---
title: "Large Post Box — £64K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/large-post-box"
last_updated: "2026-07-31T09:57:24.648Z"
locale: en
meta:
description: "Niche score 58/100 · £64K/yr market · 52K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 58/100 · £64K/yr market · 52K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Large Post Box — £64K/yr Amazon UK Niche (2026) - Flapen"
---
# **large post box**
**Worth a look**
Shows a fragmented shelf (top 5 take 20% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 16Growth 26Conversion 34Competition 95Returns 87Price range 53Avg price 95Brand share 83Review moat 61Quality gap 68
**Competition**
**Incredible****20%**
top-5 click share — an open shelf
**Avg price**
**Incredible****£45.02**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****52%**
top-5 brand share — no brand owns this niche
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,048.77**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****£10.00–£168.98**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Okay****2.7%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+0.6%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£64K**
£64K/yr · 52K searches
According to Flapen's Amazon United Kingdom niche tracking, large post box is a £64K/yr Amazon United Kingdom market (52K searches/yr). The top 5 brands hold 52% of demand. Verdict: Worth a look — 58/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **large post box market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **£34K–£45K**
- units × avg price
- **Conversion rate**
- **2.7%**
- **Avg BSR**
- **#126**
- **Page quality**
- **0%**
- **Prime**
- **46%**
- **Sponsored**
- **91%**
- **Out of stock**
- **11.7%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **184 days**
## **Competition & brand share**
Clicks spread well past the top 5 (20% combined) — an open shelf where new products get seen.
**Brands**
**43 **▼falling
**Sellers**
**59**
**Top-5 brand share**
**52%**
Top 20: 86%
**Top-5 click share**
**20%**
Top 20: 49%
**Open market**
**44%**
- SONGMICS24% - Burg-Wächter9% - Black Country Metal Works7% - Assorted Collections7% - lisetar6% - BELOFAY5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +0.6% search growth over the last 90 days.
2K1K seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/large-post-box/trend)
## **Top large post box search terms**
- **free standing post box**11K/yr+22.6%0.3% conv. - **large post box**13K/yr-15.7%0.9% conv. - **black post box**10K/yr-0.5%2.9% conv. - **wall mounted letter box anthracite grey**6K/yr+18.5%1.5% conv. - **metal post box**6K/yr+18.3%3.4% conv. - **personalised post box**5K/yr-33.7%0.8% conv. - **modern mailbox**652/yr+6.1%0.0% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/large-post-box/search-terms)
## **Top large post box 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%2%£1K4%£3K6%£4K8%£5K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**lisetar Post Box Wall Mounted Steel Mail Box with Combination Lock - Weather-Resistant 3 Viewing Windows Rain Cover Lockable for Outside Black 40 x 25 x 10 cm**lisetar**£27.17**4.3★215 rev](https://www.amazon.co.uk/dp/B0F1F1VVCP) [2**SONGMICS Post Box Wall Mounted Letterbox Mailbox with Sloped Roof Copper Lock Cylinder Swivel Cap Viewing Windows Nameplate Easy to Install 9 x 21.8 x 31.8 cm Grey GMB032GZ01**SONGMICS**£15.62**4.3★2,562 rev](https://www.amazon.co.uk/dp/B0F9JZ5BFV) [3**Post Boxes Wall Mounted Waterproof Steel Mail Box with 2 Keys Lockable Weatherproof Large Letter Lostal Boxes for Outside or Door 9 x 21.5 x 32 cm size**GREABER**£15.63**4.5★409 rev](https://www.amazon.co.uk/dp/B0C38ZZJYK) [4**SONGMICS Modern Mailbox Lockable Wall-Mounted Post Letter Box with Newspaper Holder Easy to Install 9.5 x 29 x 31 cm Anthracite Grey GMB055G101**SONGMICS**£17.76**4.6★3,589 rev](https://www.amazon.co.uk/dp/B0G526WRGQ) [5**SONGMICS Post Box Wall Mounted Letterbox Mailbox with Sloped Roof Copper Lock Cylinder Swivel Cap Viewing Windows Nameplate Easy to Install 9 x 21.8 x 31.8 cm Black GMB032BZ01**SONGMICS**£15.71**4.3★2,562 rev](https://www.amazon.co.uk/dp/B0F9KFN755)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vintage Decor Black Ornate Freestanding Lockable Post Box 117cm H x 42cm W x 38cm D Letter Box Victorian Style Cast Aluminium Waterproof (Black)**Vintage Decor**£82.85**0 rev1mo