Is styrofoam profitable to sell on Amazon United States?

The niche generates $404K/yr across 61 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is -7.8%. Flapen's verdict: Worth a look (55/100).

How competitive is the styrofoam niche?

31 brands and 44 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 62% of demand.

What do buyers complain about in styrofoam?

Top complaints mined from reviews: Size-Overall, Value For Money, Quality-Overall. The return rate is 3.1%.

When does demand for styrofoam peak?

Demand peaks in Nov; the busiest month runs 1.7× the quietest.

What does it cost to enter the styrofoam niche?

Listings span $5.79–$33.73; the average listing price is $17.23 (sweet spot $15–$100). The average incumbent carries 993 reviews — the moat a new listing must climb.

styrofoam

Worth a look

Shows a fragmented shelf (top 5 take 32% of clicks), but soft demand (-7.8% this quarter) keeps it on the watch list.

Competition

Great32%

top-5 click share — an open shelf

Avg price

Great$17.23

avg listing price — sweet spot $15–$100

Brand share

Good62%

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

Price range

Good$5.79–$33.73

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

Review moat

Good992.59

avg incumbent reviews — the moat a new listing must climb

Market size

Good$404K

$404K/yr · 892K searches

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Returns

Okay3.1%

return rate — above 5% kills the launch gate

Conversion

Okay2.6%

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

Growth

Bad-7.8%

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

According to Flapen's Amazon United States niche tracking, styrofoam is a $404K/yr Amazon United States market (892K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Nov. Verdict: Worth a look — 55/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

styrofoam market data

Units sold / yr: 30K–40K; avg 250–500/product
Revenue / yr: $517K–$689K; units × avg price
Conversion rate: 2.6%
Avg BSR: #74
Page quality: 0%
Prime: 98%
Sponsored: 95%
Out of stock: 4.1%
Avg brand age: 44 months
Avg seller age: 169 days

Competition & brand share

Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.

Brands

31 falling

Sellers

Top-5 brand share

62%

Top 20: 94%

Top-5 click share

32%

Top 20: 71%

Open market

34%

Crafare27%
SilverlakeLLC14%
FLOFARE9%
AYNAUHX8%
Super Z Outlet5%
Ortarco4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -7.8% search growth over the last 90 days.

Peak months: Nov · busiest ÷ quietest = 1.7×

Open Trend

Top styrofoam search terms

styrofoam318K/yr +10.6%2.4% conv.
styrofoam block234K/yr -35.3%4.4% conv.
styrofoam sheets93K/yr -18.9%1.5% conv.
styrofoam blocks46K/yr +26.2%3.0% conv.
large styrofoam blocks23K/yr +31.7%1.0% conv.
foam blocks for crafts30K/yr -21.4%2.8% conv.
polystyrene foam17K/yr +3.9%1.1% conv.
craft foam block16K/yr +2.4%3.1% conv.
polystyrene15K/yr +4.7%0.4% conv.
styrofoam blocks for crafts12K/yr -10.3%3.5% conv.

All search terms

Top styrofoam 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

Crafare 8 Pack Craft Foam Blocks 6X4X2in Polystyrene Brick Rectangle for Arts School Projects Sculptures Floral Arrangements Modeling and Centerpieces

Crafare$15.044.5★493 rev

Upgraded 6 Pack Floral Flower Foam Blocks Green Plant Foam for Flower Arrangements Wet & Dry Florist Foam Styrofoam for Fresh and Artificial Flowers (5.5L X 3.1W X 1.6H)

AYNAUHX$9.544.4★1,354 rev

FLOFARE Pack of 3 Floral Foam Blocks Each (6L x 3W x 1.75H) Green Wet & Dry Flower Foam for Fresh & Artificial Flower Arrangement Plant Foam Florist Supplies for DIYs Arts Crafts & Weddings

FLOFARE$7.094.4★2,637 rev

Super Z Outlet Foam Rectangle Blank Polystyrene Sheet Boards for Arts and Crafts Blank White DIY Project Party Decorations (16 x 11 x 2 Inches) (3)

Super Z Outlet$22.304.6★162 rev

Crafare 4X4X2 Inch Craft Foam Blocks 24 Pack Polystyrene Brick for Arts and Crafts School Projects Sculptures Floral Arrangements Modeling Holiday Centerpieces

Crafare$19.514.5★493 rev

Newest

by launch date

8 Pcs Craft Foam Blocks 6x4x2 Inch Styrofoam Blocks White Foam Bricks for School Projects Sculpting Modeling Floral Arrangements Packing and DIY Crafts - Lightweight and Durable (6x4x2inch-8pcs)

LUOKER$13.878 rev

4mo ago

Pack of 6 Floral Foam Blocks 8.9x4.1x2.7 Dry and Wet Flower Foam for Fresh and Artificial Flowers Florist Styrofoam Flower Arrangements Supplies Decorations for Wedding Birthdays and Garden

gorsent$19.99208 rev

8mo ago

Mkobon 6 Pack Floral Foam Blocks Green Plant Dry & Wet Flower Arrangement Foam Styrofoam Block for Fresh and Artificial Flowers Decor Supplies for Wedding Home Garden (5.5L x 3.1W x 1.6H)

Mkobon$8.94181 rev

10mo ago

Ortarco 3 Pack Floral Foam Blocks (5.5 x 3.1 x 1.7) Wet and Dry Flower Foam for Flower Arrangements Supplies Flower Foam Blocks for Fresh or Artificial Flowers in Art Crafts and DIY Decorations

Ortarco$5.79584 rev

1y ago

Upgraded 6 Pack Floral Flower Foam Blocks Green Plant Foam for Flower Arrangements Wet & Dry Florist Foam Styrofoam for Fresh and Artificial Flowers (5.5L X 3.1W X 1.6H)

AYNAUHX$9.541,354 rev

1y ago

What buyers say about styrofoam

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

What buyers love

Quality-Overall19%

“Its great quality and so easy to use and customize”

Advertised Vs Actual Product16%

“As described”

Size-Overall10%

“Convenient size”

Value For Money8%

“Good Value”

Ease Of Use7%

“Ease of use”

Durability5%

“Durable, easy to use”

Strength3%

“Very sturdy”

Foam3%

“Great foam”

Design-Overall3%

“Love the design”

Efficiency3%

“They work great best glass wrap”

What buyers complain about

Size-Overall37%

“Extremely small”

Value For Money11%

“Too expensive”

Quality-Overall7%

“Poor Quality Control”

Advertised Vs Actual Product6%

“Not as shown”

Durability5%

“falls apart easily”

Thickness4%

“They are thin as some reports have been”

Strength2%

“These are flimsy”

Hard Feel2%

“They were rather hard”

Ease Of Cleaning1%

“They are messy”

Thin1%

“they are so thin”

Top return reasons

Size-Overall69%

Value For Money8%

Advertised Vs Actual Product6%

Material Quality3%

Functionality-Overall2%

Defective Material/Parts2%

Thickness1%

Quality-Overall1%