door jam
Skip itA deep review moat (7,480 avg reviews) — this niche doesn't clear our bar today.
Avg price
Great$17.20avg listing price — sweet spot $15–$100
Conversion
Good6.0%search→purchase rate — share of searches ending in a sale
Price range
Good$4.49–$35.28cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good70%top-5 brand share — brands hold most of the demand
Returns
Good3.0%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Growth
Okay+0.6%90-day search growth — must beat 0% to launch
Market size
Bad$94K$94K/yr · 91K searches
Review moat
Bad7,479.95avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, door jam is a $94K/yr Amazon United States market (91K searches/yr). The top 5 brands hold 70% of demand. Verdict: Skip it — 43/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
door jam market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- $86K–$103K
- units × avg price
- Conversion rate
- 6.0%
- Avg BSR
- #34
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 90%
- Out of stock
- 0.0%
- Avg brand age
- 43 months
- Avg seller age
- 167 days
Competition & brand share
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
27
Top-5 brand share
70%
Top 20: 100%
Top-5 click share
63%
Top 20: 99%
Open market
24%
- AceMining27%
- suspension dudes15%
- Rerishom11%
- JZWBLILY11%
- MCSDFN6%
- SECURITYMAN6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +0.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top door jam 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 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
AceMining Upgraded Door Security Bar & Sliding Patio Bar Heavy Duty Stoppers Adjustable Jammer for Home Apartment Travel (1 Pack White)
AceMining$23.514.7★11,714 rev
Door Stoppers for Bottom of Door Premium Floor Rubber Door Stop Wedge Made in USA Heavy Duty Honeycomb Design for Carpet Tile Ideal for Home School Commercial Black 2-Pack
suspension dudes$5.534.6★2,015 rev
Rerishom Door Security Bar Door Stoppers Security bar Heavy Duty Door Lock Security Door Jammer Door Stopper for Apartment Hotel Room Screen Door Hardware Gate Lock Bar 2 Pack
Rerishom$35.284.7★3,444 rev
JZWBLILY Door Stoppers for Bottom of Door on Floor Premium Rubber Door Stopper Wedge Floor Sturdy Stackable Door Stops for Carpet Heavy Duty Door Door Gaps (Black 2 Pack)
JZWBLILY$5.014.5★5,082 rev
MCSDFN 4 Pcs First Responder Door Stop Emergency Police Door Jam with Nylon Cord Attachments for Law Enforcement Emergency Medical Services Firefighter Accessories Black
MCSDFN$10.234.7★54 rev
Newest
by launch dateDoor Stoppers for Bottom of Door Premium Floor Rubber Door Stop Wedge Made in USA Heavy Duty Honeycomb Design for Carpet Tile Ideal for Home School Commercial Black 2-Pack
suspension dudes$5.532,015 rev
Door Stoppers for Bottom of Door Premium Floor Rubber Door Stop Wedge Made in USA Heavy Duty Honeycomb Design for Carpet Tile Ideal for Home School Commercial Gray 2-Pack
suspension dudes$5.492,015 rev
MCSDFN 4 Pcs First Responder Door Stop Emergency Police Door Jam with Nylon Cord Attachments for Law Enforcement Emergency Medical Services Firefighter Accessories Black
MCSDFN$10.2354 rev
Door Security Bar - Upgraded Anti-Slip Base Heavy Duty Burglar Door Stopper Stick 28-52 Adjustable Barricade Safety Jammer Stoper for Front Door Patio Sliding Glass Window Black
HANGMAICOME$18.38448 rev
Sliding Glass Door Security Bar Patio Door Barricade Security Bar Apartment BarSliding Door Security Bar Door Jammer White 1 Pack
Enayplon$13.13575 rev
Trending
90-day click momentum
AceMining 1 Pack Door Security Bar Patio Door Lock 20-50 in Pink
AceMining$24.884.7★
Door Stoppers for Bottom of Door Premium Floor Rubber Door Stop Wedge Made in USA Heavy Duty Honeycomb Design for Carpet Tile Ideal for Home School Commercial Black 2-Pack
suspension dudes$5.534.6★
4 Pack Door Stoppers Rubber for Bottom of Door Rubber Door Stopper Wedge Sturdy Stackable Door Stops for Floor
Utron$5.744.4★
AIMAXINKE Door Stoppers for Bottom of Door- Large Spring Heavy Duty Door Stop Wedge 3 High Adjustable Metal Tall Doorstop Strongest Rubber Grip Suits Carpet Tile Home School +1 Wall Protector
AIMAXINKE$9.834.5★
MCSDFN 4 Pcs First Responder Door Stop Emergency Police Door Jam with Nylon Cord Attachments for Law Enforcement Emergency Medical Services Firefighter Accessories Black
MCSDFN$10.234.7★
What buyers say about door jam
What buyers praise and complain about, mined from review topics.What buyers love
“Good security”
“The build quality is excellent”
“stays in place without any issues”
“As described”
“Very sturdy and easy to set up”
“Ease of use”
“Works great”
“Excellent value”
“Easy to assemble”
“didnt break”
What buyers complain about
“Too short”
“Doesn't work as described”
“Not strong enough”
“Has no grip on the floor”
“Bad quality”
“The lock is also hard to reach”
“Broke quickly”
“too thick”
“it wouldnt open”
“Hard to put together”
Top return reasons
Common questions
- Is door jam profitable to sell on Amazon United States?
- The niche generates $94K/yr across 21 tracked products. 90-day search growth is +0.6%. Flapen's verdict: Skip it (43/100).
- How competitive is the door jam niche?
- 16 brands and 27 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 70% of demand.
- What do buyers complain about in door jam?
- Top complaints mined from reviews: Size-Overall, Functionality-Overall, Strength. The return rate is 3.0%.
- When does demand for door jam peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the door jam niche?
- Listings span $4.49–$35.28; the average listing price is $17.20 (sweet spot $15–$100). The average incumbent carries 7,480 reviews — the moat a new listing must climb.