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55

polytunnel

Worth a look

Shows low returns (0.5%), but weak search conversion (0.5%) keeps it on the watch list.

Market size 27Growth 19Conversion 6Competition 81Returns 97Price range 59Avg price 89Brand share 51Review moat 73Quality gap 96

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Quality gap

Incredible3.9★

avg incumbent rating — lower means beatable quality

Avg price

Great£62.32

avg listing price — sweet spot $15–$100

Competition

Great34%

top-5 click share — an open shelf

Review moat

Good573.24

avg incumbent reviews — the moat a new listing must climb

Price range

Good£4.36–£149.55

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

Brand share

Good74%

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

Market size

Okay£113K

£113K/yr · 362K searches

Growth

Bad-12.0%

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

Conversion

Bad0.5%

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

According to Flapen's Amazon United Kingdom niche tracking, polytunnel is a £113K/yr Amazon United Kingdom market (362K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Mar–Apr–May. Verdict: Worth a look — 55/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

polytunnel market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
£187K–£249K
units × avg price
Conversion rate
0.5%
Avg BSR
#135
Page quality
0%
Prime
48%
Sponsored
78%
Out of stock
2.9%
Avg brand age
43 months
Avg seller age
188 days

Competition & brand share

Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.

Brands

15 falling

Sellers

27

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

34%

Top 20: 69%

Open market

20%

  • Outsunny33%
  • VOUNOT13%
  • VonHaus12%
  • CHRISTOW9%
  • Panana7%
  • Navoys6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -12.0% search growth over the last 90 days.
13K8KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Mar, Apr, May · busiest ÷ quietest = 3.3×

Top polytunnel search terms

  • polytunnel159K/yr
  • polytunnel greenhouse39K/yr
  • poly tunnels for gardens30K/yr
  • poly tunnel32K/yr
  • poly tunnels for allotments21K/yr
  • polly tunnel13K/yr
  • small polytunnel14K/yr
  • mini polytunnel11K/yr
  • garden polytunnel9K/yr
  • polytunnel frame only6K/yr
All search terms

Top polytunnel 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%3%£3K6%£7K9%£10K12%£14K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about polytunnel

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

What buyers love

Value For Money21%

“Good for the money”

Quality-Overall18%

“Excellent product”

Assembly/Installation15%

“Easy to install”

Strength8%

“Very sturdy”

Size-Overall7%

“Good size”

Plant Growth6%

“Plants have started to grow well”

Ease Of Use3%

“easy to use”

Advertised Vs Actual Product2%

“As described”

Material Quality2%

“Material of cover is good”

Durability2%

“The cover initially looked strong and durable,”

What buyers complain about

Quality-Overall17%

“Awful quality”

Durability14%

“broke into pieces”

Strength13%

“Not strong”

Size-Overall8%

“Size small”

Instructions/User Manual/Troubleshooting6%

“Wrong instruction sent with item”

Value For Money4%

“too expensive”

Material Quality4%

“Plastic cover is very low quality”

Assembly/Installation4%

“Useless - assembled as per the instructions”

Leak-Proof3%

“It's leaking every where”

Metal Quality2%

“Super cheap metal”

Top return reasons

Size-Overall36%
Strength11%
Defective Material/Parts8%
Quality-Overall8%
Durability6%
Material Quality5%
Advertised Vs Actual Product4%
Assembly/Installation3%
Thin2%
Flexibility2%

Common questions

Is polytunnel profitable to sell on Amazon United Kingdom?
The niche generates £113K/yr across 54 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -12.0%. Flapen's verdict: Worth a look (55/100).
How competitive is the polytunnel niche?
15 brands and 27 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in polytunnel?
Top complaints mined from reviews: Quality-Overall, Durability, Strength. The return rate is 0.5%.
When does demand for polytunnel peak?
Demand peaks in Mar–Apr–May; the busiest month runs 3.3× the quietest.
What does it cost to enter the polytunnel niche?
Listings span £4.36–£149.55; the average listing price is £62.32 (sweet spot $15–$100). The average incumbent carries 573 reviews — the moat a new listing must climb.