6/3 wire with ground
Skip itPrices mostly outside the sweet spot ($44.06–$390.46) — this niche doesn't clear our bar today.
Review moat
Great224.04avg incumbent reviews — the moat a new listing must climb
Market size
Great$1.1M$1.1M/yr · 286K searches
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Avg price
Good$164.66avg listing price — sweet spot $15–$100
Returns
Okay3.7%return rate — above 5% kills the launch gate
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Growth
Bad-7.0%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Price range
Bad$44.06–$390.46cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 6/3 wire with ground is a $1.1M/yr Amazon United States market (286K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 43/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
6/3 wire with ground market data
- Units sold / yr
- 6K–8K
- avg 250–500/product
- Revenue / yr
- $988K–$1.3M
- units × avg price
- Conversion rate
- 2.4%
- Avg BSR
- #571
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 84%
- Out of stock
- 1.2%
- Avg brand age
- 53 months
- Avg seller age
- 149 days
Competition & brand share
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
32
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
53%
Top 20: 93%
Open market
5%
- XMK35%
- Southwire25%
- energeaster15%
- ARIZONA ELECTRICAL SOLUTIONS9%
- MOOKEERF5%
- wirenco5%
- Open — no brand owns it (2 brands, 5%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top 6/3 wire with ground search terms
- 6/3 romex77K/yr
- 6/3 wire with ground73K/yr
- 6/3 wire37K/yr
- 6-3 romex14K/yr
- 6-3 wire14K/yr
- 6/3 romex 50ft7K/yr
- 6/3 wire with ground 100 ft9K/yr
- 6/3 romex 125 ft7K/yr
- 6-3 wire with ground6K/yr
- 6/3 wire 100 ft4K/yr
Top 6/3 wire with ground 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Southwire 63950002 125ft. 6 Gauge 3 Conductor Nonmetallic Sheathed Type NM-B Cable Black
Southwire$386.414.7★834 rev
NM-B 6/3 Wire with Ground 25ft 6/3 NM-B Wire Copper 6 AWG 3 Conductor with Ground Nonmetallic Sheathed NMB Cable 6-3 Residential Indoor Electrical Wiring for Branch Circuit Switche Outlet Other Load
XMK$107.854.8★257 rev
NM-B 6/3 Wire with Ground 35ft 6 AWG Copper Wire 6 Gauge 3 Conductor Nonmetallic Sheathed 6/3 NM-B Cable with Ground Residential Indoor Electrical Wiring for Branch Circuit Switches Outlets Other Load
XMK$143.924.8★257 rev
Solid Indoor 6/3 Type NM-B Pure Copper Cable 125FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$390.464.5★16 rev
Solid Indoor 6/3 Type NM-B Pure Copper Cable 50FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$206.554.5★16 rev
Newest
by launch date
Solid Indoor 6/3 Type NM-B Pure Copper Cable 15FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$64.5216 rev
Solid Indoor 6/3 Type NM-B Pure Copper Cable 125FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$390.4616 rev
Solid Indoor 6/3 Type NM-B Pure Copper Cable 50FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$206.5516 rev
6/3 Wire with Ground - 5FT NM-B 6 Gauge Non-Metallic Sheathed Cable 100% Pure Copper 6 AWG 3 Conductor Residential Indoor Wire for Outlets Switches Other Loads and Lighting Wiring Projects etc.
MOOKEERF$44.0624 rev
6/3 Wire with Ground - 50FT NM-B 6 Gauge Non-Metallic Sheathed Cable 100% Pure Copper 6 AWG 3 Conductor Residential Indoor Wire for Outlets Switches Other Loads and Lighting Wiring Projects etc.
MOOKEERF$229.2524 rev
Trending
90-day click momentumSolid Indoor 6/3 Type NM-B Pure Copper Cable 50FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$206.554.5★
Solid Indoor 6/3 Type NM-B Pure Copper Cable 15FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$64.524.5★
Solid Indoor 6/3 Type NM-B Pure Copper Cable 125FT Black 6 AWG 3 Conductors with Ground Wire
energeaster$390.464.5★
Cable Cabana 6/3 UF-B Underground Feeder Electrical Cable with Ground
Cable Cabana$52.414.6★
6/3 Wire with Ground - 50FT NM-B 6 Gauge Non-Metallic Sheathed Cable 100% Pure Copper 6 AWG 3 Conductor Residential Indoor Wire for Outlets Switches Other Loads and Lighting Wiring Projects etc.
MOOKEERF$229.254.6★
What buyers say about 6/3 wire with ground
What buyers praise and complain about, mined from review topics.What buyers love
“Great value”
“Excellent Quality”
“As advertised”
“Works great”
“Good solid cable”
“states that it is made in the USA”
“Heavy duty quality”
“Its flexible enough”
“Seems like quality wire inside of a very tough metal protective jacket”
“This was perfect for installing a EV charger inside my garage”
What buyers complain about
“Cable is very stiff as you would expect”
“it is true that working with this wire requires patience as it is not flexible”
“A very expensive item should be delivered properly near the door not close to the sidewalk”
“All pictures show solid wire / I received stranded wire”
“the insulation plastic seemed super cheap on both the outer wire sheathing”
“very heavy”
“6-3 is not the easiest to work with”
Top return reasons
Common questions
- Is 6/3 wire with ground profitable to sell on Amazon United States?
- The niche generates $1.1M/yr across 25 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is -7.0%. Flapen's verdict: Skip it (43/100).
- How competitive is the 6/3 wire with ground niche?
- 8 brands and 32 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in 6/3 wire with ground?
- Top complaints mined from reviews: Stiffness, Flexibility, Value For Money. The return rate is 3.7%.
- When does demand for 6/3 wire with ground peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the 6/3 wire with ground niche?
- Listings span $44.06–$390.46; the average listing price is $164.66 (sweet spot $15–$100). The average incumbent carries 224 reviews — the moat a new listing must climb.