---
title: "Gym Lock — £85K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/gym-lock"
last_updated: "2026-07-31T15:57:14.020Z"
locale: en
meta:
description: "Niche score 52/100 · £85K/yr market · 51K searches/yr. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · £85K/yr market · 51K searches/yr. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Gym Lock — £85K/yr Amazon UK Niche (2026) - Flapen"
---
# **gym lock**
**Worth a look**
Shows a sweet-spot price point ($19.66 avg), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 21Growth 25Conversion 81Competition 65Returns 81Price range 81Avg price 87Brand share 0Review moat 66Quality gap 79
**Avg price**
**Great****£19.66**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.4%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.7%**
return rate — above 5% kills the launch gate
**Price range**
**Great****£8.09–£48.88**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****864.64**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-0.6%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£85K**
£85K/yr · 51K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, gym lock is a £85K/yr Amazon United Kingdom market (51K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 52/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **gym lock market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **£118K–£157K**
- units × avg price
- **Conversion rate**
- **8.4%**
- **Avg BSR**
- **#66**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **48%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**5 **▼falling
**Sellers**
**68**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**46%**
Top 20: 86%
**Open market**
**0%**
- Squire71% - Diyife14% - Master Lock9% - NovLock4% - Henry Squire1% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -0.6% search growth over the last 90 days.
5K4K seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 2.9×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/gym-lock/trend)
## **Top gym lock search terms**
- **squire padlock**17K/yr-4.9%4.0% conv. - **heavy duty combination padlock**12K/yr+20.0%6.7% conv. - **squire combination padlock**15K/yr-15.6%10.3% conv. - **heavy duty padlock combination**4K/yr+34.2%9.3% conv. - **heavy duty combination padlock outdoor weatherproof**3K/yr-21.9%7.7% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/gym-lock/search-terms)
## **Top gym lock 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%4%£3K8%£7K12%£10K16%£14K1101001K10K 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**Squire CP40 Combination Padlock 40mm Black**Squire**£10.63**3.9★195 rev](https://www.amazon.co.uk/dp/B0BG8VSS54) [2**Squire Heavy Duty Padlock (CP50BLACK) - Toughest Steel Shackle - 4 Wheel 50mm Wide Combination Padlock (Black) - Alloy Steel for Corrosion Resistance - Weatherproof Lock for Home School & Garage**Squire**£16.76**4.2★189 rev](https://www.amazon.co.uk/dp/B0BG8TSS89) [3![Diyife Large Heavy Duty Combination Padlock Outdoor [Anti-Cutting] [Waterproof] 8mm Shackle 54mm 4-Digit Padlocks with Code High Security Padlock for Gate Shed Fence School Gym Garage](https://m.media-amazon.com/images/I/41Q5LNgQokL.jpg)**Diyife Large Heavy Duty Combination Padlock Outdoor \[Anti-Cutting\] \[Waterproof\] 8mm Shackle 54mm 4-Digit Padlocks with Code High Security Padlock for Gate Shed Fence School Gym Garage**Diyife**£11.75**4.8★300 rev](https://www.amazon.co.uk/dp/B0D59SKTDF) [4**Squire Heavy Duty Padlock (CBW85) - 5 Wheel Combination - Alloy Steel for Corrosion Resistance - Ideal for Gates Garages and Large Sheds (Blue 85 mm)**Squire**£37.52**4.4★246 rev](https://www.amazon.co.uk/dp/B00BLK5HGK) [5**MASTER LOCK Heavy Duty Combination Padlock Security Level 8/10 Combination Outdoor Stainless Steel Weatherproof**Master Lock**£11.02**4.0★4,713 rev](https://www.amazon.co.uk/dp/B00HUWZRS6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Squire Stronglock Plus Laminated Padlock 50mm Closed Shackle Heavy-Duty Security Lock with Hardened Steel Body Anti-Theft Design Ideal for Sheds Gates Lockers & High-Risk Areas**Squire**£25.09**1 rev9mo ago](https://www.amazon.co.uk/dp/B0FTFN7FFP) [**Squire Combination Padlock CP40/2.5 40mm Long Shackle Combination Padlock (Black) Re-Codable 4-Digit Push Button Lock Ideal for Gates & Large Lockers**Squire**£13.50**18 rev10mo ago](https://www.amazon.co.uk/dp/B0FPD6JKR2) [**Squire CP60 Combination Padlock 60mm Black 5-Wheel Lock**Squire**£22.10**32 rev10mo ago](https://www.amazon.co.uk/dp/B0FPD16X37) [**NOVLOCK Heavy Duty Combination Padlock Outdoor Weatherproof Cut-Resistant 0.31 (8mm) Shackle for Gates Fences Sheds Storage Units Lockers Cabinets 1-Pack Black**NovLock**£10.42**726 rev1y ago](https://www.amazon.co.uk/dp/B0DSV9C75V) [![Diyife Large Heavy Duty Combination Padlock Outdoor [Anti-Cutting] [Waterproof] 8mm Shackle 