---
title: "Backer Rod 3/4 — $62K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/backer-rod-3-4"
last_updated: "2026-08-06T20:34:52.992Z"
locale: en
meta:
  description: "Niche score 51/100 · $62K/yr market · 22K searches/yr · $20.65 avg price. A small market ($62K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 51/100 · $62K/yr market · 22K searches/yr · $20.65 avg price. A small market ($62K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Backer Rod 3/4 — $62K/yr Amazon US Niche (2026) - Flapen"
---

# **backer rod 3/4**

**Worth a look**

Shows searches that convert (13.5% search→purchase), but a small market ($62K/yr) keeps it on the watch list.

Market size 16Growth 63Conversion 96Competition 34Returns 62Price range 82Avg price 89Brand share 30Review moat 62Quality gap 38

**Conversion**

**Incredible****13.5%**

search→purchase rate — share of searches ending in a sale

**Avg price**

**Great****$20.65**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$4.39–$72.27**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Growth**

**Good****+40.7%**

90-day search growth — must beat 0% to launch

**Review moat**

**Good****1,002.88**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Good****2.5%**

return rate — above 5% kills the launch gate

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****65%**

top-5 click share — leaders hold, buyers still browse

**Brand share**

**Okay****87%**

top-5 brand share — brands hold most of the demand

**Market size**

**Bad****$62K**

$62K/yr · 22K searches

According to Flapen's Amazon United States niche tracking, backer rod 3/4 is a $62K/yr Amazon United States market (22K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Jun–Sep–Oct. Verdict: Worth a look — 51/100.

Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **backer rod 3/4 market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**3K–4K**</dd><dd>avg 100–250/product</dd>

<dt>**Revenue / yr**</dt><dd>**$62K–$83K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**13.5%**</dd>

<dt>**Avg BSR**</dt><dd>**#86**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**100%**</dd>

<dt>**Sponsored**</dt><dd>**82%**</dd>

<dt>**Out of stock**</dt><dd>**1.5%**</dd>

<dt>**Avg brand age**</dt><dd>**58 months**</dd>

<dt>**Avg seller age**</dt><dd>**197 days**</dd>

</dl>

## **Competition & brand share**

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**10 **▼falling

**Sellers**

**31**

**Top-5 brand share**

**87%**

Top 20: 100%

**Top-5 click share**

**65%**

Top 20: 100%

**Open market**

**10%**

- HKACSTHI26% - M-D Building Products22% - zzhxkjhky19% - SIKA10% - YOGHAVRS9% - Tondiamo3% - Open — no brand owns it (4 brands, 10%)

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +40.7% search growth over the last 90 days.

500300Spike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Jun, Sep, Oct · busiest ÷ quietest = 2.3×

[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/backer-rod-3-4/trend)

## **Top backer rod 3/4 search terms**

- **backer rod 3/4 inch**12K/yr+41.1%8.8% conv. - **3/4 backer rod**6K/yr+25.4%11.8% conv. - **foam backer rod 3/4 inch**3K/yr+54.5%10.6% conv. - **backer rod 3/4**2K/yr+62.9%9.7% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/backer-rod-3-4/search-terms)

