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styrofoam cups 16 oz

Worth a look

Shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 58Growth 30Conversion 87Competition 52Returns 98Price range 92Avg price 95Brand share 32Review moat 72Quality gap 47

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Avg price

Incredible$38.03

avg listing price — sweet spot $15–$100

Price range

Great$12.85–$78.96

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

Conversion

Great10.1%

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

Review moat

Good613.43

avg incumbent reviews — the moat a new listing must climb

Market size

Good$450K

$450K/yr · 117K searches

Competition

Good54%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay86%

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

Growth

Okay+3.6%

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

According to Flapen's Amazon United States niche tracking, styrofoam cups 16 oz is a $450K/yr Amazon United States market (117K searches/yr). The top 5 brands hold 86% of demand. Verdict: Worth a look — 60/100.

Data updated Jul 13, 2026 · scored weekly · How we score niches

styrofoam cups 16 oz market data

Units sold / yr
15K–20K
avg 500–750/product
Revenue / yr
$570K–$761K
units × avg price
Conversion rate
10.1%
Avg BSR
#794
Page quality
0%
Prime
52%
Sponsored
57%
Out of stock
2.3%
Avg brand age
54 months
Avg seller age
143 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 falling

Sellers

124

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

54%

Top 20: 99%

Open market

10%

  • DART40%
  • Mr Miracle15%
  • Shop Square14%
  • Framo10%
  • Concession Essentials8%
  • Genuine Joe4%
  • Open — no brand owns it (4 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — +3.6% search growth over the last 90 days.
3K2KSpike '25Spike '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Top styrofoam cups 16 oz search terms

  • styrofoam cups 16 oz39K/yr
  • foam cups 16 oz24K/yr
  • 16 oz styrofoam cups22K/yr
  • 16 oz foam cups15K/yr
  • 16oz styrofoam cups10K/yr
  • 16oz foam cups5K/yr
  • 16 ounce styrofoam cups3K/yr
All search terms

Top styrofoam cups 16 oz 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%5%$22K10%$45K15%$67K20%$90K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

What buyers say about styrofoam cups 16 oz

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

What buyers love

Size-Overall16%

“Great size”

Quality-Overall14%

“Good quality”

Value For Money13%

“Pricing was affordable”

Strength11%

“They are sturdy”

Durability9%

“Durable”

Temperature Retention7%

“they are perfect for keeping hot drinks hot”

Leak-Proof6%

“They are leak proof for the most part”

Ease Of Use4%

“For everyday use at home or in a small office, they just make things simple and easy”

Safety Standards2%

“Safety”

Advertised Vs Actual Product2%

“Item is just as described”

What buyers complain about

Leak-Proof29%

“All leaked except one”

Quality-Overall15%

“Trash”

Value For Money11%

“Better than having to go out shopping with the price of gas being so high”

Strength8%

“so a little more flimsy”

Durability6%

“liquid it almost feels like it will break”

Thickness5%

“Thin”

Thin3%

“Too thin”

Smell3%

“it has a funny smell even after washing it”

Functionality-Overall2%

“They are not going to work”

Size-Overall2%

“Larger than anticipated”

Top return reasons

Size-Overall46%
Advertised Vs Actual Product18%
Value For Money9%
Leak-Proof5%
Quality-Overall5%
Material Quality3%
Ease Of Use2%
Thin2%
Defective Material/Parts1%
Functionality-Overall1%

Common questions

Is styrofoam cups 16 oz profitable to sell on Amazon United States?
The niche generates $450K/yr across 21 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +3.6%. Flapen's verdict: Worth a look (60/100).
How competitive is the styrofoam cups 16 oz niche?
10 brands and 124 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 86% of demand.
What do buyers complain about in styrofoam cups 16 oz?
Top complaints mined from reviews: Leak-Proof, Quality-Overall, Value For Money. The return rate is 0.4%.
When does demand for styrofoam cups 16 oz peak?
Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the styrofoam cups 16 oz niche?
Listings span $12.85–$78.96; the average listing price is $38.03 (sweet spot $15–$100). The average incumbent carries 613 reviews — the moat a new listing must climb.