---
title: "Insulation Knife — $138K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/insulation-knife"
last_updated: "2026-08-06T03:22:47.001Z"
locale: en
meta:
description: "Niche score 51/100 · $138K/yr market · 134K searches/yr · $17.75 avg price. Soft demand (-5.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $138K/yr market · 134K searches/yr · $17.75 avg price. Soft demand (-5.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Insulation Knife — $138K/yr Amazon US Niche (2026) - Flapen"
---
# **insulation knife**
**Worth a look**
Shows low returns (1.1%), but soft demand (-5.6% this quarter) keeps it on the watch list.
Market size 30Growth 22Conversion 65Competition 40Returns 94Price range 81Avg price 82Brand share 66Review moat 88Quality gap 24
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****248.91**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$17.75**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.39–$40.65**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****5.8%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****61%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$138K**
$138K/yr · 134K searches
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-5.6%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, insulation knife is a $138K/yr Amazon United States market (134K searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **insulation knife market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **$142K–$178K**
- units × avg price
- **Conversion rate**
- **5.8%**
- **Avg BSR**
- **#263**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **86%**
- **Out of stock**
- **3.1%**
- **Avg brand age**
- **67 months**
- **Avg seller age**
- **170 days**
## **Competition & brand share**
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▼falling
**Sellers**
**35**
**Top-5 brand share**
**65%**
Top 20: 100%
**Top-5 click share**
**61%**
Top 20: 98%
**Open market**
**26%**
- ykpiw21% - Goldblatt13% - Red Devil13% - Pinoze10% - KLEIN TOOLS8% - minyuexia8%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.6% search growth over the last 90 days.
3K2KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/insulation-knife/trend)
## **Top insulation knife search terms**
- **insulation knife**88K/yr-4.0%5.7% conv. - **insulation knife for cutting insulation**10K/yr+8.9%6.3% conv. - **cuchillo para insulation**7K/yr+1.2%2.2% conv. - **insulation saw**6K/yr-10.6%3.4% conv. - **insulation cutting knife**4K/yr+16.0%4.4% conv. - **insulation cutter**5K/yr-25.4%2.2% conv. - **rockwool insulation knife**4K/yr-21.5%12.7% conv. - **fiberglass insulation knife**4K/yr-0.4%5.7% conv. - **rockwool knife**3K/yr-5.9%15.8% conv. - **rockwool insulation cutting knife**2K/yr-66.0%9.3% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/insulation-knife/search-terms)
## **Top insulation knife 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%$14K20%$28K30%$41K40%$55K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**YKPIW Insulation Knife with Measuring Scale Stainless Steel Double-Sided Serrated Insulation Cutter Tool with Nylon Sheath for Rockwool Foam Fiberglass Drywall Lawn and Garden**ykpiw**$14.04**4.8★81 rev](https://www.amazon.com/dp/B0GL1SDFTB) [2**Goldblatt Rockwool Insulation Knife Sod Cutter Tool for Cutting Fiberglass**Goldblatt**$18.48**4.6★477 rev](https://www.amazon.com/dp/B0B87Y6HRX) [3**Red Devil 4609 8 Inch Batting Knife High-Carbon Steel Blade Durable Hardwood Handle for Precision Insulation Cutting**Red Devil**$14.04**4.4★401 rev](https://www.amazon.com/dp/B08224K2D5) [4**KLEIN TOOLS DK16 Double-Edged Duct Knife Serrated Stainless Steel Blade Designed for Duct Board and Insulation Fixed Blade Knife with Sheath 5-1/2-Inch**KLEIN TOOLS**$20.05**4.8★114 rev](https://www.amazon.com/dp/B0FXC2LLH6) [5**minyuexia Insulation Knife & Sod Cutter Knife 11.14-Inch Stainless Steel Sharp Double Sided Blade for foam insulation Rockwool and Lawn Repair**minyuexia**$12.73**4.6★80 rev](https://www.amazon.com/dp/B0FH9DXJMR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**YKPIW Insulation Knife with Measuring Scale Stainless Steel Double-Sided Serrated Insulation Cutter Tool with Nylon Sheath for Rockwool Foam Fiberglass Drywall Lawn and Garden**ykpiw**$14.04**81 