ago](https://www.amazon.co.uk/dp/B0H59HFCMY) [**BELOFAY Floor Mounted Parcel Box Lockable Outdoor Parcel Delivery Box Weatherproof Steel Drop Box with Flip Lid & Secure Front Door Access Black 38.5D x 45W x 102.4Hcm**BELOFAY**£88.57**7 rev3mo ago](https://www.amazon.co.uk/dp/B0GTZSL5X5) [**SONGMICS Modern Mailbox Lockable Wall-Mounted Post Letter Box with Newspaper Holder Easy to Install 9.5 x 29 x 31 cm Anthracite Grey GMB055G101**SONGMICS**£17.76**3,589 rev3mo ago](https://www.amazon.co.uk/dp/B0G526WRGQ) [**Assorted Collections Wall Mounted Post Box with Newspaper Holder Lockable with 2 Keys Modern Design Easy to Install 37x10.5x37 cm (Black)**Assorted Collections**£24.87**5 rev9mo ago](https://www.amazon.co.uk/dp/B0FSTL8LXD) [**SONGMICS Post Box Wall Mounted Letterbox Mailbox with Sloped Roof Copper Lock Cylinder Swivel Cap Viewing Windows Nameplate Easy to Install 9 x 21.8 x 31.8 cm Grey GMB032GZ01**SONGMICS**£15.62**2,562 rev10mo ago](https://www.amazon.co.uk/dp/B0F9JZ5BFV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BELOFAY Floor Mounted Parcel Box Lockable Outdoor Parcel Delivery Box Weatherproof Steel Drop Box with Flip Lid & Secure Front Door Access Black 38.5D x 45W x 102.4Hcm**BELOFAY**£88.57**3.9★**▲ 263%**](https://www.amazon.co.uk/dp/B0GTZSL5X5) [**Vintage Decor Black Ornate Freestanding Lockable Post Box 117cm H x 42cm W x 38cm D Letter Box Victorian Style Cast Aluminium Waterproof (Black)**Vintage Decor**£82.85**0.0★**▲ 262%**](https://www.amazon.co.uk/dp/B0H59HFCMY) [**SONGMICS Modern Mailbox Lockable Wall-Mounted Post Letter Box with Newspaper Holder Easy to Install 9.5 x 29 x 31 cm Anthracite Grey GMB055G101**SONGMICS**£17.76**4.6★**▲ 252%**](https://www.amazon.co.uk/dp/B0G526WRGQ) [**Assorted Collections Wall Mounted Post Box with Newspaper Holder Lockable with 2 Keys Modern Design Easy to Install 37x10.5x37 cm (Black)**Assorted Collections**£24.87**5.0★**▲ 178%**](https://www.amazon.co.uk/dp/B0FSTL8LXD) [**Vintage Decor by DWD Weatherproof Post Box Plain Design Personalisable-Lockable Heavy Duty Secure Wall Mounted Letter Mail Post Box Post for Walls/Gates/Garages.Charming (Black with Gold Post Sign)**DWD**£33.18**4.4★**▲ 142%**](https://www.amazon.co.uk/dp/B0992ZCNBH)
**~~View all trending →~~**
## **What buyers say about large post box**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“Good quality, easy to assemble”*
**Size-Overall**14%
*“Easy fit”*
**Value For Money**12%
*“Excellent value for money”*
**Advertised Vs Actual Product**8%
*“AS ADVERTISED”*
**Strength**7%
*“Easy to install and very sturdy”*
**Assembly/Installation**6%
*“Easy to install”*
**Design-Overall**4%
*“Built great”*
**Ease Of Use**3%
*“Easy to use”*
**Color**3%
*“Lovely precise colour”*
**Mounting**2%
*“Easy to mount”*
### **What buyers complain about **
**Rusts/Corrodes**11%
*“Rusts”*
**Water Resistance**11%
*“Mail gets wet”*
**Size-Overall**9%
*“Too small”*
**Quality-Overall**8%
*“not very well made”*
**Locking Mechanism**7%
*“Not secure”*
**Leak-Proof**6%
*“Leaks”*
**Assembly/Installation**5%
*“A nightmare to assemble”*
**Moist/Dry**3%
*“Very Wet”*
**Mounting**3%
*“Once its mounted it doesnt move”*
**Instructions/User Manual/Troubleshooting**3%
*“The instructions are poor”*
### **Top return reasons **
**Size-Overall**60%
**Color**10%
**Locking Mechanism**4%
**Defective Material/Parts**3%
**Functionality-Overall**3%
**Quality-Overall**2%
**Strength**2%
**Water Resistance**1%
**Paint Quality**1%
**Ease Of Use**1%
## **Common questions**
- **Is large post box profitable to sell on Amazon United Kingdom?**
- The niche generates £64K/yr across 90 tracked products. 7 of 19 products launched in the last 360 days are still selling. 90-day search growth is +0.6%. Flapen's verdict: Worth a look (58/100).
- **How competitive is the large post box niche?**
- 43 brands and 59 sellers compete. The top 5 products take 20% of clicks and top 5 brands hold 52% of demand.
- **What do buyers complain about in large post box?**
- Top complaints mined from reviews: Rusts/Corrodes, Water Resistance, Size-Overall. The return rate is 1.4%.
- **When does demand for large post box peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the large post box niche?**
- Listings span £10.00–£168.98; the average listing price is £45.02 (sweet spot $15–$100). The average incumbent carries 1,049 reviews — the moat a new listing must climb.
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