---
title: "Caster Wheels Set of 4 — £35K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/caster-wheels-set-of-4"
last_updated: "2026-07-31T11:33:19.800Z"
locale: en
meta:
description: "Niche score 46/100 · £35K/yr market · 97K searches/yr · £9.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £35K/yr market · 97K searches/yr · £9.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Caster Wheels Set of 4 — £35K/yr Amazon UK Niche (2026) - Flapen"
---
# **caster wheels set of 4**
**Skip it**
A small market ($35K/yr) — this niche doesn't clear our bar today.
Market size 9Growth 21Conversion 49Competition 77Returns 72Price range 46Avg price 25Brand share 73Review moat 48Quality gap 45
**Competition**
**Great****38%**
top-5 click share — an open shelf
**Brand share**
**Good****61%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****4.0%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Okay****1,654.71**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****£4.22–£24.27**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****£9.01**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-8.6%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£35K**
£35K/yr · 97K searches
According to Flapen's Amazon United Kingdom niche tracking, caster wheels set of 4 is a £35K/yr Amazon United Kingdom market (97K searches/yr). The top 5 brands hold 61% of demand. Verdict: Skip it — 46/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **caster wheels set of 4 market data**
- **Units sold / yr**
- **4K–5K**
- avg 0–100/product
- **Revenue / yr**
- **£36K–£45K**
- units × avg price
- **Conversion rate**
- **4.0%**
- **Avg BSR**
- **#40**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **88%**
- **Out of stock**
- **3.9%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **191 days**
## **Competition & brand share**
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.
**Brands**
**27 **▲rising
**Sellers**
**36**
**Top-5 brand share**
**61%**
Top 20: 92%
**Top-5 click share**
**38%**
Top 20: 75%
**Open market**
**36%**
- DSL Daily Supply Ltd.39% - HOLKIE8% - W B D WEIBIDA5% - Emuca4% - H&S4% - GBL3%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -8.6% search growth over the last 90 days.
3K2KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/caster-wheels-set-of-4/trend)
## **Top caster wheels set of 4 search terms**
- **casters for furniture**18K/yr-35.4%2.7% conv. - **small wheels**11K/yr+0.5%2.3% conv. - **castors for furniture**15K/yr-29.2%2.4% conv. - **heavy duty casters set of 4**10K/yr-4.8%5.7% conv. - **furniture wheels set of 4**7K/yr-6.6%3.8% conv. - **trolley wheels replacement**5K/yr+38.1%0.8% conv. - **cart wheels**5K/yr+28.5%0.9% conv. - **heavy duty trolley wheels**5K/yr+12.9%1.1% conv. - **castor wheels with brakes**4K/yr+39.0%4.5% conv. - **roller wheels**5K/yr-7.5%1.3% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/caster-wheels-set-of-4/search-terms)
## **Top caster wheels set of 4 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%£3K20%£7K30%£10K40%£14K101001K10K100K 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**DSL Heavy Duty Braked 50mm Swivel Castor Wheels Trolley Caster Wheels Set of 4 Rubbered Castors for Furniture Upto 200KG + Free Fitting**DSL Daily Supply Ltd.**£7.33**4.6★3,892 rev](https://www.amazon.co.uk/dp/B01MT3DZ73) [2**DSL 4 x Heavy Duty Double Bearing BRAKED 100mm Swivel Castor Wheel Trolley Furniture Caster 700KG Free Fitting**DSL Daily Supply Ltd.**£17.72**4.7★2,344 rev](https://www.amazon.co.uk/dp/B01DO27DE6) [3**DSL 4 x Heavy Duty 75mm Swivel Castor Wheels Trolley Furniture Caster Brake with Free Bolt Fitting**DSL Daily Supply Ltd.**£10.10**4.6★3,926 rev](https://www.amazon.co.uk/dp/B01DTD0AG8) [4**DSL Small Swivel Castor Wheels Trolley 25mm Heavy Duty Caster Wheels Set of 4 Rubbered Wheel for Furniture with 2 Brakes- Black up to 60KG +Free Fitting Castors for Furniture**DSL Daily Supply Ltd.