---
title: "Ruler 30cm Folding — £73K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/stationery-office-supplies/ruler-30cm-folding"
last_updated: "2026-07-31T11:41:19.490Z"
locale: en
meta:
description: "Niche score 53/100 · £73K/yr market · 264K searches/yr. Prices mostly outside the sweet spot ($1.32–$4.70) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · £73K/yr market · 264K searches/yr. Prices mostly outside the sweet spot ($1.32–$4.70) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Ruler 30cm Folding — £73K/yr Amazon UK Niche (2026) - Flapen"
---
# **ruler 30cm folding**
**Worth a look**
Shows low returns (0.2%), but prices mostly outside the sweet spot ($1.32–$4.70) keeps it on the watch list.
Market size 18Growth 33Conversion 82Competition 58Returns 99Price range 0Avg price 9Brand share 63Review moat 73Quality gap 86
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Great****8.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****562.15**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+6.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£73K**
£73K/yr · 264K searches
**Avg price**
**Bad****£3.19**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£1.32–£4.70**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, ruler 30cm folding is a £73K/yr Amazon United Kingdom market (264K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 53/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ruler 30cm folding market data**
- **Units sold / yr**
- **40K–50K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **£128K–£160K**
- units × avg price
- **Conversion rate**
- **8.6%**
- **Avg BSR**
- **#92**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **56%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **173 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▲rising
**Sellers**
**70**
**Top-5 brand share**
**67%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 91%
**Open market**
**28%**
- Helix36% - Guagua13% - Liquidraw8% - Uskerb6% - Udewo5% - WchoeSS4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +6.8% search growth over the last 90 days.
35K25KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 5.8×
[**Open Trend **](https://flapen.com/research/uk/stationery-office-supplies/ruler-30cm-folding/trend)
## **Top ruler 30cm folding search terms**
- **folding ruler**69K/yr-4.7%7.9% conv. - **foldable ruler**57K/yr+8.1%8.3% conv. - **ruler 30cm folding**49K/yr+10.9%12.2% conv. - **folding ruler 30cm**23K/yr+6.0%12.2% conv. - **ruler foldable**13K/yr-6.5%6.8% conv. - **30cm ruler foldable**13K/yr+73.9%12.2% conv. - **foldable ruler 30cm**15K/yr+9.0%10.2% conv. - **ruler folding**5K/yr+4.6%9.4% conv. - **30cm foldable ruler**3K/yr+50.7%11.6% conv. - **foldable 30cm ruler**3K/yr+64.0%11.4% conv. [**All search terms **](https://flapen.com/research/uk/stationery-office-supplies/ruler-30cm-folding/search-terms)
## **Top ruler 30cm folding 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%10%£7K20%£15K30%£22K40%£29K1101001K10K 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**Helix 30cm Folding Ruler - 30cm/300mm Graduations Ideal for School Home or Office**Helix**£2.98**4.4★3,626 rev](https://www.amazon.co.uk/dp/B000NK1ULU) [2**2Pack Folding Ruler Transparent 30cm 300mm Folding Ruler Clear (2)**Guagua**£3.58**4.0★171 rev](https://www.amazon.co.uk/dp/B0BDRJLKFM) [3**Helix Oxford 30cm Folding Ruler Oxford Blue**Helix**£1.46**4.3★8,504 rev](https://www.amazon.co.uk/dp/B00880VORW) [4**Liquidraw 30cm Folding Ruler Foldable Ruler School Stationery (Blue)**Liquidraw**£2.55**4.2★793 rev](https://www.amazon.co.uk/dp/B08YWLX2HV) [5**Helix J05011 Oxford Folding Rule (Pack of 2)**Helix**£4.70**4.5★223 rev](https://www.amazon.co.uk/dp/B06ZYT47G6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**1Pack Clear Folding Ruler(30cm / 12 Inch) Shatter-Resistant Portable for School Office & Craft**BTOPB**£2.56**0 