15x21 frame
Skip itSoft demand (-12.0% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$25.83avg listing price — sweet spot $15–$100
Price range
Incredible$18.27–$40.06cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great7.6%search→purchase rate — share of searches ending in a sale
Returns
Okay3.0%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Market size
Okay$142K$142K/yr · 72K searches
Review moat
Bad5,905avg incumbent reviews — the moat a new listing must climb
Growth
Bad-12.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 15x21 frame is a $142K/yr Amazon United States market (72K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Skip it — 43/100.
Data updated Aug 2, 2026 · scored weekly · How we score niches
15x21 frame market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- $129K–$155K
- units × avg price
- Conversion rate
- 7.6%
- Avg BSR
- #364
- Page quality
- 0%
- Prime
- 75%
- Sponsored
- 90%
- Out of stock
- 4.5%
- Avg brand age
- 46 months
- Avg seller age
- 193 days
Competition & brand share
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
18
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
66%
Top 20: 100%
Open market
12%
- Americanflat28%
- QOTIB23%
- LaVie Home17%
- ArtToFrames9%
- A PLUS MAX7%
- JCJMY4%
- Open — no brand owns it (6 brands, 12%)
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — -12.0% search growth over the last 90 days.Peak months: Jan, Feb, Dec · busiest ÷ quietest = 2.4×
Top 15x21 frame search terms
- 15x21 frame17K/yr
- 21x15 frame6K/yr
- 15x21 picture frame10K/yr
- 15 x 21 frame5K/yr
- 21x15 puzzle frame6K/yr
- 15 x 21 picture frame8K/yr
- 15.5 x 21 frame3K/yr
- 15x21 puzzle frame8K/yr
- 21 x 15 frame4K/yr
- 21x15 picture frame6K/yr
Top 15x21 frame 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 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Americanflat 15x21 Poster Frame - Slim Molding - Black
Americanflat$20.824.6★13,107 rev

LaVie Home 15x21 Picture Frame for Wall Display 15x21 Black Picture Frame with HD Plexiglas 15 x 21 Poster Frame 1 Pack Display Frame for Vertical or Horizontal Classic Collection
LaVie Home$22.294.4★6,741 rev

QOTIB 15x21 Picture Frame Black for Wall Mounting Horizontal and Vertical Formats for Wall Hanging Wood 15x21 Frame Black 1 Pack
QOTIB$20.744.5★1,532 rev

QOTIB Wood 15x21 Picture Frame Black for Wall Hanging 15 x 21 Frame Photo Frame for Wall Horizontally or Vertically Black 1 Pack
QOTIB$21.384.5★761 rev

A PLUS MAX 15x21 Picture Frame Black Light Weight Wall Mount
A PLUS MAX$20.764.3★5,940 rev
Newest
by launch date
Fisnish 15x21 Picture Frame Classic Brown 15 x 21 Poster Frame for Horizontal or Vertical Wall Mounting 1 Pack
Fisnish$21.273,543 rev

GULETHUN 15x21 Frame Transitional Modern Design Picture Frames 15 by 21 Rustic Poster Frame for Home Decor Gold Vintage Photo Frame Horizontal or Vertical Display Choose Size & Color
GULETHUN$39.07216 rev

QOTIB Wood 15x21.25 Puzzles Frame Deep Brown for Wall Hanging 15 x 21.25 Picture Frame Poster Photo Frame for Wall Horizontally or Vertically Deep Brown 1 Pack
QOTIB$31.901,645 rev

Veleclo 15x21 Picture Frame for Wall Display 15x21 Black Picture Frame with Shatter Resistant Plexiglass Stable and Sturdy 15 x 21 Poster Frame for Wall Display Handpicked Gift Collection 1 Pack
Veleclo$21.181,411 rev

JCJMY 15x21.25 Puzzles Frame Black Wall Hanging 15 x 21.25 Picture Frame for 15 by 21.25 Poster Photo Canvas Picture Puzzles with Shatter Resistant Plexiglass Black
JCJMY$28.9411,068 rev
Trending
90-day click momentum
Fisnish 15x21 Picture Frame Classic Brown 15 x 21 Poster Frame for Horizontal or Vertical Wall Mounting 1 Pack
Fisnish$21.274.4★

GULETHUN 15x21 Frame Transitional Modern Design Picture Frames 15 by 21 Rustic Poster Frame for Home Decor Gold Vintage Photo Frame Horizontal or Vertical Display Choose Size & Color
GULETHUN$39.074.4★

QOTIB Wood 15x21.25 Puzzles Frame Deep Brown for Wall Hanging 15 x 21.25 Picture Frame Poster Photo Frame for Wall Horizontally or Vertically Deep Brown 1 Pack
QOTIB$31.904.3★

Americanflat 16x21 Poster Frame - Slim Molding - Black
Americanflat$24.484.6★

ArtToFrames 15x21 Inch Black Picture Frame This 1.25 Inch Custom Poster Frame is Soft Black - Comes with Economy Acrylic and Corrugated Backing (2WOM5180-15x21)
ArtToFrames$18.374.6★
What buyers say about 15x21 frame
What buyers praise and complain about, mined from review topics.What buyers love
“Good frame”
“Good value for the item”
“Perfect fit”
“Great Quality”
“Framing puzzles”
“Product as described”
“Easy to open and close and easy to hang”
“Worked out perfectly”
“Nice strong clips”
“Super easy to put in and hang up”
What buyers complain about
“the corners of the actual frame broken or chipped”
“Then one broke trying to press in the clips”
“An incredibly cheap. quality”
“my puzzle description on the box was wrong”
“Cheap feeling”
Top return reasons
Common questions
- Is 15x21 frame profitable to sell on Amazon United States?
- The niche generates $142K/yr across 20 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -12.0%. Flapen's verdict: Skip it (43/100).
- How competitive is the 15x21 frame niche?
- 12 brands and 18 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 84% of demand.
- What do buyers complain about in 15x21 frame?
- Top complaints mined from reviews: Frame Quality, Durability, Quality-Overall. The return rate is 3.0%.
- When does demand for 15x21 frame peak?
- Demand peaks in Jan–Feb–Dec; the busiest month runs 2.4× the quietest.
- What does it cost to enter the 15x21 frame niche?
- Listings span $18.27–$40.06; the average listing price is $25.83 (sweet spot $15–$100). The average incumbent carries 5,905 reviews — the moat a new listing must climb.