---
title: "4 Foot Extension Cord — $228K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/4-foot-extension-cord"
last_updated: "2026-08-07T18:33:12.763Z"
locale: en
meta:
description: "Niche score 52/100 · $228K/yr market · 193K searches/yr · $9.86 avg price. Strong incumbent ratings (4.8★) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $228K/yr market · 193K searches/yr · $9.86 avg price. Strong incumbent ratings (4.8★) keeps it on the watch list. Data updated Jul 2026."
"og:title": "4 Foot Extension Cord — $228K/yr Amazon US Niche (2026) - Flapen"
---
# **4 foot extension cord**
**Worth a look**
Shows searches that convert (11.9% search→purchase), but strong incumbent ratings (4.8★) keeps it on the watch list.
Market size 43Growth 46Conversion 95Competition 62Returns 80Price range 14Avg price 32Brand share 68Review moat 23Quality gap 14
**Conversion**
**Great****11.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.7%**
return rate — above 5% kills the launch gate
**Brand share**
**Good****64%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+16.5%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$228K**
$228K/yr · 193K searches
**Avg price**
**Okay****$9.86**
avg listing price — sweet spot $15–$100
**Review moat**
**Bad****7,936.53**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
**Price range**
**Bad****$4.45–$16.75**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, 4 foot extension cord is a $228K/yr Amazon United States market (193K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 52/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **4 foot extension cord market data**
- **Units sold / yr**
- **25K–30K**
- avg 750–1,000/product
- **Revenue / yr**
- **$247K–$296K**
- units × avg price
- **Conversion rate**
- **11.9%**
- **Avg BSR**
- **#287**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **4.1%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **194 days**
## **Competition & brand share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▲rising
**Sellers**
**42**
**Top-5 brand share**
**64%**
Top 20: 100%
**Top-5 click share**
**48%**
Top 20: 91%
**Open market**
**28%**
- huanchain18% - Skrizcable17% - Amazon Basics10% - Maximm9% - Vockjour9% - Seeklyze8%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +16.5% search growth over the last 90 days.
8K6KHoliday '24Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/4-foot-extension-cord/trend)
## **Top 4 foot extension cord search terms**
- **4ft extension cord**34K/yr+9.2%8.4% conv. - **4 foot extension cord**29K/yr+7.8%8.3% conv. - **4 ft extension cord**30K/yr+11.4%10.2% conv. - **short extension cord 4 foot**20K/yr+47.1%9.3% conv. - **4 extension cord**16K/yr+6.4%11.1% conv. - **extension cord 4ft**14K/yr-8.4%8.7% conv. - **4ft outdoor extension cord**7K/yr+107.2%6.2% conv. - **4ft black extension cord**5K/yr+65.4%4.3% conv. - **4 foot extension cord 3 prong**5K/yr+1.6%14.4% conv. - **4 foot outdoor extension cord**4K/yr+142.5%15.9% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/4-foot-extension-cord/search-terms)
## **Top 4 foot extension cord 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%$9K8%$18K12%$27K16%$36K101001K10K100K 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**16/3 Short Extension Cord 4 FT Black Extension Cord Flexible & Durable Indoor 3 Prong Power Cable Suitable for Home and Office 13 Amp 1625 Watt 125VAC 16AWG ETL Listed**Skrizcable**$7.18**4.8★1,020 rev](https://www.amazon.com/dp/B0FFY81D89) [2**HUANCHAIN 4 FT 16 Gauge Black Indoor Outdoor Extension Cord Waterproof Flexible Cold Weather 3 Prong Electric Cord Outside 13A 1625W 125V 16AWG SJTW ETL Listed**huanchain**$7.97**4.8★221 rev](https://www.amazon.com/dp/B0CYSLYL99) [3**16/3 Black Indoor Outdoor Extension Cord 4 Ft Waterproof Extension Cord with 3 Prong Grounded Plug 13A 1625W 16AWG SJTW Flexible Weatherproof Power Cable**Vockjour**$8.35**4.8★4,399 rev](https://www.amazon.com/dp/B0FR966M2P) [4**Amazon Basics Extension Cord 3 Prong Outlet Extender Indoor Power Cord 13 Amps 125V 6 Ft Black**Amazon Basics**$6.66**4.8★61,533 rev](https://www.amazon.com/dp/B075BCD1LP) [5**Cruise Essentials - Flat Plug Power Strip Addtam 5 ft Ultra Flat Extension Cord with 6 Outlets Extender No Surge Protector for Cruise Ship Travel Dorm Home Office ETL Listed**Addtam**$8.62**4.8★7,839 rev](https://www.amazon.com/dp/B0BWY8FBFP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**16/3 Short Extension Cord 4 FT White Extension Cord Flexible & Durable Indoor 3 Prong Power