rev2mo ago](https://www.amazon.co.uk/dp/B0H1S39H5X) [**Maped 2-in-1 Foldable Ruler - 15/30cm Ruler - Decorated Plastic - Ergonomic and Compact - School Supplies**Maped**£1.32**13 rev5mo ago](https://www.amazon.co.uk/dp/B0GL2QSRDV) [**VELSIN 2 Pcs Ruler - 15 cm Transparent Straight Folding Ruler 30cm Foldable for school or office daily DIY Student Convenient Storage**VELSIN**£3.38**3 rev9mo ago](https://www.amazon.co.uk/dp/B0FYWTMRDH) [**2PCS Random Color Folding Ruler 30cm Foldable Rulers 15cm Transparent Straight Rulers Shatterproof Plastic Geometric Ruler(30cm Folding-2Pack)**HiChange**£3.48**21 rev10mo ago](https://www.amazon.co.uk/dp/B0FS74X1CC) [**Foldable Ruler 30cm - 4 Pack Metric Measurements Portable and Durable Bright Colors Ideal for School Office**JOYVOX**£2.76**31 rev11mo ago](https://www.amazon.co.uk/dp/B0D4QRQH29)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**1Pack Clear Folding Ruler(30cm / 12 Inch) Shatter-Resistant Portable for School Office & Craft**BTOPB**£2.56**0.0★**▲ 409%**](https://www.amazon.co.uk/dp/B0H1S39H5X) [**Maped 2-in-1 Foldable Ruler - 15/30cm Ruler - Decorated Plastic - Ergonomic and Compact - School Supplies**Maped**£1.32**4.9★**▲ 389%**](https://www.amazon.co.uk/dp/B0GL2QSRDV) [**Helix J05011 Oxford Folding Rule (Pack of 2)**Helix**£4.70**4.5★**▲ 291%**](https://www.amazon.co.uk/dp/B06ZYT47G6) [**VELSIN 2 Pcs Ruler - 15 cm Transparent Straight Folding Ruler 30cm Foldable for school or office daily DIY Student Convenient Storage**VELSIN**£3.38**2.6★**▲ 288%**](https://www.amazon.co.uk/dp/B0FYWTMRDH) [**2 Pack 30cm Foldable Transparent Ruler Measuring Tool for School & Office**HRLORK**£3.55**4.7★**▲ 160%**](https://www.amazon.co.uk/dp/B0FDGLNYSV)
**~~View all trending →~~**
## **What buyers say about ruler 30cm folding**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“Very well made”*
**Advertised Vs Actual Product**16%
*“Did the job”*
**Strength**11%
*“Its so sturdy”*
**Value For Money**9%
*“great value”*
**Weight Light**5%
*“The ruler itself is very lightweight”*
**Locking Mechanism**4%
*“The folding mechanism is great”*
**Ease Of Use**4%
*“It's easy to use”*
**Size-Overall**3%
*“Great size ruler to fit in my daughters pencil case for secondary school”*
**Measurement/Reading Accuracy**3%
*“the clear markings make it easy to measure accurately”*
**Color**2%
*“Lovely pastel colours”*
### **What buyers complain about **
**Quality-Overall**41%
*“Quality is low”*
**Strength**19%
*“so flimsy it broke within days”*
**Noise Level**11%
*“as the turning wheel is quite noisy”*
**Durability**7%
*“so flimsy it broke within days”*
**Color**6%
*“The only thing I would say is the colour match is a bit off”*
**Ease Of Use**6%
*“as a tool they're less practically useful”*
### **Top return reasons **
**Defective Material/Parts**28%
**Size-Overall**12%
**Strength**12%
**Quality-Overall**8%
**Add-Ons/Attachments**7%
**Functionality-Overall**6%
**Mechanism Issues**6%
**Advertised Vs Actual Product**3%
**Connectivity-Overall**2%
**Thin**2%
## **Common questions**
- **Is ruler 30cm folding profitable to sell on Amazon United Kingdom?**
- The niche generates £73K/yr across 27 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is +6.8%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the ruler 30cm folding niche?**
- 19 brands and 70 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in ruler 30cm folding?**
- Top complaints mined from reviews: Quality-Overall, Strength, Noise Level. The return rate is 0.2%.
- **When does demand for ruler 30cm folding peak?**
- Demand peaks in Aug–Sep; the busiest month runs 5.8× the quietest.
- **What does it cost to enter the ruler 30cm folding niche?**
- Listings span £1.32–£4.70; the average listing price is £3.19 (sweet spot $15–$100). The average incumbent carries 562 reviews — the moat a new listing must climb.
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