8/3 Romex
FailThe products selling today already average 4.7★, so 8/3 Romex is a Fail.
- Flapen Score
- 41 / 100Ranks 7,340 of 9,536 Tools & Home Improvement niches · −7 vs the category median of 4841
- Market size
- $470K/yr103K searches / yr
- 90-day growth
- -5.5%search demand this quarter
- Competition
- 57%top-5 click share · 10 brands · 32 sellers
Flapen Score
8/3 Romex against its category
The dotted line is the Tools & Home Improvement average. Past it, 8/3 Romex is stronger. Inside it, weaker.
Market
The 8/3 Romex market on Amazon at a glance
Shoppers on Amazon United States searched for 8/3 Romex 103K times last year and spent an estimated $470K. The top 5 brands take 85% of clicks. Flapen scores it 41 out of 100, a Fail.
01 · Demand
3.3% of searches ended in a purchase last week.
Shoppers searched for this 103K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 3.3% of those searches ended in a purchase. Searches in the last 90 days moved -5.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $470K a year.
- Searches, last 12 months
- 103K
- Growth, 90 days vs prior 90
- -5.5%
- Conversion, latest week
- 3.3%
- Market size, estimated
- $470Ka year
- Peak month
- October1.3× the quietest month
- Top search term
- 8/3 romex36K searches a year
02 · Price
A sale here is worth $139.67.
Listings sell for $139.67 on average, from $25.50 to $293.18. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 100 to 250 of them. At $139.67 that is $14K to $35K a year per listing.
- Average price
- $139.67above the $15 to $100 sweet spot
- Price range
- $25.50–$293.18
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $14K–$35K
- Returns
- 3.7%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
81% of listings pay for placement with sponsored ads. 88% ship with Prime. On an average day, 6.5% of listings are out of stock. The average listing ranks #386 within Electrical Wire. It carries 129 reviews at 4.73 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 81%
- Prime listings
- 88%
- Out of stock, average day
- 6.5%
- Average rank
- #386in Electrical Wire
- Average rating
- 4.73 starsAmazon United States average 4.42 stars
- Average reviews
- 129per listing
- Listings tracked
- 26
04 · Newcomers
Amazon counts 4 of last year's 6 launches as successful.
6 products launched here in the last 12 months. Amazon counts 4 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 51 months on average, so the names here are settling in.
- Launched, last 12 months
- 6
- Successful launches
- 4Amazon's first-year sales bar
- Average brand age
- 51 months
Products
Top 8/3 Romex products & what they sell for
Every tracked product: its share of the shelf, its reviews, and its price.
Top sellers
by 90-day click share
50ft NM-B 8/3 Wire with Ground 8/3 8 Gauge 3 Conductor Wire 8-3 Copper 8 AWG Non-Metallic Sheathed 8/3 NM-B W/G Cable Stranded Indoor Residential Electrical Wiring for Branch Circuit Switches&Outlets
- Price
- $141.01
- Rating
- 4.8/5
- Reviews
- 88
- Age
- 1y ago

SOUTHWIRE COMPANY LL 63949202 Romex Type Nm-B Wg Non-Metallic Wire 125 ft. 8/3 Black
- Price
- $283.94
- Rating
- 4.5/5
- Reviews
- 65
- Age
- 17y ago

Southwire 75 ft. 8/3 NM-B Stranded Indoor Residential Electrical Wire - Black
- Price
- $191.06
- Rating
- 4.8/5
- Reviews
- 286
- Age
- 12y ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 25FT Black 8 AWG 3 Conductors with Ground Wire
- Price
- $66.07
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 50FT Black 8 AWG 3 Conductors with Ground Wire
- Price
- $138.95
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago
Trending
90-day click momentum
Solid Indoor 8/3 Type NM-B Pure Copper Cable 125FT White 8 AWG 3 Conductors with Ground Wire
- Price
- $293.18
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 50FT Black 8 AWG 3 Conductors with Ground Wire
- Price
- $138.95
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 25FT Black 8 AWG 3 Conductors with Ground Wire
- Price
- $66.07
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 75FT Black 8 AWG 3 Conductors with Ground Wire
- Price
- $205.44
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago

VN Infinite quality 8/3 NM-B Non-Metallic Sheathed Cable Stranded Residential Indoor Wire (50 Ft)
- Price
- $140.92
- Rating
- 4.5/5
- Reviews
- 2
- Age
- 2y ago
Newest
by launch date
15ft NM-B 8/3 Wire with Ground 8/3 8 Gauge 3 Conductor Wire 8-3 Copper 8 AWG Non-Metallic Sheathed 8/3 NM-B W/G Cable Stranded Indoor Residential Electrical Wiring for Branch Circuit Switches&Outlets
- Price
- $52.14
- Rating
- 4.8/5
- Reviews
- 88
- Age
- 6mo ago

35ft NM-B 8/3 Wire with Ground 8/3 8 AWG Copper Wire 8 Gauge 3 Conductor Non-Metallic Sheathed 8/3 NM-B Cable with Ground Stranded Indoor Residential Electrical Wiring for Branch Circuit Switch&Outlet
- Price
- $117.08
- Rating
- 4.8/5
- Reviews
- 88
- Age
- 6mo ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 125FT White 8 AWG 3 Conductors with Ground Wire
- Price
- $293.18
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 25FT Black 8 AWG 3 Conductors with Ground Wire
- Price
- $66.07
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago

Solid Indoor 8/3 Type NM-B Pure Copper Cable 50FT Black 8 AWG 3 Conductors with Ground Wire
- Price
- $138.95
- Rating
- 4.9/5
- Reviews
- 18
- Age
- 8mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take 57% of clicks. Leaders hold, but buyers still shop past them.
Brands
10 falling
Sellers
32
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
57%
Top 20: 94%
Open market
8%
- Southwire26%
- XMK24%
- energeaster22%
- VN Infinite quality7%
- Woods6%
- wirenco6%
- Open — no brand owns it (4 brands, 8%)
Demand
8/3 Romex search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top 8/3 Romex search terms shoppers use
The exact words shoppers type, with yearly volume, growth, and conversion.
- 8/3 romex36K/yr
- 8/3 wire21K/yr
- 8/3 wire with ground16K/yr
- 8-3 wire4K/yr
- 8/3 romex 50 ft4K/yr
- 8-3 wire with ground7K/yr
- 8-3 romex3K/yr
- 8/3 romex 75 ft4K/yr
- 8 3 wire3K/yr
- 8/3 romex 100 ft3K/yr
Reviews and returns
What reviews say buyers love and hate about 8/3 Romex
We read the reviews and the return reasons for every product selling here.
“Deceptive advertising”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
14 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 8/3 Romex questions
Answered from the same tracked data.









