---
title: "Mailbox Insert — $345K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/mailbox-insert"
last_updated: "2026-08-06T19:33:02.495Z"
locale: en
meta:
description: "Niche score 52/100 · $345K/yr market · 152K searches/yr · $52.07 avg price. Soft demand (-8.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $345K/yr market · 152K searches/yr · $52.07 avg price. Soft demand (-8.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Mailbox Insert — $345K/yr Amazon US Niche (2026) - Flapen"
---
# **mailbox insert**
**Worth a look**
Shows a sweet-spot price point ($52.07 avg), but soft demand (-8.2% this quarter) keeps it on the watch list.
Market size 53Growth 21Conversion 53Competition 59Returns 59Price range 25Avg price 92Brand share 52Review moat 82Quality gap 53
**Avg price**
**Great****$52.07**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****350.42**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Good****2.7%**
return rate — above 5% kills the launch gate
**Market size**
**Good****$345K**
$345K/yr · 152K searches
**Conversion**
**Good****4.3%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Price range**
**Okay****$15.60–$352.03**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-8.2%**
90-day search growth — must beat 0% to launch
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, mailbox insert is a $345K/yr Amazon United States market (152K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Sep. Verdict: Worth a look — 52/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mailbox insert market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **$208K–$260K**
- units × avg price
- **Conversion rate**
- **4.3%**
- **Avg BSR**
- **#79**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **77%**
- **Out of stock**
- **5.6%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **142 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▲rising
**Sellers**
**45**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 86%
**Open market**
**21%**
- Bayshore Mailbox Company28% - OKBA18% - Generic17% - VELQUA6% - Moxweyeni5% - DIICCYO5%
## **Demand & seasonality**
Weekly Amazon search volume, last 94 weeks — -8.2% search growth over the last 90 days.
4K3KHoliday '24Spike '25 seasonDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/mailbox-insert/trend)
## **Top mailbox insert search terms**
- **mailbox door replacement**48K/yr-16.3%4.8% conv. - **mailbox replacement door**20K/yr+6.2%3.7% conv. - **mailbox door**19K/yr-14.4%3.7% conv. - **plastic mailbox door replacement**11K/yr-16.9%0.5% conv. - **mailbox insert**12K/yr+0.0%0.8% conv. - **mailbox insert for brick mailbox**9K/yr+16.9%0.9% conv. - **mailbox lid replacement**9K/yr-11.0%4.4% conv. - **replacement mailbox door**7K/yr-11.7%5.1% conv. - **mailbox liner**4K/yr+15.3%0.6% conv. - **mail box door replacements**5K/yr-9.2%4.3% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/mailbox-insert/search-terms)
## **Top mailbox insert 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%5%$17K10%$34K15%$52K20%$69K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**6 1/4 Inch (W) by 8 Inch (H) RetroFit Snap-in Replacement Mailbox Door**Bayshore Mailbox Company**$34.30**4.6★3,240 rev](https://www.amazon.com/dp/B008D70J6W) [2**Mailbox Door Replacement 6 1/4 Inch(W) by 8 Inch(H) for Brick Mailbox Door**OKBA**$22.47**4.8★47 rev](https://www.amazon.com/dp/B0GLP4KJ22) [3**6 1/4 W x 8 1/4 H Mailbox Door Replacement Panel Black Galvanized Steel Snap-in Front Door with Flat-Head Screws Easy No-Drill Kit for Standard Residential Curbside & Brick Mailboxes**Generic**$30.43**4.6★21 rev](https://www.amazon.com/dp/B0G5HFWW73) [4**8 Inch (Width) by 10 Inch (Height) RetroFitSnap-in Mailbox Door Replacement - Black**Bayshore Mailbox Company**$43.64**4.6★1,253 rev](https://www.amazon.com/dp/B00KVNM2U2) [5**VELQUA 6.25W x 8.25H Arm Scratch Free Mailbox Door Replacement Black Metal Front Panel with Install Kit Fits Most Mailboxes No Tool Hand Tighten Screw Fixed Repair Rusted or Damaged Mailbox Door**VELQUA**$20.23**5.0★4 rev](https://www.amazon.com/dp/B0GDW1Q5H1)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**EZ Mail Tray Mailbox Tray Insert & Extender Slide Out Mailbox Tray for Easy Retrieval Keeps Mail Dry 6 Sizes for Custom Fit Durable & Weather-Resistant Made in USA (Medium: 5.75 x 18)**EZ MAIL TRAY**$18.85**14 rev3mo ago](https://www.amazon.com/dp/B0GVC731L7) [**RUBII Magnetic Mailbox Door Replacement 6 1/4 x 8 1/4 Snap-in Mailbox Door Panel Black Metal Mail Box Doors for Outdoor Residential