---
title: "Cardboard Boxes for Posting — £163K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/business-industry-science/cardboard-boxes-for-posting"
last_updated: "2026-07-31T08:56:08.079Z"
locale: en
meta:
description: "Niche score 54/100 · £163K/yr market · 298K searches/yr · £12.32 avg price. Soft demand (-5.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · £163K/yr market · 298K searches/yr · £12.32 avg price. Soft demand (-5.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Cardboard Boxes for Posting — £163K/yr Amazon UK Niche (2026) - Flapen"
---
# **cardboard boxes for posting**
**Worth a look**
Shows low returns (0.1%), but soft demand (-5.3% this quarter) keeps it on the watch list.
Market size 34Growth 22Conversion 54Competition 72Returns 100Price range 52Avg price 53Brand share 63Review moat 44Quality gap 53
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Competition**
**Good****42%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****4.4%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Good****£12.32**
avg listing price — sweet spot $15–$100
**Price range**
**Good****£4.01–£26.84**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****2,088.14**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£163K**
£163K/yr · 298K searches
**Growth**
**Bad****-5.3%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, cardboard boxes for posting is a £163K/yr Amazon United Kingdom market (298K searches/yr). The top 5 brands hold 67% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cardboard boxes for posting market data**
- **Units sold / yr**
- **13K–15K**
- avg 250–500/product
- **Revenue / yr**
- **£154K–£185K**
- units × avg price
- **Conversion rate**
- **4.4%**
- **Avg BSR**
- **#41**
- **Page quality**
- **0%**
- **Prime**
- **27%**
- **Sponsored**
- **73%**
- **Out of stock**
- **7.4%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **176 days**
## **Competition & brand share**
The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**22 **▲rising
**Sellers**
**32**
**Top-5 brand share**
**67%**
Top 20: 99%
**Top-5 click share**
**42%**
Top 20: 76%
**Open market**
**28%**
- W.E. Roberts21% - Pluto Packaging15% - Triplast14% - All-Pack Solutions11% - StorePAK6% - Direct Global Trading5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.3% search growth over the last 90 days.
7K5KHoliday '24Spike '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/business-industry-science/cardboard-boxes-for-posting/trend)
## **Top cardboard boxes for posting search terms**
- **boxes for posting**92K/yr-19.1%2.6% conv. - **cardboard boxes for posting**69K/yr-16.3%2.1% conv. - **double wall boxes**12K/yr+71.2%0.9% conv. - **heavy duty boxes**16K/yr+16.6%1.3% conv. - **medium moving boxes**12K/yr+35.4%6.5% conv. - **shipping boxes medium**15K/yr-15.2%2.9% conv. - **medium cardboard boxes**11K/yr+7.6%4.8% conv. - **packing boxes for books**9K/yr+18.2%6.1% conv. - **large postage box**12K/yr-25.5%1.2% conv. - **medium boxes**8K/yr+4.0%5.3% conv. [**All search terms **](https://flapen.com/research/uk/business-industry-science/cardboard-boxes-for-posting/search-terms)
## **Top cardboard boxes for posting 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%£5K6%£10K9%£15K12%£20K101001K10K100K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**All-Pack Solutions 10 Royal Mail Small Parcel Postal mailing Boxes 350x250x160mm (Deep Option)**All-Pack Solutions**£6.80**4.5★2,660 rev](https://www.amazon.co.uk/dp/B00G6LJRB0) [2**Triplast 203 x 152 x 152mm Small Single Wall 8x6x6 Shipping Mailing Postal Gift Cuboid Cardboard Boxes (Pack of 5)**Triplast**£4.01**4.5★511 rev](https://www.amazon.co.uk/dp/B01DSYR89A) [3**10 Quality Strong 47cm x 31.5cm x 25cm 44 litres Packing Shipping House Moving Cardboard Boxes**Pluto Packaging**£10.01**4.4★9,177 rev](https://www.amazon.co.uk/dp/B08J3MTFCK) [4**10 Strong Large Cardboard Storage Packing Moving House Boxes with Carry Handles and Room List Ideal for Storage Moving and Packing 18 x 11 x 11 internal. Made in the UK**W.E. Roberts**£9.84**4.3★3,966 rev](https://www.amazon.co.uk/dp/B0CJRQZHY4) [5**10 x Parcel Postal Mailing Boxes 350x250x160mm | Small Parcel Packing Shipping Cardboard Boxes**Sunrise Packaging**£7.03**4.5★192 rev](https://www.amazon.co.uk/dp/B0D2Y96PYJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**25 Boxes of 8x6x4 Inch Small Cardboard Boxes Pack of 25 | Single Wall Shipping Boxes Mailing & Postal Boxes | Strong Corrugated Packing Boxes for Moving Storage Royal Mail Small Parcel**Apex Business Supplies**£8.20**16 