Backer Rod Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Backer Rod sales on Amazon US totaled 14,800 units in July 2026 (▼ 3.9% vs. the prior month), generating an estimated $151,517 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 82.4% of unit volume and 60.6% of revenue, while a typical listing is priced at $20.95. The keyword itself pulled 16,288 Amazon queries over the same period (▲ 11.4% MoM).
Zooming out to the 12-month window ending July 2026, the backer rod Top 50 moved 156,350 units and $1,449,309 in cumulative sales — an average of 13,029 units and $120,776 per month. Monthly throughput topped out at 15,400 units in June 2026 and dipped to 8,100 in May 2026, leaving the latest reading 24.4% higher than August 2025.
Backer Rod Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
14.8K
▼ 3.9% MoM
Monthly Revenue 2026/07
$151.5K
▼ 0.8% MoM
Top 10 Market Share 2026/07
82.4%
Backer Rod Market Share & Sales Concentration on Amazon US — July 2026
The most-sold backer rod listing on Amazon US in July 2026 is ASIN B0C9VT9KD2 (Brand: GE), which sold 6,000 units at $7.97 apiece — equal to 40.5% of every unit tracked in this report and 3.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 12,200 units and $91,780 in July 2026 — 82.4% of unit volume and 60.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Backer Rod' on Amazon
July 2026
Is 82.4% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B0C9VT9KD2
GE Advanced Silicone Caulk for Window & Door, Clear, 2.8 fl oz Tube, 1 Pack - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Freeze & Sun Proof
6K
▲ 20.0%vs. prior month
$47.8K
latest month
12-month trend
B000BQWOC0
MD Building Foam Backer Rod, Gray, 1/2in x 20ft for Medium Gaps | Closed-Cell Foam, Prevents Caulk Waste, Cuts With Scissors, Blocks Drafts Moisture Dust Insects, Indoor/Outdoor
2K
▼ 50.0%vs. prior month
$8K
latest month
12-month trend
B0FGKN74RM
CCY Caulk Saver, Reusable Tube Sealer with Puncture Pin, 4 Pack | Over 1 million sold, fits smooth and ring-lock nozzles like GE and DAP, prevents dried tips, pull-off sleeve, US-patented
2K
▲ 0.0%vs. prior month
$15K
latest month
12-month trend
B0D2W6FNVM
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.
400
▲ 0.0%vs. prior month
$4K
latest month
12-month trend
B013XSV3A6
SIKA Closed Cell Foam Backer Rod, Gray, 3/4" Diameter x 20' Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks and Joints
400
▲ 33.3%vs. prior month
$3.2K
latest month
12-month trend
B0D3CX2HZX
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)
400
▲ 100.0%vs. prior month
$4K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Backer Rod Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
GE is the best-performing backer rod brand in July 2026, moving 6,000 units across 1 ASIN for 49.2% of Top 10 volume. M-D Building Products follows with 2,500 units (20.5%), ahead of Caulk Cap on 2,000 units (16.4%).
With 7 brands splitting the Top 10 and 86.1% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $7.09 to $7.97, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
GE
1 ASIN in Top 10
49.2%
Units
6K
Revenue
$47.8K
Avg. price
$7.97
B0C9VT9KD2
$7.97·★4.6·1.8K revsGE Advanced Silicone Caulk for Window & Door, Clear, 2.8 fl oz Tube, 1 Pack - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Freeze & Sun Proof
Units sold6K
M-D Building Products
3 ASINs in Top 10
20.5%
Units
2.5K
Revenue
$11.8K
Avg. price
$7.09
B000BQWOC0
$4.47·★4.6·5.4K revsMD Building Foam Backer Rod, Gray, 1/2in x 20ft for Medium Gaps | Closed-Cell Foam, Prevents Caulk Waste, Cuts With Scissors, Blocks Drafts Moisture Dust Insects, Indoor/Outdoor
Units sold2KB000BQP1D4
$4.94·★4.6·5.4K revsMD Building Foam Backer Rod, Gray, 20ft x 5/8in for Large Gaps | Closed-Cell Foam, Prevents Caulk Waste, Cuts With Scissors, Blocks Drafts Moisture Dust Insects, Indoor/Outdoor
Units sold300B011C87FYC
$11.85·★4.6·5.4K revsMD Building Foam Backer Rod for 3/4in Gaps and Joints, Gray, 15ft | Closed-Cell Foam, Prevents Caulk Waste, Cuts With Scissors, Blocks Drafts Moisture Dust Insects, Indoor/Outdoor
Units sold200
Caulk Cap
1 ASIN in Top 10
16.4%
Units
2K
Revenue
$15K
Avg. price
$7.49
B0FGKN74RM
$7.49·★4.7·486 revsCCY Caulk Saver, Reusable Tube Sealer with Puncture Pin, 4 Pack | Over 1 million sold, fits smooth and ring-lock nozzles like GE and DAP, prevents dried tips, pull-off sleeve, US-patented
Units sold2K
Trending Backer Rod Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, 2 ASINs forced its way in: B000BQP1D4 booked 300 units at $4.94. On the growth side, B0D3CX2HZX leads positive momentum with ▲ 100.0% MoM growth on 400 units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B000BQP1D4
MD Building Foam Backer Rod, Gray, 20ft x 5/8in for Large Gaps | Closed-Cell Foam, Prevents Caulk Waste, Cuts With Scissors, Blocks Drafts Moisture Dust Insects, Indoor/Outdoor
Price
$4.94
Rating
4.6
Reviews
5.4K
Latest month sales
B011C87FYC
MD Building Foam Backer Rod for 3/4in Gaps and Joints, Gray, 15ft | Closed-Cell Foam, Prevents Caulk Waste, Cuts With Scissors, Blocks Drafts Moisture Dust Insects, Indoor/Outdoor
Price
$11.85
Rating
4.6
Reviews
5.4K
Latest month sales
B0D3CX2HZX
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)
Unlock to view ASIN details and product titles
Price
$9.99
Rating
4.5
Reviews
411
Latest month sales
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