Brick Mailbox Doors Repair**RUBII**$21.68**10 rev3mo ago](https://www.amazon.com/dp/B0GVGWZNXX) [**Mailbox Door Replacement with Number Stickers 6 1/4 W x 8 1/4 H Steel Snap-in Door Magnetic Closure Screws Included Fits Curbside & Brick Mailboxes - Repair Kit for Rusted Mailbox White**FIZZBOP**$23.15**8 rev4mo ago](https://www.amazon.com/dp/B0GL8DNSHH) [**Mailbox Replacement Door BlackMagnetic Mailbox Door ReplacementMailboxes Repair Kit 6 1/4(W) x 8 1/4(H) Easy InstallationSuitable for Replacing The Doors of Most Standard Brick Mailboxes**Generic**$23.55**5 rev5mo ago](https://www.amazon.com/dp/B0GMKC8FGP) [**Mailbox Door Replacement 6 1/4 Inch(W) by 8 Inch(H) for Brick Mailbox Door**OKBA**$22.47**47 rev5mo ago](https://www.amazon.com/dp/B0GLP4KJ22)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**EZ Mail Tray Mailbox Tray Insert & Extender Slide Out Mailbox Tray for Easy Retrieval Keeps Mail Dry 6 Sizes for Custom Fit Durable & Weather-Resistant Made in USA (Medium: 5.75 x 18)**EZ MAIL TRAY**$18.85**3.8★**▲ 234%**](https://www.amazon.com/dp/B0GVC731L7) [**RUBII Magnetic Mailbox Door Replacement 6 1/4 x 8 1/4 Snap-in Mailbox Door Panel Black Metal Mail Box Doors for Outdoor Residential Brick Mailbox Doors Repair**RUBII**$21.68**5.0★**▲ 233%**](https://www.amazon.com/dp/B0GVGWZNXX) [**6 1/4(W) x 8 1/4(H)-Mailbox Door Replacement Exact Size - Black Metal Snap-in Front Panel with Easy Installation Kit Fits Standard Residential Mailboxes Brick Mailbox**Bvqvur**$27.84**4.5★**▲ 233%**](https://www.amazon.com/dp/B0GSVYYZRJ) [**VELQUA 6.25W x 8.25H Arm Scratch Free Mailbox Door Replacement Black Metal Front Panel with Install Kit Fits Most Mailboxes No Tool Hand Tighten Screw Fixed Repair Rusted or Damaged Mailbox Door**VELQUA**$20.23**5.0★**▲ 233%**](https://www.amazon.com/dp/B0GDW1Q5H1) [**Mailbox Replacement Door BlackMagnetic Mailbox Door ReplacementMailboxes Repair Kit 6 1/4(W) x 8 1/4(H) Easy InstallationSuitable for Replacing The Doors of Most Standard Brick Mailboxes**Generic**$23.55**4.5★**▲ 223%**](https://www.amazon.com/dp/B0GMKC8FGP)
**~~View all trending →~~**
## **What buyers say about mailbox insert**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**19%
*“Easy Install”*
**Size-Overall**19%
*“fits as described”*
**Quality-Overall**10%
*“Excellent product”*
**Value For Money**7%
*“Great deal”*
**Strength**6%
*“Well made sturdy construction”*
**Advertised Vs Actual Product**5%
*“Just what I wanted”*
**Ease Of Use**4%
*“EASY”*
**Magnetic Strength/Adsorption**4%
*“The magnet is strong”*
**Efficiency**3%
*“Works great”*
**Locking Mechanism**3%
*“Lid locks well”*
### **What buyers complain about **
**Magnetic Strength/Adsorption**11%
*“magnet fell off and cant find”*
**Size-Overall**8%
*“It did not fit our mailbox”*
**Rusts/Corrodes**6%
*“Its suppose to be brand new and already rusting”*
**Quality-Overall**5%
*“Poor quality”*
**Assembly/Installation**5%
*“the problem began the I started tightening the screws per the instructions”*
**Ease Of Use**4%
*“Hard to close”*
**Value For Money**3%
*“Very expensive”*
**Durability**3%
*“I'm not sure how long that will last”*
**Instructions/User Manual/Troubleshooting**3%
*“Note that instructions were not in the list of things that were included”*
**Material Quality**2%
*“I feel like for the price the materials were a little cheap”*
### **Top return reasons **
**Size-Overall**76%
**Material Quality**3%
**Advertised Vs Actual Product**3%
**Compatibility-Overall**3%
**Defective Material/Parts**2%
**Functionality-Overall**1%
**Assembly/Installation**1%
**Value For Money**1%
**Height**1%
**Magnetic Strength/Adsorption**1%
## **Common questions**
- **Is mailbox insert profitable to sell on Amazon United States?**
- The niche generates $345K/yr across 31 tracked products. 0 of 21 products launched in the last 360 days are still selling. 90-day search growth is -8.2%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the mailbox insert niche?**
- 19 brands and 45 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in mailbox insert?**
- Top complaints mined from reviews: Magnetic Strength/Adsorption, Size-Overall, Rusts/Corrodes. The return rate is 2.7%.
- **When does demand for mailbox insert peak?**
- Demand peaks in Sep; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the mailbox insert niche?**
- Listings span $15.60–$352.03; the average listing price is $52.07 (sweet spot $15–$100). The average incumbent carries 350 reviews — the moat a new listing must climb.
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