0% to launch

Returns

Okay4.7%

return rate — above 5% kills the launch gate

Market size

Bad$83K

$83K/yr · 175K searches

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, cylinder lock is a $83K/yr Amazon United States market (175K searches/yr). The top 5 brands hold 65% of demand. Verdict: Skip it — 44/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

cylinder lock market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $71K–$95K; units × avg price
Conversion rate: 4.0%
Avg BSR: #64
Page quality: 0%
Prime: 96%
Sponsored: 75%
Out of stock: 7.1%
Avg brand age: 50 months
Avg seller age: 163 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 falling

Sellers

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

57%

Top 20: 96%

Open market

30%

NiceGo23%
RI-KEY SECURITY21%
Puroma10%
PRIME-LINE6%
Helonge5%
Admiral Locks5%

Demand & seasonality

Weekly Amazon search volume, last 60 weeks — +8.4% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top cylinder lock search terms

cylinder lock52K/yr +17.7%2.8% conv.
cylinder lock for storage unit43K/yr +7.2%4.9% conv.
lock cylinder20K/yr -11.7%1.0% conv.
lock cylinder with key12K/yr -1.9%2.0% conv.
cylinder lock for storage5K/yr +55.9%2.2% conv.
cylinder locks for storage units6K/yr +26.2%4.8% conv.
cylinder locks8K/yr +2.5%1.0% conv.
storage cylinder lock6K/yr +5.7%3.7% conv.
key cylinder replacement5K/yr -0.1%0.6% conv.
lock cylinder replacement4K/yr +35.4%1.0% conv.

All search terms

Top cylinder 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.

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

RiKey Security - Storage Cylinder Lock with 3 Tubular Keys for Roll-up Door Unit Secure 19mm

RI-KEY SECURITY$15.374.4★175 rev

Heavy-Duty 3/4 inches 19mm Roll-Up Door Cylinder Lock with 3 Alloy Keys for Storage Unit.Premium Self-Storage Locker Cylinder Lock Set (Includes 3 Keys) (Design 002 1 Count)

NiceGo$15.344.8★41 rev

Heavy-Duty 3/4 inches 19mm Roll-Up Door Cylinder Lock with 3 Alloy Keys for Storage Unit. Premium Self-Storage Locker Cylinder Lock Set Includes 3 Keys Design 001

NiceGo$15.114.8★41 rev

Puroma Keyed Padlock Stainless Steel Locker Lock Heavy Duty Locks with 3 Keys Waterproof Outdoors Gate Storage Unit Lock with 3/8 Inch Shackle for Warehouse Gym Storage Locker (1 Pack)

Puroma$9.084.6★8,187 rev

Prime-Line E 2103 Cylinder Lock 1-1/4 in. Single Pack

PRIME-LINE$9.084.2★2,321 rev

Newest

by launch date

Kwikset Discus Padlock with Boron Carbide Shackle High Security Outdoor Storage and Gate Lock 2-3/4 in Body 1 Pack Silver

Kwikset$16.3781 rev

4mo ago

Heavy-Duty 3/4 inches 19mm Roll-Up Door Cylinder Lock with 3 Alloy Keys for Storage Unit.Premium Self-Storage Locker Cylinder Lock Set (Includes 3 Keys) (Design 002 1 Count)

NiceGo$15.3441 rev

7mo ago

Heavy-Duty 3/4 inches 19mm Roll-Up Door Cylinder Lock with 3 Alloy Keys for Storage Unit. Premium Self-Storage Locker Cylinder Lock Set Includes 3 Keys Design 001

NiceGo$15.1141 rev

7mo ago

Admiral Locks Tubular Cam Lock Keyed Alike Removable Key RV Compartment Storage Lock Cabinet Locks (Chrome Pack of 2 5/8 Inch 90)

Admiral Locks$13.315,434 rev

10mo ago

Vending Machine Key Cylinder Lock for Storage Unit Cylinder Lock for Coke Snack Candy Soda Vending Machines Locks with 3 Tubular Keys

UPIQNG$7.278 rev

11mo ago

What buyers say about cylinder lock

What buyers praise and complain about, mined from review topics.

What buyers love

Locking Mechanism29%

“Super Convenient Locking”

Quality-Overall10%

“Excellent product”

Value For Money8%

“Great Deal”

Advertised Vs Actual Product6%

“As described”

Storage Capacity5%

“Perfect for POD storage container”

Security5%

“Feels More Secure”

Size-Overall5%

“Fit perfect”

Strength5%

“It balances sturdy construction with the simplicity of a one-key system”

Efficiency4%

“Works great”

Durability3%

“durable enough for long-term use in storage environments”

What buyers complain about

Locking Mechanism21%

“Worst lock I've ever bought”

Quality-Overall10%

“The lock is also poor quality”

Size-Overall10%

“maybe 1/2 too narrow”

Durability6%

“Failed within a single week of use”

Ease Of Use5%

“I wish I knew before I bought how easy this lock was to pick”

Hard Feel5%

“Initially, it was very rough and gritty to operate”

Compatibility-Overall3%

“I was a little worried because the description says not compatible”

Material Quality3%

“Cheap material flimsy af”

Rusts/Corrodes3%

“my existing locks started to rust”

Advertised Vs Actual Product2%

“advertised that it came with 3 keys. It only comes with 1.”

Top return reasons

Size-Overall57%

Locking Mechanism10%

Compatibility-Overall5%

Value For Money5%

Advertised Vs Actual Product4%

Functionality-Overall4%

Storage Capacity4%

Mechanism Issues2%

Quality-Overall2%

Defective Material/Parts1%

Common questions

Is cylinder lock profitable to sell on Amazon United States?: The niche generates $83K/yr across 24 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is +8.4%. Flapen's verdict: Skip it (44/100).
How competitive is the cylinder lock niche?: 18 brands and 46 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 65% of demand.
What do buyers complain about in cylinder lock?: Top complaints mined from reviews: Locking Mechanism, Quality-Overall, Size-Overall. The return rate is 4.7%.
When does demand for cylinder lock peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the cylinder lock niche?: Listings span $7.06–$26.38; the average listing price is $11.87 (sweet spot $15–$100). The average incumbent carries 1,625 reviews — the moat a new listing must climb.