styrofoam
Skip itPrices mostly outside the sweet spot ($4.21–$15.46) — this niche doesn't clear our bar today.
Returns
Great1.0%return rate — above 5% kills the launch gate
Review moat
Great187.93avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay3.3%search→purchase rate — share of searches ending in a sale
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Avg price
Okay£9.24avg listing price — sweet spot $15–$100
Competition
Bad72%top-5 click share — a locked-up shelf
Growth
Bad-16.1%90-day search growth — must beat 0% to launch
Market size
Bad£51K£51K/yr · 169K searches
Price range
Bad£4.21–£15.46cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, styrofoam is a £51K/yr Amazon United Kingdom market (169K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Nov. Verdict: Skip it — 35/100.
Data updated Jul 26, 2026 · scored weekly · How we score niches
styrofoam market data
- Units sold / yr
- 5K–6K
- avg 250–500/product
- Revenue / yr
- £46K–£55K
- units × avg price
- Conversion rate
- 3.3%
- Avg BSR
- #2,447
- Page quality
- 0%
- Prime
- 79%
- Sponsored
- 71%
- Out of stock
- 6.0%
- Avg brand age
- 37 months
- Avg seller age
- 187 days
Competition & brand share
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.Brands
10 falling
Sellers
16
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
72%
Top 20: 100%
Open market
10%
- ASelected56%
- Generic10%
- YOUEON9%
- Triplast6%
- Culpitt5%
- STORM TRADING GROUP3%
- Open — no brand owns it (4 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 86 weeks — -16.1% search growth over the last 90 days.Peak months: Nov · busiest ÷ quietest = 1.9×
Top styrofoam search terms
- styrofoam50K/yr
- polystyrene block47K/yr
- polystyrene37K/yr
- styrofoam block18K/yr
- polystyrene foam7K/yr
- polystyrene blocks6K/yr
- styrofoam blocks4K/yr
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.
All 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Aselected 15Pcs Styrofoam Blocks For Porject 30 X 15 X 2.5Cm Polystyrene Craft Foam Blocks For Sculpting Modeling Diy Arts Crafting Kids Class Floral Arrangement(White)
ASelected£6.854.4★281 rev
Polystyrene Solid Foam Cubes 100mm (10cm) - Pack of 1 - For Crafts Sculpting Floral Arrangements & Centerpieces Floral Foam Blocks For Artificial Flowers Foam Sheets for Weddings Christmas & Easter
Generic£6.034.2★16 rev
YOUEON 12 PCS Craft Foam Blocks 20x10x5cm White Thick Foam Rectangle Blocks Polystyrene Bricks for Arts and Crafts Sculptures Modeling Packing School Home
YOUEON£13.114.5★261 rev
ASelected 10 Pack 255 X 200Mm Foam Board 5Mm Thick Polystyrene Foam Sheet for Model Making Mounting Photos Presentations Arts and Crafts Projects (White)
ASelected£5.894.5★56 rev
Culpitt 8 x 2 Round Cake Dummy Square Edge Cake Form Separator For Practice or Displays Smooth Polystyrene
Culpitt£4.214.6★689 rev
Newest
by launch date
LOMIMOS 8 Pcs White Craft Polystyrene Foam Block for Project 15 X 10 X 15cm
LOMIMOS£8.540 rev
6 Pack Foam Board for Crafts 20mm Thick Polystyrene Foam Sheet for DIY Crafts Modeling Sculpture Arts and Crafts Projects 30x20x2cm
ZYNERY£12.2733 rev
Polystyrene Solid Foam Cubes 100mm (10cm) - Pack of 1 - For Crafts Sculpting Floral Arrangements & Centerpieces Floral Foam Blocks For Artificial Flowers Foam Sheets for Weddings Christmas & Easter
Generic£6.0316 rev
ASelected 10 Pack 255 X 200Mm Foam Board 5Mm Thick Polystyrene Foam Sheet for Model Making Mounting Photos Presentations Arts and Crafts Projects (White)
ASelected£5.8956 rev
sanvpwsan 4pcs Floral Foam Polystyrene Blocks Bricks Perfect Flower Foam Block Ideal for Floristry Supplies Artificial & Fresh Flowers Weddings and Funeral Arrangements
sanvpwsan£7.0420 rev
Trending
90-day click momentumLOMIMOS 8 Pcs White Craft Polystyrene Foam Block for Project 15 X 10 X 15cm
LOMIMOS£8.540.0★
YOUEON 12 PCS Craft Foam Blocks 20x10x5cm White Thick Foam Rectangle Blocks Polystyrene Bricks for Arts and Crafts Sculptures Modeling Packing School Home
YOUEON£13.114.5★
6 Pack Foam Board for Crafts 20mm Thick Polystyrene Foam Sheet for DIY Crafts Modeling Sculpture Arts and Crafts Projects 30x20x2cm
ZYNERY£12.274.5★
Triplast Expanded Polystyrene Foam Sheets EPS 70 (10 Sheets 600 x 400 x 10mm Each) - BBA Certified Wall & Floor Insulation Board - Box Lining & Packaging Foam Board - White Blocks for DIY Projects
Triplast£12.554.5★
Triplast Expanded Polystyrene Foam Sheets EPS 70 (10 Sheets 600 x 400 x 25mm Each) - BBA Certified Wall & Floor Insulation Board - Box Lining & Packaging Foam Board - White Blocks for DIY Projects
Triplast£15.464.5★
What buyers say about styrofoam
What buyers praise and complain about, mined from review topics.What buyers love
“As advertised”
“Great foam boards for model makers”
“great value for money”
“Great product”
“Good value and seem nice and strong”
“Worked great on my model railway”
“Good for crafting with children”
“Lightweight and durable”
“very lightweight”
“Right thickness,”
What buyers complain about
“It breaks up”
“These are thin”
“Not paper covered”
“Poor quality”
“One downside is that it can get quite messy during cutting and shaping”
Top return reasons
Common questions
- Is styrofoam profitable to sell on Amazon United Kingdom?
- The niche generates £51K/yr across 14 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -16.1%. Flapen's verdict: Skip it (35/100).
- How competitive is the styrofoam niche?
- 10 brands and 16 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in styrofoam?
- Top complaints mined from reviews: Durability, Thickness, Paper Quality. The return rate is 1.0%.
- When does demand for styrofoam peak?
- Demand peaks in Nov; the busiest month runs 1.9× the quietest.
- What does it cost to enter the styrofoam niche?
- Listings span £4.21–£15.46; the average listing price is £9.24 (sweet spot $15–$100). The average incumbent carries 188 reviews — the moat a new listing must climb.