## **Top backer rod 3/4 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.

0%10%$6K20%$12K30%$19K40%$25K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![M-D Building Products - Versatile Gray Foam Backer Rod - Essential Caulk Saver for Sealing Concrete Gaps Expansion Joints and Crack Filling 3/4 by 15 Feet Black (19101)](https://m.media-amazon.com/images/I/419h9lvOeXL.jpg)**M-D Building Products - Versatile Gray Foam Backer Rod - Essential Caulk Saver for Sealing Concrete Gaps Expansion Joints and Crack Filling 3/4 by 15 Feet Black (19101)**M-D Building Products**$9.78**4.6★5,315 rev](https://www.amazon.com/dp/B011C87FYC) [2![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 10 Feet)](https://m.media-amazon.com/images/I/61JlodRXmFL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 10 Feet)**HKACSTHI**$10.43**4.4★294 rev](https://www.amazon.com/dp/B0D4LYBJJ5) [3![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](https://m.media-amazon.com/images/I/41jI4kCih+L.jpg)**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**SIKA**$8.23**4.6★1,040 rev](https://www.amazon.com/dp/B013XSV3A6) [4![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (3/4 Inches x 10 Feet)](https://m.media-amazon.com/images/I/511koH6bNXL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (3/4 Inches x 10 Feet)**YOGHAVRS**$9.76**4.3★100 rev](https://www.amazon.com/dp/B0DMT2X56L) [5![3/4 Diameter x 100 Length Backer Rod Caulk Saver Foam Backer Rod for Gaps and Joints Backing Concrete Filler](https://m.media-amazon.com/images/I/61rOKpIQbRL.jpg)**3/4 Diameter x 100 Length Backer Rod Caulk Saver Foam Backer Rod for Gaps and Joints Backing Concrete Filler**zzhxkjhky**$38.19**4.5★614 rev](https://www.amazon.com/dp/B0C12ZHJPN)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![LDHHYH Backer Rod 3/4 Inch Diameter x 100 FT Length Foam Backer Rod Caulk Saver Bulk Foam Backing Rod for Gaps Concrete Filling Joints Driveway Crack Grey](https://m.media-amazon.com/images/I/51HnDcBj-6L.jpg)**LDHHYH Backer Rod 3/4 Inch Diameter x 100 FT Length Foam Backer Rod Caulk Saver Bulk Foam Backing Rod for Gaps Concrete Filling Joints Driveway Crack Grey**LDHHYH**$30.32**1 rev8mo ago](https://www.amazon.com/dp/B0G19F81WW) [![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (3/4 Inches x 10 Feet)](https://m.media-amazon.com/images/I/511koH6bNXL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (3/4 Inches x 10 Feet)**YOGHAVRS**$9.76**100 rev1y ago](https://www.amazon.com/dp/B0DMT2X56L) [![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 33 Feet)](https://m.media-amazon.com/images/I/61m4ER8vVqL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 33 Feet)**HKACSTHI**$14.91**294 rev2y ago](https://www.amazon.com/dp/B0D8HNGCN6) [![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 10 Feet)](https://m.media-amazon.com/images/I/61JlodRXmFL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 10 Feet)**HKACSTHI**$10.43**294 rev2y ago](https://www.amazon.com/dp/B0D4LYBJJ5) [![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 1/2 Inch x10 Feet)](https://m.media-amazon.com/images/I/61JlodRXmFL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 1/2 Inch x10 Feet)**HKACSTHI**$9.88**294 rev2y ago](https://www.amazon.com/dp/B0D4M8T7QY)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![LDHHYH Backer Rod 3/4 Inch Diameter x 100 FT Length Foam Backer Rod Caulk Saver Bulk Foam Backing Rod for Gaps Concrete Filling Joints Driveway Crack Grey](https://m.media-amazon.com/images/I/51HnDcBj-6L.jpg)**LDHHYH Backer Rod 3/4 Inch Diameter x 100 FT Length Foam Backer Rod Caulk Saver Bulk Foam Backing Rod for Gaps Concrete Filling Joints Driveway Crack Grey**LDHHYH**$30.32**5.0★**▲ 135%**](https://www.amazon.com/dp/B0G19F81WW) [![3/4 Diameter x 40 Length Backer Rod Caulk Saver Foam Backer Rod for Gaps and Joints Backing Concrete Filler](https://m.media-amazon.com/images/I/61rOKpIQbRL.jpg)**3/4 Diameter x 40 Length Backer Rod Caulk Saver Foam Backer Rod for Gaps and Joints Backing Concrete Filler**zzhxkjhky**$19.45**4.5★**▲ 116%**](https://www.amazon.com/dp/B0BPSNL6HP) [![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](https://m.media-amazon.com/images/I/41jI4kCih+L.jpg)**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**SIKA**$8.23**4.6★**▲ 72%**](https://www.amazon.com/dp/B013XSV3A6) [![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 10 Feet)](https://m.media-amazon.com/images/I/61JlodRXmFL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 10 Feet)**HKACSTHI**$10.43**4.4★**▲ 64%**](https://www.amazon.com/dp/B0D4LYBJJ5) [![Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 33 Feet)](https://m.media-amazon.com/images/I/61m4ER8vVqL.jpg)**Foam Backer Rod for Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black 3/4 Inch x 33 Feet)**HKACSTHI**$14.91**4.4★**▲ 49%**](https://www.amazon.com/dp/B0D8HNGCN6)

**~~View all trending →~~**

## **What buyers say about backer rod 3/4**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Value For Money**30%

*“Decent value”*

**Efficiency**14%

*“Worked great”*

**Advertised Vs Actual Product**13%

*“Product as described”*

**Ease Of Use**12%

*“Easy to use”*

**Material Quality**6%

*“The material looks to be pretty good for backer rod applications”*

**Maintenance And Repair**5%

*“Make window maintenance easy”*

**Assembly/Installation**5%

*“Easy installation”*

**Size-Overall**4%

*“It is simple to cut to size”*

**Durability**4%

*“Strong and durable”*

**Quality-Overall**3%

*“Great quality & sealing ability, highly versatile & easy to use”*

### **What buyers complain about **

**Value For Money**25%

*“It should not cost more than $1”*

**Quality-Overall**25%

*“Very Cheap”*

**Thickness**21%

*“not as soft as the thinner ones I have”*

**Functionality-Overall**13%

*“doesn't really work”*

**Size-Overall**8%

*“A bit to big”*

**Flexibility**8%

*“A bit to big and stiff”*

### **Top return reasons **

**Size-Overall**77%

**Advertised Vs Actual Product**5%

**Value For Money**4%

**Thickness**4%

**Thin**2%

**Defective Material/Parts**1%

**Functionality-Overall**1%

**Color**1%

**Quality-Overall**1%

**Ease Of Use**1%

## **Common questions**

<dl>

<dt>**Is backer rod 3/4 profitable to sell on Amazon United States?**</dt><dd>The niche generates $62K/yr across 17 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +40.7%. Flapen's verdict: Worth a look (51/100).</dd>

<dt>**How competitive is the backer rod 3/4 niche?**</dt><dd>10 brands and 31 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 87% of demand.</dd>

<dt>**What do buyers complain about in backer rod 3/4?**</dt><dd>Top complaints mined from reviews: Value For Money, Quality-Overall, Thickness. The return rate is 2.5%.</dd>

<dt>**When does demand for backer rod 3/4 peak?**</dt><dd>Demand peaks in Jun–Sep–Oct; the busiest month runs 2.3× the quietest.</dd>

<dt>**What does it cost to enter the backer rod 3/4 niche?**</dt><dd>Listings span $4.39–$72.27; the average listing price is $20.65 (sweet spot $15–$100). The average incumbent carries 1,003 reviews — the moat a new listing must climb.</dd>

</dl>

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