**£6.56**4.4★609 rev](https://www.amazon.co.uk/dp/B08QDLBFKH) [5**W B D WEIBIDA Heavy Duty Castor Wheels with 4 Brakes 1 Rubber Casters with Load Capacity 100 Lbs Easy Rolling Small Swivel Trolley Caster for Furniture Table Baby Bed 4 Pack**W B D WEIBIDA**£7.32**4.6★2,391 rev](https://www.amazon.co.uk/dp/B0BV92B887)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**CoralBloom Castor Wheels 50mm Caster Wheels Set of 4 with Brakes - 360 Rotating Heavy Duty Castors for Trolley/Furniture/Dolly/Bed/Suitcase Max. load 400 lbs**CoralBloom**£9.30**118 rev12mo ago](https://www.amazon.co.uk/dp/B0FJSGGDX1) [**16 Pcs Small Caster Wheels 0.5in Furniture Casters with Screws**Jiujuda9**£5.06**55 rev1y ago](https://www.amazon.co.uk/dp/B0FBLZ127G) [**Flintronic Wheels for Furniture 12PCS Small Castor Wheel Fixed Heavy Duty Castors wheels Low Profile Self-Adhesive Caster-Wheels Trolley-Wheel for Small Appliances Luggage Drawer Carts**flintronic**£4.97**171 rev1y ago](https://www.amazon.co.uk/dp/B0DWHSC2YV) [**NIUXX Furniture Mover with Wheels**NIUXX**£23.80**643 rev1y ago](https://www.amazon.co.uk/dp/B0DQL284QX) [**QNCZ 5 Inch Heavy Duty Swivel Casters Silent Industrial Load 2600lbs Set of 4 Floor-Friendly Steel & Polyurethane Plate Mount**QNCZ**£24.27**2,516 rev2y ago](https://www.amazon.co.uk/dp/B0CQJ7MPR3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**QNCZ 5 Inch Heavy Duty Swivel Casters Silent Industrial Load 2600lbs Set of 4 Floor-Friendly Steel & Polyurethane Plate Mount**QNCZ**£24.27**4.6★**▲ 244%**](https://www.amazon.co.uk/dp/B0CQJ7MPR3) [**HOLKIE 50mm Furniture Castor Wheels without Brake - Total Capacity 250kg - Smooth & Quiet Wheels - Heavy Duty Castors for Furniture (Set of 4)**HOLKIE**£8.27**4.8★**▲ 85%**](https://www.amazon.co.uk/dp/B09X2HG3TB) [**Medipaq Felt Castor Cups for Wooden Floors 4 x Large 60mm Chair Leg Floor Protectors & Floor Protectors for Furniture Legs Dark Wood Grain**Medipaq**£5.25**4.2★**▲ 56%**](https://www.amazon.co.uk/dp/B00APXJUS0) [**Emuca - Pack of 4 black swivel castors for furniture (2 with brake and 2 without brake) 40mm diameter with fixing plate and ball bearings**Emuca**£4.84**4.5★**▲ 56%**](https://www.amazon.co.uk/dp/B01BFA2GAA) [**NIUXX Furniture Mover with Wheels**NIUXX**£23.80**4.0★**▲ 52%**](https://www.amazon.co.uk/dp/B0DQL284QX)
**~~View all trending →~~**
## **What buyers say about caster wheels set of 4**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**27%
*“These wheels are excellent quality”*
**Value For Money**15%
*“Great value”*
**Advertised Vs Actual Product**12%
*“did the job perfectly”*
**Size-Overall**11%
*“Fits perfect”*
**Strength**11%
*“These castors are very sturdy”*
**Ease Of Use**6%
*“Easy to use”*
**Weight Heavy**3%
*“definitely heavy duty”*
**Efficiency**2%
*“Very effective”*
**Assembly/Installation**1%
*“easy to install”*
**Durability**1%
*“Very durable”*
### **What buyers complain about **
**Size-Overall**17%
*“They were a bit big”*
**Quality-Overall**12%
*“False load capability and poor quality”*
**Durability**7%
*“Fall apart straight away”*
**Functionality-Overall**6%
*“Terrible product 6 out of 8 casters failed under a sub 100kg load within 10m of travel”*
**Value For Money**4%
*“Not worth the price I paid”*
**Adhesion/Stickiness**4%
*“rubber base not very well glued on”*
**Strength**4%
*“screws a bit too chunky built”*
**Grip**3%
*“they slip out from under it”*
**Wood Quality**3%
*“They arent wood”*
**Material Quality**2%
*“Cheap and nasty plastic”*
### **Top return reasons **
**Size-Overall**71%
**Compatibility-Overall**5%
**Functionality-Overall**3%
**Advertised Vs Actual Product**3%
**Strength**2%
**Quality-Overall**2%
**Defective Material/Parts**2%
**Material Quality**2%
**Width**1%
**Color**1%
## **Common questions**
- **Is caster wheels set of 4 profitable to sell on Amazon United Kingdom?**
- The niche generates £35K/yr across 41 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -8.6%. Flapen's verdict: Skip it (46/100).
- **How competitive is the caster wheels set of 4 niche?**
- 27 brands and 36 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 61% of demand.
- **What do buyers complain about in caster wheels set of 4?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 2.1%.
- **When does demand for caster wheels set of 4 peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the caster wheels set of 4 niche?**
- Listings span £4.22–£24.27; the average listing price is £9.01 (sweet spot $15–$100). The average incumbent carries 1,655 reviews — the moat a new listing must climb.
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