flat screen spline
Skip itA small market ($25K/yr) — this niche doesn't clear our bar today.
Avg price
Great$18.36avg listing price — sweet spot $15–$100
Conversion
Great7.9%search→purchase rate — share of searches ending in a sale
Price range
Good$9.22–$29.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good899.06avg incumbent reviews — the moat a new listing must climb
Growth
Good+34.2%90-day search growth — must beat 0% to launch
Returns
Good2.9%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Market size
Bad$25K$25K/yr · 17K searches
According to Flapen's Amazon United States niche tracking, flat screen spline is a $25K/yr Amazon United States market (17K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Apr–May–Jun. Verdict: Skip it — 45/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
flat screen spline market data
- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- $23K–$28K
- units × avg price
- Conversion rate
- 7.9%
- Avg BSR
- #383
- Page quality
- 0%
- Prime
- 83%
- Sponsored
- 78%
- Out of stock
- 8.0%
- Avg brand age
- 43 months
- Avg seller age
- 191 days
Competition & brand share
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.Brands
10 falling
Sellers
14
Top-5 brand share
89%
Top 20: 100%
Top-5 click share
66%
Top 20: 100%
Open market
8%
- LEIFIDE33%
- M-D Building Products21%
- FINE PRODUCT SUPPLY17%
- Yaomiao10%
- FLYZZZ8%
- Metro Screenworks3%
- Open — no brand owns it (4 brands, 8%)
Demand & seasonality
Weekly Amazon search volume, last 86 weeks — +34.2% search growth over the last 90 days.Peak months: Apr, May, Jun · busiest ÷ quietest = 2.2×
Top flat screen spline search terms
- flat screen spline7K/yr
- flat spline for screens5K/yr
- flat spline3K/yr
- screen spline flat2K/yr
Top flat screen spline 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 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
M-D Building Products 14255 .3125 in. x 100 ft. Black Window Screen Spline
M-D Building Products$10.294.5★215 rev
LEIFIDE Flat Screen Spline 0.315 Width Vinyl Window Screen Spline with Rolling Tool Black Flat Bottom and Curved Top Edge Repair Kit for Installing Window Patio Door(100 ft)
LEIFIDE$19.694.5★181 rev
Flat Screen Spline 0.290 Width X 100ft Black in Color
FINE PRODUCT SUPPLY$19.734.6★101 rev
Yaomiao 0.29 Width Flat Screen Spline Black Vinyl Screen Spline Flat Bottom and Curved Top Edge Window Screen Spline for Replace Glass Screen on Windows or Patio Screen Doors 0.092 Thick (150ft)
Yaomiao$22.854.4★81 rev
Flat Screen Spline 0.315 Width Vinyl Screen Spline Flat Bottom and Curved Top Edge Fillet for Replacing The Glass Screen on Windows or Patio Screen Doors 0.092 Thickness (100 ft)
LEIFIDE$18.794.5★203 rev
Newest
by launch date
Saint-Gobain ADFORS Spline .125 inches x 100 feet - Durable Window and Door Screen Spline - Black
ADFORS$9.229,859 rev
.290 Flat Vinyl Spline (Black) at 250 feet for Aluminum Screen enclosures Pool enclosures Lanai and Outdoor Aluminum Room framing. (.290 Flat Spline 250 feet)
PPS Professional Screen$20.5639 rev
Flat Screen Spline 0.290 Width X 100ft Black in Color
FINE PRODUCT SUPPLY$19.73101 rev
Yaomiao 0.29 Width Flat Screen Spline Black Vinyl Screen Spline Flat Bottom and Curved Top Edge Window Screen Spline for Replace Glass Screen on Windows or Patio Screen Doors 0.092 Thick (150ft)
Yaomiao$22.8581 rev
Yaomiao 0.29 Width Flat Screen Spline Black Vinyl Screen Spline Flat Bottom and Curved Top Edge Window Screen Spline for Replace Glass Screen on Windows or Patio Screen Doors 0.092 Thick (250ft)
Yaomiao$27.7681 rev
Trending
90-day click momentumYaomiao 0.29 Width Flat Screen Spline Black Vinyl Screen Spline Flat Bottom and Curved Top Edge Window Screen Spline for Replace Glass Screen on Windows or Patio Screen Doors 0.092 Thick (250ft)
Yaomiao$27.764.4★
Flat Screen Spline - .310 Flat Spline for Screens - Roll of 50 Feet Black Vinyl - for Windows Pool Enclosure Lanai Patio Porch & More
Metro Screenworks$19.494.5★
FLYZZZ Screen Spline 0.140 (9/64) 100 ft | Common Size for Standard Windows | Please Confirm Your Size (See Guide in Image #2)
FLYZZZ$9.824.6★
FLYZZZ Screen Spline 0.125 (1/8) 100 ft | for Narrow Grooves ONLY | NOT for All Standard Windows (See Guide in Image #2)
FLYZZZ$9.804.6★
Flat Screen Spline - .315 Flat Spline for Screens - Roll of 50 Feet Black Vinyl - for Windows Pool Enclosure Lanai Patio Porch & More
Metro Screenworks$19.525.0★
What buyers say about flat screen spline
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent kit”
“Easy to use”
“Exactly what we needed”
“Perfect fit”
“Fair price”
“Does the job”
“Easy to install”
“Durable”
“Cane quickly and did the job well”
“This will do the job to replace those areas”
What buyers complain about
“It's narrow, not standard”
“Feels and looks heavy”
“But the installation tool is not very durable”
Top return reasons
Common questions
- Is flat screen spline profitable to sell on Amazon United States?
- The niche generates $25K/yr across 18 tracked products. 90-day search growth is +34.2%. Flapen's verdict: Skip it (45/100).
- How competitive is the flat screen spline niche?
- 10 brands and 14 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 89% of demand.
- What do buyers complain about in flat screen spline?
- Top complaints mined from reviews: Size-Overall, Weight Heavy, Assembly/Installation. The return rate is 2.9%.
- When does demand for flat screen spline peak?
- Demand peaks in Apr–May–Jun; the busiest month runs 2.2× the quietest.
- What does it cost to enter the flat screen spline niche?
- Listings span $9.22–$29.85; the average listing price is $18.36 (sweet spot $15–$100). The average incumbent carries 899 reviews — the moat a new listing must climb.