backer rod 1/4
Worth a lookShows searches that convert (11.4% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Conversion
Great11.4%search→purchase rate — share of searches ending in a sale
Price range
Great$4.39–$69.83cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great417.96avg incumbent reviews — the moat a new listing must climb
Avg price
Great$15.11avg listing price — sweet spot $15–$100
Brand share
Good64%top-5 brand share — brands hold most of the demand
Returns
Good2.7%return rate — above 5% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Competition
Good55%top-5 click share — leaders hold, buyers still browse
Growth
Okay+12.4%90-day search growth — must beat 0% to launch
Market size
Bad$91K$91K/yr · 53K searches
According to Flapen's Amazon United States niche tracking, backer rod 1/4 is a $91K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in Jul. Verdict: Worth a look — 56/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
backer rod 1/4 market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $91K–$121K
- units × avg price
- Conversion rate
- 11.4%
- Avg BSR
- #1,059
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 87%
- Out of stock
- 0.0%
- Avg brand age
- 42 months
- Avg seller age
- 197 days
Competition & brand share
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.Brands
17 rising
Sellers
39
Top-5 brand share
64%
Top 20: 100%
Top-5 click share
55%
Top 20: 96%
Open market
30%
- Acuteye25%
- Macepason16%
- MotiMind9%
- Orgthin8%
- ToLanbbt6%
- Mutual Industries6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +12.4% search growth over the last 90 days.Peak months: Jul · busiest ÷ quietest = 2.3×
Top backer rod 1/4 search terms
- backer rod 1/425K/yr
- 1/4 backer rod12K/yr
- foam backer rod 1/4 inch6K/yr
- backer rod 1/4 inch3K/yr
- 1/4 inch backer rod4K/yr
- 1/4 foam backer rod3K/yr
Top backer rod 1/4 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 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Backer Rod 1/4 Inch EPDM Rubber Foam Caulk Saver 16.4 Grey Weather Strip Seal for Concrete Joints Wall Cracks Driveway and Joint Fillers.
Acuteye$9.864.5★263 rev
Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Filler Rope Concrete Joint Filler (1/4 Inch x 10 Feet)
Macepason$6.894.5★379 rev
Orgthin 20FT Thin Backer Rod 1/4 inch Black Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal for Gaps and Joints
Orgthin$7.954.6★130 rev
MotiMind 1/4 Inch x 100 ft Foam Backer Rod for Gaps Joints Concrete Crack Filler Caulk Saver Bulk Foam Backing Rod Concrete Filler Rope for Weather Stripping Door Seal (Black)
MotiMind$18.754.6★282 rev
Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Filler Rope Concrete Joint Filler (1/4 Inch x 33 Feet)
Macepason$9.864.5★379 rev
Newest
by launch date
Backer Rod 1/4 Inch Caulk Saver Foam Backing Rod for Concrete Expansion Joints Weather Strip Seal Filler Rope Rubber Foam Seal for Gaps and Joints Concrete Filling (1/4 Inch x 16.4 Feet)
Skrfren$6.853 rev
Backer Rod 1/4 inch EPDM Closed-Cell Foam Caulk Saver for Expansion Joint Filling Gap Sealing Concrete Cracks Windows and Doors Gray (33ft)
MOXONA$11.6037 rev
ToLanbbt EPDM Backer Rod 1/4In x 100FT Weather Stripping Seal Rubber Caulk Saver Round Backing Rod for Concrete Expansion Joints Driveway Cracks Gaps Filler (Gray)
ToLanbbt$19.2431 rev
ToLanbbt EPDM Backer Rod 1/4In x 100FT Weather Stripping Seal Rubber Caulk Saver Round Backing Rod for Concrete Expansion Joints Driveway Cracks Gaps Filler (White)
ToLanbbt$18.7131 rev
MYFAMIREA 100FT Backer Rod 1/4 Inch EPDM Rubber Caulk Saver Weather Strip Seal Concrete Expansion Joint Filler for Gaps and Joints Gray
MYFAMIREA$18.87194 rev
Trending
90-day click momentumBacker Rod 1/4 Inch Caulk Saver Foam Backing Rod for Concrete Expansion Joints Weather Strip Seal Filler Rope Rubber Foam Seal for Gaps and Joints Concrete Filling (1/4 Inch x 16.4 Feet)
Skrfren$6.853.4★
ToLanbbt EPDM Backer Rod 1/4In x 100FT Weather Stripping Seal Rubber Caulk Saver Round Backing Rod for Concrete Expansion Joints Driveway Cracks Gaps Filler (White)
ToLanbbt$18.714.4★
Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Fillers Caulk Saver Backing Rod Concrete Filler Rope Joint Filler (1/4 Inch X 10 Feet)
BHUCUTU$6.614.7★
Gukvozi Backer Rod 1/4 Inch 26 FT Rubber Foam Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal for Gaps and Joints Gray (Gray-26FT)
Gukvozi$9.074.7★
MYFAMIREA 100FT Backer Rod 1/4 Inch EPDM Rubber Caulk Saver Weather Strip Seal Concrete Expansion Joint Filler for Gaps and Joints Gray
MYFAMIREA$18.874.4★
What buyers say about backer rod 1/4
What buyers praise and complain about, mined from review topics.What buyers love
“They did the job as desired”
“Decent value”
“Great for stuffing small cracks before filling or just preventing bugs”
“Easy to use”
“Great quality & sealing ability, highly versatile & easy to use”
“Fit well into the cracks”
“Make window maintenance easy”
“Easy installation”
“Strong and durable”
“Its lightweight”
What buyers complain about
“not the best”
“The size is wrong”
Top return reasons
Common questions
- Is backer rod 1/4 profitable to sell on Amazon United States?
- The niche generates $91K/yr across 23 tracked products. 0 of 8 products launched in the last 360 days are still selling. 90-day search growth is +12.4%. Flapen's verdict: Worth a look (56/100).
- How competitive is the backer rod 1/4 niche?
- 17 brands and 39 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 64% of demand.
- What do buyers complain about in backer rod 1/4?
- Top complaints mined from reviews: Quality-Overall, Size-Overall. The return rate is 2.7%.
- When does demand for backer rod 1/4 peak?
- Demand peaks in Jul; the busiest month runs 2.3× the quietest.
- What does it cost to enter the backer rod 1/4 niche?
- Listings span $4.39–$69.83; the average listing price is $15.11 (sweet spot $15–$100). The average incumbent carries 418 reviews — the moat a new listing must climb.