4040 Aluminum Extrusion
FailThe products selling today already average 4.7★, so 4040 Aluminum Extrusion is a Fail.
- Flapen Score
- 44 / 100Ranks 201 of 262 Industrial & Scientific niches · −8 vs the category median of 5244
- Market size
- $107K/yr77K searches / yr
- 90-day growth
- +1.3%search demand this quarter
- Competition
- 42%top-5 click share · 14 brands · 21 sellers
Flapen Score
4040 Aluminum Extrusion against its category
The dotted line is the Industrial & Scientific average. Past it, 4040 Aluminum Extrusion is stronger. Inside it, weaker.
Market
The 4040 Aluminum Extrusion market on Amazon at a glance
Shoppers on Amazon United States searched for 4040 Aluminum Extrusion 77K times last year and spent an estimated $107K. The top 5 brands take 84% of clicks. Flapen scores it 44 out of 100, a Fail.
01 · Demand
An estimated 2.0% of those searches ended in a purchase.
Shoppers searched for this 77K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.0% of those searches ended in a purchase. Searches in the last 90 days moved +1.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $107K a year.
- Searches, last 12 months
- 77K
- Growth, 90 days vs prior 90
- +1.3%
- Conversion, latest week
- 2.0%
- Market size, estimated
- $107Ka year
- Peak month
- January1.5× the quietest month
- Top search term
- 4040 aluminum extrusion58K searches a year
02 · Price
A sale here is worth $69.49.
Listings sell for $69.49 on average, from $18.63 to $192.77. Amazon reports units sold in ranges. This niche sold 1K to 2K a year. The average listing sells 0 to 100 of them. At $69.49 that is $0 to $7K a year per listing.
- Average price
- $69.49inside the $15 to $100 sweet spot
- Price range
- $18.63–$192.77
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 1K–2K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$7K
- Returns
- 2.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
92% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 8.9% of listings are out of stock. The average listing ranks #297 within Additive Manufacturing Products. It carries 107 reviews at 4.68 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 92%
- Prime listings
- 95%
- Out of stock, average day
- 8.9%
- Average rank
- #297in Additive Manufacturing Products
- Average rating
- 4.68 starsAmazon United States average 4.42 stars
- Average reviews
- 107per listing
- Listings tracked
- 37
04 · Newcomers
1 of last year's 6 launches cleared the first-year sales bar.
6 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 41 months on average, so the names here are settling in.
- Launched, last 12 months
- 6
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 41 months
Products
Top 4040 Aluminum Extrusion products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Aug 6, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Seekliny 4Pack 4040 T Slot Aluminum Extrusion 400mm Black Extruded Aluminum Profile 40x40 T-Slotted Framing European Standard Anodized Linear Rail for 3D Printer Accessories Parts
- Price
- $38.05
- Rating
- 4.8/5
- Reviews
- 67
- Age
- 2y ago

4040 T-Slot Extruded Aluminum Profile 400mm Black - Versatile and Durable Aluminum Extrusion European Standard Aluminum Extrusion for All Your Construction and Design Needs4 Pack
- Price
- $39.10
- Rating
- 4.8/5
- Reviews
- 67
- Age
- 1y ago

Seekliny 4Pack 4040 T Slot Aluminum Extrusion 500mm Black Extruded Aluminum Profile 40x40 T-Slotted Framing European Standard Anodized Linear Rail for 3D Printer Accessories Parts
- Price
- $53.02
- Rating
- 4.8/5
- Reviews
- 67
- Age
- 2y ago

IXGNIJ 4PCS T Slot 4040 Aluminum Extrusion Profile 15.74 European Standard Linear Rail for 3D Printer Parts and CNC DIY 400mm Black(15.74inch)
- Price
- $37.39
- Rating
- 4.7/5
- Reviews
- 149
- Age
- 2y ago

4PCS T Slot 4040 Aluminum Extrusion Profile 78.7 European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY 2000mm Silver
- Price
- $188.78
- Rating
- 4.7/5
- Reviews
- 149
- Age
- 4y ago
Trending
estimated 90-day click momentum
4 Pack 48 in 4040 T Slot Aluminum Extrusion Profile
- Price
- $77.09
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1mo ago

4PCS T Slot 4040 Aluminum Extrusion Profile 78.7 European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY 2000mm Silver
- Price
- $188.78
- Rating
- 4.7/5
- Reviews
- 149
- Age
- 4y ago

IXGNIJ 4PCS T Slot 4040 Aluminum Extrusion Profile 31.5 European Standard Linear Rail for 3D Printer Parts and CNC DIY 800mm Black
- Price
- $67.33
- Rating
- 4.7/5
- Reviews
- 149
- Age
- 1y ago

4040 T-Slot Extruded Aluminum Profile 2000mm Black - Versatile and Durable Aluminum Extrusion European Standard Aluminum Extrusion for All Your Construction and Design Needs4 Pack
- Price
- $157.78
- Rating
- 4.8/5
- Reviews
- 67
- Age
- 1y ago

4PCS V Slot 4040 Aluminum Extrusion Profile 19.7 European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY 500mm Black(19.7inch)
- Price
- $55.32
- Rating
- 4.6/5
- Reviews
- 56
- Age
- 4y ago
Newest
by launch date
4 Pack 48 in 4040 T Slot Aluminum Extrusion Profile
- Price
- $77.09
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1mo ago

4 PCS 48 4040 T Slot Aluminum Extrusion Profile 1220mm Durable Extruded Aluminum Profile Anodized European Standard Linear Rail for 3D Printers DIY Projects Automation Equipment Black
- Price
- $76.27
- Rating
- 4.2/5
- Reviews
- 3
- Age
- 4mo ago

10 Pack 39.4 Inch 4040 T Slot Aluminum Extrusion Profiles
- Price
- $138.76
- Rating
- 4.9/5
- Reviews
- 12
- Age
- 5mo ago

IXGNIJ 4PCS T Slot 4040 Aluminum Extrusion Profile 31.5 European Standard Linear Rail for 3D Printer Parts and CNC DIY 800mm Black
- Price
- $67.33
- Rating
- 4.7/5
- Reviews
- 149
- Age
- 1y ago

VEVOR 4PCS 39.4 in (1000mm) T Slot 4040 Aluminum Extrusion Profile European Standard Anodized Linear Rail High-Strength Extruded Aluminum Rail for 3D Printer CNC Machine DIY Laser Engraving Black
- Price
- $50.69
- Rating
- 4.4/5
- Reviews
- 262
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 42% of clicks. Leaders hold, but buyers still shop past them.
Brands
14 falling
Sellers
21
Est. top-5 brand share
84%
Top 20: 100%
Est. top-5 click share
42%
Top 20: 82%
Open market
13%
- IXGNIJ29%
- SERABETTO23%
- SeekLiny22%
- VEVOR5%
- Noliven5%
- Generic3%
- Open — no brand owns it (8 brands, 13%)
Demand
4040 Aluminum Extrusion search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top 4040 Aluminum Extrusion search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 4040 aluminum extrusion58K/yr
- 4040 extrusion6K/yr
- 40406K/yr
- aluminum extrusion 40405K/yr
- 40x40 aluminum extrusion3K/yr
Reviews and returns
What reviews say buyers love and hate about 4040 Aluminum Extrusion
We read the reviews and the return reasons for every product selling here.
“I don't think the quality control is there”
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.
18 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 4040 Aluminum Extrusion questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









