Is door knob cover profitable to sell on Amazon United States?

The niche generates $296K/yr across 38 tracked products. 4 of 11 products launched in the last 360 days are still selling. 90-day search growth is +5.9%. Flapen's verdict: Skip it (48/100).

How competitive is the door knob cover niche?

17 brands and 34 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 74% of demand.

What do buyers complain about in door knob cover?

Top complaints mined from reviews: Size-Overall, Ease Of Use, Locking Mechanism. The return rate is 3.4%.

When does demand for door knob cover peak?

Demand peaks in Jul; the busiest month runs 1.5× the quietest.

What does it cost to enter the door knob cover niche?

Listings span $4.05–$27.16; the average listing price is $13.38 (sweet spot $15–$100). The average incumbent carries 3,497 reviews — the moat a new listing must climb.

door knob cover

Skip it

A deep review moat (3,497 avg reviews) — this niche doesn't clear our bar today.

Competition

Good43%

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

Avg price

Good$13.38

avg listing price — sweet spot $15–$100

Price range

Good$4.05–$27.16

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

Brand share

Good74%

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

Market size

Good$296K

$296K/yr · 602K searches

Conversion

Okay3.7%

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

Returns

Okay3.4%

return rate — above 5% kills the launch gate

Growth

Okay+5.9%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Review moat

Okay3,497.21

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, door knob cover is a $296K/yr Amazon United States market (602K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Jul. Verdict: Skip it — 48/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

door knob cover market data

Units sold / yr: 15K–20K; avg 750–1,000/product
Revenue / yr: $201K–$268K; units × avg price
Conversion rate: 3.7%
Avg BSR: #153
Page quality: 0%
Prime: 97%
Sponsored: 53%
Out of stock: 6.6%
Avg brand age: 35 months
Avg seller age: 175 days

Competition & brand share

The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 falling

Sellers

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

43%

Top 20: 83%

Open market

20%

Knobēz40%
Safety 1st11%
EUDEMON9%
Enjoy Cover8%
STRONGEST HOME7%
TIESOME6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +5.9% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 1.5×

Open Trend

Top door knob cover search terms

door knob cover83K/yr -5.0%4.9% conv.
knobez cabinet knob covers71K/yr +139.7%1.5% conv.
door knob covers37K/yr +7.9%7.0% conv.
knob covers42K/yr -17.0%1.8% conv.
cabinet knob covers36K/yr -29.6%0.4% conv.
doorknob cover8K/yr +18.1%4.3% conv.
silicone door knob cover8K/yr -9.3%5.8% conv.
knobzee cabinet knob covers10K/yr +60.6%1.7% conv.
candy cane cabinet handle covers25K/yr +903.1%0.9% conv.
rubber door knob cover6K/yr -8.1%6.9% conv.

All search terms

Top door knob cover 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

Knobz: Decorative Knob Covers - Red Peppermint - 12pk - Stretch Over Hardware Decorations Holiday-Winter-Christmas Kitchen-Bathroom-Dressers-Home

Knobēz$22.564.8★722 rev

Safety 1st Parent Grip Door Knob Covers White One Size 4 Count (Pack of 1) (HS3260600) Packaging may vary

Safety 1st$5.364.5★22,296 rev

Moms Choice Gold Awards Winner - EUDEMON 4 Pack Baby Safety Door Knob Covers Door Knob Locks(not Suit for All Door knobs)

EUDEMON$9.924.4★32,029 rev

Knobz: Decorative Cabinet Knob Covers - Skull - 12pk - Stretch Over Hardware Decorations Spooky-Halloween-Fall-Seasonal Kitchen-Bathroom-Dressers

Knobēz$22.994.8★115 rev

STRONGEST HOME Clear Silicone Door Knob Cover & Wall Protector Soft Rubber Handle Grip for Arthritis Support and Quiet Damage Prevention (2 Pack)

STRONGEST HOME$9.834.6★125 rev

Newest

by launch date

Knobz: Handlez Covers - Medium Candy Cane - 8pk - Stretch Over Hardware Decorations Holiday-Winter-Christmas Kitchen-Bathroom-Dressers-Home

Knobēz$27.162 rev

2mo ago

Enjoy Cover |Door Handle Grip Doorstop Knob Stopper Cover Single Pack Silicone Door Knob Grips Universal Size Protects Walls from Dents and Damage (Foggy Clear)

Enjoy Cover$7.8865 rev

3mo ago

Moxweyeni 12 Pcs Patriotic Star Cabinet Knob Covers 4th of July Silicone Cabinet Knob Kitchen Decor Red and Blue American National Decor Decorative Drawer Knobs for Home & Holiday Party Decoration

Moxweyeni$17.4735 rev

3mo ago

Knobz: Decorative Knob Covers - America - 12pk - Stretch Over Hardware Decorations Patriotic Seasonal-Summer Kitchen-Bathroom-Dressers-Home

Knobēz$18.6491 rev

4mo ago

STRONGEST HOME Clear Silicone Door Knob Cover & Wall Protector Soft Rubber Handle Grip for Arthritis Support and Quiet Damage Prevention (2 Pack)

STRONGEST HOME$9.83125 rev

5mo ago

What buyers say about door knob cover

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

What buyers love

Ease Of Use13%

“Easy to use”

Quality-Overall11%

“Great quality and easy to put on”

Size-Overall7%

“Fits perfectly”

Locking Mechanism7%

“The lock works great for what it's intended”

Advertised Vs Actual Product7%

“Works as expected”

Assembly/Installation7%

“Easy install”

Value For Money6%

“Worth it”

Grip5%

“comfortable to grip”

Security4%

“it is safe for sure”

Strength3%

“Solid product”

What buyers complain about

Size-Overall16%

“Doesnt fit”

Ease Of Use14%

“Difficult to remove”

Locking Mechanism9%

“Lock mechanism doesn't work”

Functionality-Overall7%

“Didnt work”

Durability4%

“Not sure of the durability”

Quality-Overall4%

“Poor quality control issue that other buyers have experienced as well”

Grip3%

“Very little pressure if any of some of them needed to turn the handle”

Age Suitability2%

“NOT toddler friendly”

Strength2%

“Flimsy plastic”

Value For Money2%

“I wish they werent so expensive”

Top return reasons

Size-Overall60%

Functionality-Overall8%

Locking Mechanism6%

Compatibility-Overall5%

Advertised Vs Actual Product3%

Ease Of Use3%

Defective Material/Parts3%

Mechanism Issues1%

Weight Heavy1%

Handle Quality1%

Common questions

Is door knob cover profitable to sell on Amazon United States?: The niche generates $296K/yr across 38 tracked products. 4 of 11 products launched in the last 360 days are still selling. 90-day search growth is +5.9%. Flapen's verdict: Skip it (48/100).
How competitive is the door knob cover niche?: 17 brands and 34 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in door knob cover?: Top complaints mined from reviews: Size-Overall, Ease Of Use, Locking Mechanism. The return rate is 3.4%.
When does demand for door knob cover peak?: Demand peaks in Jul; the busiest month runs 1.5× the quietest.
What does it cost to enter the door knob cover niche?: Listings span $4.05–$27.16; the average listing price is $13.38 (sweet spot $15–$100). The average incumbent carries 3,497 reviews — the moat a new listing must climb.