Cable Suitable for Home and Office 13 Amp 1625 Watt 125VAC 16AWG ETL Listed**Skrizcable**$8.96**1,020 rev7mo ago](https://www.amazon.com/dp/B0G7YPR72Q) [**16/3 Black Indoor Outdoor Extension Cord 4 Ft Waterproof Extension Cord with 3 Prong Grounded Plug 13A 1625W 16AWG SJTW Flexible Weatherproof Power Cable**Vockjour**$8.35**4,399 rev10mo ago](https://www.amazon.com/dp/B0FR966M2P) [**16/3 Short Extension Cord 4 FT Black Extension Cord Flexible & Durable Indoor 3 Prong Power Cable Suitable for Home and Office 13 Amp 1625 Watt 125VAC 16AWG ETL Listed**Skrizcable**$7.18**1,020 rev1y ago](https://www.amazon.com/dp/B0FFY81D89) [**16/3 Black Extension Cord 6 FT Indoor Short Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Small Resistant Cable Flexible 13A 125V 1625W ETL Listed**Seeklyze**$6.23**5,386 rev1y ago](https://www.amazon.com/dp/B0F3D7VT7N) [**16/3 3FT 13A 125V 1625W Black Indoor Extension Cord Short Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Small Resistant Cable Flexible ETL Listed**Seeklyze**$5.53**5,386 rev1y ago](https://www.amazon.com/dp/B0F3CYKYFD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**16/3 Short Extension Cord 4 FT White Extension Cord Flexible & Durable Indoor 3 Prong Power Cable Suitable for Home and Office 13 Amp 1625 Watt 125VAC 16AWG ETL Listed**Skrizcable**$8.96**4.8★**▲ 271%**](https://www.amazon.com/dp/B0G7YPR72Q) [**16/3 Black Extension Cord 6 FT Indoor Short Extension Cord for Laptops Coffee Makers Office Home Appliances 3 Prong Small Resistant Cable Flexible 13A 125V 1625W ETL Listed**Seeklyze**$6.23**4.8★**▲ 137%**](https://www.amazon.com/dp/B0F3D7VT7N) [**16/3 Short Extension Cord 4 FT Black Extension Cord Flexible & Durable Indoor 3 Prong Power Cable Suitable for Home and Office 13 Amp 1625 Watt 125VAC 16AWG ETL Listed**Skrizcable**$7.18**4.8★**▲ 126%**](https://www.amazon.com/dp/B0FFY81D89) [**Amazon Basics Extension Cord 3 Prong Outlet Extender Indoor Power Cord 13 Amps 125V 6 Ft Black**Amazon Basics**$6.66**4.8★**▲ 80%**](https://www.amazon.com/dp/B075BCD1LP) [**16/3 Black Indoor Outdoor Extension Cord 4 Ft Waterproof Extension Cord with 3 Prong Grounded Plug 13A 1625W 16AWG SJTW Flexible Weatherproof Power Cable**Vockjour**$8.35**4.8★**▲ 73%**](https://www.amazon.com/dp/B0FR966M2P)
**~~View all trending →~~**
## **What buyers say about 4 foot extension cord**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“The build quality is outstanding”*
**Advertised Vs Actual Product**15%
*“As advertised”*
**Value For Money**10%
*“Great value”*
**Socket/Port/Plug**8%
*“smart plugs are so easy”*
**Size-Overall**7%
*“Fits perfectly”*
**Charging**5%
*“The actual charger is great”*
**Add-Ons/Attachments**4%
*“Cute case and attachments”*
**Ease Of Use**4%
*“Easy to use”*
**Strength**4%
*“Terrific power strip”*
**Durability**3%
*“It's durable”*
### **What buyers complain about **
**Durability**13%
*“It broke after one use”*
**Socket/Port/Plug**9%
*“Cant fully fit plugs”*
**Size-Overall**9%
*“Doesn't fit”*
**Quality-Overall**8%
*“Bad quality”*
**Add-Ons/Attachments**8%
*“Short extension”*
**Functionality-Overall**8%
*“Didnt work”*
**Charging**4%
*“1st purchase, the usb and c charger did not work”*
**Value For Money**3%
*“Cheap price”*
**Noise Level**3%
*“It has a constant hum all the time”*
**Weight Heavy**3%
*“it's a bit bulky”*
### **Top return reasons **
**Size-Overall**28%
**Add-Ons/Attachments**10%
**Socket/Port/Plug**10%
**Advertised Vs Actual Product**9%
**Value For Money**8%
**Functionality-Overall**7%
**Compatibility-Overall**6%
**Defective Material/Parts**2%
**Length**2%
**Color**2%
## **Common questions**
- **Is 4 foot extension cord profitable to sell on Amazon United States?**
- The niche generates $228K/yr across 30 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +16.5%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the 4 foot extension cord niche?**
- 17 brands and 42 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 64% of demand.
- **What do buyers complain about in 4 foot extension cord?**
- Top complaints mined from reviews: Durability, Socket/Port/Plug, Size-Overall. The return rate is 1.7%.
- **When does demand for 4 foot extension cord peak?**
- Demand peaks in Nov–Dec; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the 4 foot extension cord niche?**
- Listings span $4.45–$16.75; the average listing price is $9.86 (sweet spot $15–$100). The average incumbent carries 7,937 reviews — the moat a new listing must climb.
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