rev2mo ago](https://www.amazon.co.uk/dp/B0GYSQ5QST) [**BH | Large Cardboard Moving Boxes | 5-Pack | 52cm x 30cm x 30cm | 47 Litres | Strong Reusable Packing Boxes | House Moving Packing with Carry Handles and Room List Checkboxes - by Best House**Best House Another Fine Product**£8.18**210 rev6mo ago](https://www.amazon.co.uk/dp/B0GCSBWMPM) [**SAFARIPAK - 10 Pack Strong Large Reusable Cardboard Storage Packing Moving House Boxes 52cm x 30cm x 30cm with Carry Handles and Room List Checkboxes - 47 Litres Capacity**SAFARIPAK**£12.03**1,316 rev1y ago](https://www.amazon.co.uk/dp/B0FC6XCMVC) [**Small Cardboard Boxes Brown Corrugated Shipping Boxes 7.3x5 x1.8 Inches (18.5x12.5x4.5 cm) Small Parcel Boxes Packaging Mailing Boxes for Business Posting Storing or Gift(Pack of 10)**Trendecor**£7.56**30 rev1y ago](https://www.amazon.co.uk/dp/B0DSFVC26G) [**W.E. Roberts Strong Double Wall Cardboard Boxes (Pack of 15) - Boxes for posting Boxes for moving house Packing boxes Postal Shipping Boxes (305mm x 229mm x 229mm (12 x 9 x 9))**W.E. Roberts**£14.01**416 rev1y ago](https://www.amazon.co.uk/dp/B0DKTJCJDS)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**25 Boxes of 8x6x4 Inch Small Cardboard Boxes Pack of 25 | Single Wall Shipping Boxes Mailing & Postal Boxes | Strong Corrugated Packing Boxes for Moving Storage Royal Mail Small Parcel**Apex Business Supplies**£8.20**4.4★**▲ 306%**](https://www.amazon.co.uk/dp/B0GYSQ5QST) [**Venuscello 1 x Double Wall Cardboard Boxes 61cm x 61cm x 61cm Heavy Duty Shipping Posting Box for Packaging Parcel & Moving House - 24 X 24 X 24**Venuscello**£11.03**4.5★**▲ 236%**](https://www.amazon.co.uk/dp/B0GMX5KMLL) [**ZYBUX - 12x9x9 - Brown Single Box Wall Shipping Mailing Postal Parcel Easy to Assemble Cardboard Parcel Boxes Idal for Cardboard Gift box Packing Boxes for Moving House - Pack of 10**ZYBUX**£10.04**4.5★**▲ 188%**](https://www.amazon.co.uk/dp/B0CNTKJD3X) [**Strong Cardboard Storage Boxes for Posting Small & Large Parcels Moving Bulk Gifts Single Wall Eco Friendly Shipping Cartons Corrugated Boxes (9x6x4 229x152x102mm Pack of 5)**Generic**£5.75**3.7★**▲ 180%**](https://www.amazon.co.uk/dp/B0BTZ42534) [**Small Cardboard Boxes Brown Corrugated Shipping Boxes 7.3x5 x1.8 Inches (18.5x12.5x4.5 cm) Small Parcel Boxes Packaging Mailing Boxes for Business Posting Storing or Gift(Pack of 10)**Trendecor**£7.56**4.1★**▲ 130%**](https://www.amazon.co.uk/dp/B0DSFVC26G)
**~~View all trending →~~**
## **What buyers say about cardboard boxes for posting**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Strength**26%
*“Good and strong”*
**Quality-Overall**16%
*“Excellent Product”*
**Size-Overall**13%
*“Fits well”*
**Value For Money**12%
*“Excellent value”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Storage Capacity**4%
*“Large capacity”*
**Portability**3%
*“be able to carry”*
**Assembly/Installation**3%
*“Easy assembly”*
**Ease Of Use**3%
*“Came in very handy”*
**Durability**1%
*“Very reliable”*
### **What buyers complain about **
**Strength**29%
*“Too flimsy”*
**Size-Overall**26%
*“NOT LARGE”*
**Quality-Overall**11%
*“boxes are bad quality”*
**Advertised Vs Actual Product**4%
*“is misleading”*
**Thickness**4%
*“Not very thick”*
**Adhesion/Stickiness**3%
*“It sticks, kind of,”*
**Value For Money**2%
*“couldve been better if cheaper”*
**Durability**2%
*“It breaks easily”*
**Weight Heavy**1%
*“become so heavy”*
**Ease Of Use**1%
*“Not practical for everything”*
### **Top return reasons **
**Size-Overall**76%
**Strength**6%
**Quality-Overall**3%
**Advertised Vs Actual Product**2%
**Water Resistance**1%
**Value For Money**1%
**Defective Material/Parts**1%
**Thin**1%
**Moist/Dry**1%
**Functionality-Overall**1%
## **Common questions**
- **Is cardboard boxes for posting profitable to sell on Amazon United Kingdom?**
- The niche generates £163K/yr across 44 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -5.3%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the cardboard boxes for posting niche?**
- 22 brands and 32 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in cardboard boxes for posting?**
- Top complaints mined from reviews: Strength, Size-Overall, Quality-Overall. The return rate is 0.1%.
- **When does demand for cardboard boxes for posting peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the cardboard boxes for posting niche?**
- Listings span £4.01–£26.84; the average listing price is £12.32 (sweet spot $15–$100). The average incumbent carries 2,088 reviews — the moat a new listing must climb.
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