rev5mo ago](https://www.amazon.com/dp/B0GL1SDFTB) [**wfljl Multi-Purpose Insulation Knife with Sheath 16.8 Double-Sided Serrated Stainless Steel Blade for Cutting Foam Rockwool Fiberglass Insulation Foam Board and Sod**wfljl**$9.72**29 rev7mo ago](https://www.amazon.com/dp/B0GC5TVLB5) [**Dexter-Russell 8 Tiger Edge Insulation Knife Soft Black Handle**Dexter**$40.65**7 rev8mo ago](https://www.amazon.com/dp/B0G3QTVD9X) [**Dexter-Russell 5.5 Scalloped Insulation Knife Slip-Resistant Handle**Dexter**$29.02**7 rev8mo ago](https://www.amazon.com/dp/B0G3R18WGY) [**KLEIN TOOLS DK16 Double-Edged Duct Knife Serrated Stainless Steel Blade Designed for Duct Board and Insulation Fixed Blade Knife with Sheath 5-1/2-Inch**KLEIN TOOLS**$20.05**114 rev9mo ago](https://www.amazon.com/dp/B0FXC2LLH6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**WORKPRO Insulation Knife 11-Inch Stainless Steel Blade Insulation Cutter**WORKPRO**$14.73**4.5★**▲ 232%**](https://www.amazon.com/dp/B0FX9PDYZX) [**YKPIW Insulation Knife with Measuring Scale Stainless Steel Double-Sided Serrated Insulation Cutter Tool with Nylon Sheath for Rockwool Foam Fiberglass Drywall Lawn and Garden**ykpiw**$14.04**4.8★**▲ 191%**](https://www.amazon.com/dp/B0GL1SDFTB) [**WORKPRO 8-Inch Insulation Knife Stainless Steel Blade Insulation Cutter**WORKPRO**$13.62**4.5★**▲ 153%**](https://www.amazon.com/dp/B0FX9R1D8F) [**Dexter-Russell 5.5 Scalloped Insulation Knife Slip-Resistant Handle**Dexter**$29.02**5.0★**▲ 144%**](https://www.amazon.com/dp/B0G3R18WGY) [**PINOZE 8 Insulation Knife Stainless Steel Blade Insulation Cutter w/Laser Scale Dual-Side Serrated Duct Knife Tool with Sheath for Cutting Heat Material Foam/Rockwool/Styrofoam Garden Sod Cutter**Pinoze**$14.58**4.6★**▲ 86%**](https://www.amazon.com/dp/B0DJZ8Q9LZ)
**~~View all trending →~~**
## **What buyers say about insulation knife**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sharpness**14%
*“It arrived sharp”*
**Quality-Overall**11%
*“Awesome quality”*
**Value For Money**10%
*“Worth every penny”*
**Ease Of Use**9%
*“Easy to use”*
**Grip**7%
*“It has a nice comfortable grip”*
**Advertised Vs Actual Product**6%
*“Works as advertised”*
**Strength**5%
*“The blade feels strong”*
**Durability**5%
*“Well made and durable”*
**Measurement/Reading Accuracy**4%
*“the measuring scale is a nice bonus”*
**Precision Of Cut**4%
*“cuts very well”*
### **What buyers complain about **
**Sharpness**13%
*“Works well just doesn't stay sharp for long”*
**Ease Of Use**9%
*“wasnt able to do with ease”*
**Functionality-Overall**8%
*“nothing worked as good as this knife”*
**Quality-Overall**8%
*“after extended use it feels a little cheap”*
**Advertised Vs Actual Product**5%
*“I honestly believe if one of the pictures showed that the sheath was paper. There would be a lot fewer sales”*
**Precision Of Cut**4%
*“Everything else has been cutting like butter”*
**Material Quality**4%
*“Sheath seems like a tough Cordura material”*
**Hard Feel**4%
*“Very hard pass on this one”*
**Color**4%
*“But dont like it is dark”*
**Size-Overall**3%
*“it is a bit bigger than I pictured or was pictured”*
### **Top return reasons **
**Size-Overall**23%
**Functionality-Overall**15%
**Advertised Vs Actual Product**13%
**Sharpness**11%
**Value For Money**4%
**Weight Heavy**4%
**Product Condition**4%
**Compatibility-Overall**2%
**Comfort-Overall**2%
**Material Quality**2%
## **Common questions**
- **Is insulation knife profitable to sell on Amazon United States?**
- The niche generates $138K/yr across 22 tracked products. 4 of 8 products launched in the last 360 days are still selling. 90-day search growth is -5.6%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the insulation knife niche?**
- 15 brands and 35 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in insulation knife?**
- Top complaints mined from reviews: Sharpness, Ease Of Use, Functionality-Overall. The return rate is 1.1%.
- **When does demand for insulation knife peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the insulation knife niche?**
- Listings span $9.39–$40.65; the average listing price is $17.75 (sweet spot $15–$100). The average incumbent carries 249 reviews — the moat a new listing must climb.
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