54mm 4-Digit Padlocks with Code High Security Padlock for Gate Shed Fence School Gym Garage](https://m.media-amazon.com/images/I/41Q5LNgQokL.jpg)**Diyife Large Heavy Duty Combination Padlock Outdoor \[Anti-Cutting\] \[Waterproof\] 8mm Shackle 54mm 4-Digit Padlocks with Code High Security Padlock for Gate Shed Fence School Gym Garage**Diyife**£11.75**300 rev2y ago](https://www.amazon.co.uk/dp/B0D59SKTDF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Henry Squire Stronghold 6 Pin S Cylinder Open Shackle Steel Padlock 50 mm (Length)**Squire**£36.06**4.4★**▲ 231%**](https://www.amazon.co.uk/dp/B0001P0B2Q) [**Squire Stronglock Plus Laminated Padlock 50mm Closed Shackle Heavy-Duty Security Lock with Hardened Steel Body Anti-Theft Design Ideal for Sheds Gates Lockers & High-Risk Areas**Squire**£25.09**1.0★**▲ 151%**](https://www.amazon.co.uk/dp/B0FTFN7FFP) [![Diyife Large Heavy Duty Combination Padlock Outdoor [Anti-Cutting] [Waterproof] 8mm Shackle 54mm 4-Digit Padlocks with Code High Security Padlock for Gate Shed Fence School Gym Garage](https://m.media-amazon.com/images/I/41Q5LNgQokL.jpg)**Diyife Large Heavy Duty Combination Padlock Outdoor \[Anti-Cutting\] \[Waterproof\] 8mm Shackle 54mm 4-Digit Padlocks with Code High Security Padlock for Gate Shed Fence School Gym Garage**Diyife**£11.75**4.8★**▲ 64%**](https://www.amazon.co.uk/dp/B0D59SKTDF) [**Squire Container Padlock - WS75 - Hardened Steel Block Lock - CEN 4 Rated - High Security - 4 x Keys Supplied Free of charge**Henry Squire**£48.88**4.6★**▲ 32%**](https://www.amazon.co.uk/dp/B091596ZDF) [**MASTER LOCK Heavy Duty Combination Padlock Security Level 8/10 Combination Outdoor Stainless Steel Weatherproof**Master Lock**£11.02**4.0★**▲ 30%**](https://www.amazon.co.uk/dp/B00HUWZRS6)
**~~View all trending →~~**
## **What buyers say about gym lock**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Locking Mechanism**29%
*“The combi lock works well”*
**Quality-Overall**16%
*“good quality item, arrived quickly, easy to use and looks substantial”*
**Strength**13%
*“Heavy duty, easy to set up”*
**Value For Money**8%
*“Best deal”*
**Ease Of Use**6%
*“Easy to use”*
**Assembly/Installation**5%
*“easy to set code”*
**Security**3%
*“Secure”*
**Advertised Vs Actual Product**3%
*“Does the job”*
**Durability**2%
*“perfect and durable”*
**Size-Overall**1%
*“Fits well”*
### **What buyers complain about **
**Durability**21%
*“Broke after a few days”*
**Locking Mechanism**15%
*“not a good lock”*
**Quality-Overall**14%
*“Poor quality manufacturer has cheapened the product”*
**Size-Overall**6%
*“The small lock”*
**Ease Of Use**5%
*“Awful to use”*
**Instructions/User Manual/Troubleshooting**3%
*“The instructions on the packaging are poor to say the least”*
**Rusts/Corrodes**3%
*“Haven't found much if any rusting on it”*
**Value For Money**3%
*“was a waste of money”*
**Jamming/Clogging**2%
*“The number dial jammed after just one use”*
**Touch/Button Controls**2%
*“The button on the bottom has cracked”*
### **Top return reasons **
**Size-Overall**46%
**Locking Mechanism**19%
**Functionality-Overall**8%
**Defective Material/Parts**3%
**Mechanism Issues**3%
**Ease Of Use**3%
**Quality-Overall**2%
**Touch/Button Controls**2%
**Instructions/User Manual/Troubleshooting**2%
**Jamming/Clogging**1%
## **Common questions**
- **Is gym lock profitable to sell on Amazon United Kingdom?**
- The niche generates £85K/yr across 33 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -0.6%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the gym lock niche?**
- 5 brands and 68 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in gym lock?**
- Top complaints mined from reviews: Durability, Locking Mechanism, Quality-Overall. The return rate is 1.7%.
- **When does demand for gym lock peak?**
- Demand peaks in Aug–Sep; the busiest month runs 2.9× the quietest.
- **What does it cost to enter the gym lock niche?**
- Listings span £8.09–£48.88; the average listing price is £19.66 (sweet spot $15–$100). The average incumbent carries 865 reviews — the moat a new listing must climb.
## **Related niches in DIY & Tools**
- 68 [**cardboard cutter**](https://flapen.com/research/uk/diy-tools/cardboard-cutter)£343K/yr+30.6%**Worth a look**- 68 [**door canopy**](https://flapen.com/research/uk/diy-tools/door-canopy)£202K/yr+187.7%**Worth a look**- 68 [**fence post repair**](https://flapen.com/research/uk/diy-tools/fence-post-repair)£359K/yr-8.2%**Worth a look**- 68 [**cat window guard**](https://flapen.com/research/uk/diy-tools/cat-window-guard)£98K/yr+413.1%**Worth a look**- 68 [**sun shade**](https://flapen.com/research/uk/diy-tools/sun-shade)£202K/yr+187.7%**Worth a look**- 69 [**brass hose connector**](https://flapen.com/research/uk/diy-tools/brass-hose-connector)£66K/yr+122.8%**Worth a look**[**All DIY & Tools niches **](https://flapen.com/research/uk/diy-tools)