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one sided deadbolt

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 7Growth 42Conversion 51Competition 25Returns 25Price range 57Avg price 82Brand share 0Review moat 72Quality gap 55

Avg price

Great$17.61

avg listing price — sweet spot $15–$100

Review moat

Good604.43

avg incumbent reviews — the moat a new listing must climb

Price range

Good$5.15–$28.12

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Conversion

Good4.1%

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

Growth

Okay+13.9%

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

Competition

Bad70%

top-5 click share — a locked-up shelf

Returns

Bad5.1%

return rate — above 5% kills the launch gate

Market size

Bad$29K

$29K/yr · 40K searches

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, one sided deadbolt is a $29K/yr Amazon United States market (40K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 35/100.

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

one sided deadbolt market data

Units sold / yr
3K–3K
avg 100–250/product
Revenue / yr
$44K–$53K
units × avg price
Conversion rate
4.1%
Avg BSR
#411
Page quality
0%
Prime
71%
Sponsored
36%
Out of stock
0.0%
Avg brand age
56 months
Avg seller age
158 days

Competition & brand share

The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.

Brands

5 falling

Sellers

30

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

70%

Top 20: 100%

Open market

0%

  • Kwikset37%
  • SCHLAGE36%
  • Design House15%
  • Delaney10%
  • Stone Harbor Hardware2%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +13.9% search growth over the last 90 days.
1K600Spike '25Prime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Top one sided deadbolt search terms

  • one sided deadbolt lock13K/yr
  • one sided deadbolt11K/yr
  • single sided deadbolt9K/yr
  • deadbolt no key4K/yr
  • single sided door lock3K/yr
All search terms

Top one sided deadbolt 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.

0%10%$3K20%$6K30%$9K40%$11K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 14 tracked products in this niche — three views at once, no toggling.

What buyers say about one sided deadbolt

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

What buyers love

Value For Money26%

“Great product - best deal on the site”

Advertised Vs Actual Product26%

“Just what i needed”

Locking Mechanism13%

“Good Security for renters or anyone needing extra security”

Assembly/Installation13%

“It is easy to install”

Strength5%

“it is heavy duty”

Weight Heavy3%

“it is heavy duty”

Durability2%

“durability nowadays”

Size-Overall2%

“Fits well”

Quality-Overall2%

“I am absolutely blown away by the quality of this Delaney deadbolt”

Security2%

“Great for my needs for security”

What buyers complain about

Quality-Overall44%

“Poor Quality”

Size-Overall17%

“not for 2 3/4”

Mechanism Issues17%

“Backset not adjustable”

Instructions/User Manual/Troubleshooting6%

“no instructions were provided”

Top return reasons

Size-Overall32%
Functionality-Overall11%
Defective Material/Parts11%
Color9%
Advertised Vs Actual Product8%
Locking Mechanism8%
Compatibility-Overall6%
Assembly/Installation3%
Value For Money2%
Mechanism Issues2%

Common questions

Is one sided deadbolt profitable to sell on Amazon United States?
The niche generates $29K/yr across 14 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +13.9%. Flapen's verdict: Skip it (35/100).
How competitive is the one sided deadbolt niche?
5 brands and 30 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in one sided deadbolt?
Top complaints mined from reviews: Quality-Overall, Size-Overall, Mechanism Issues. The return rate is 5.1% — above our launch gate.
When does demand for one sided deadbolt peak?
Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the one sided deadbolt niche?
Listings span $5.15–$28.12; the average listing price is $17.61 (sweet spot $15–$100). The average incumbent carries 604 reviews — the moat a new listing must climb.