---
title: "Window Box Liners — $22K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/window-box-liners"
last_updated: "2026-08-09T07:43:04.096Z"
locale: en
meta:
description: "Niche score 69/100 · $22K/yr market · 43K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 69/100 · $22K/yr market · 43K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Window Box Liners — $22K/yr Amazon US Niche (2026) - Flapen"
---
# **window box liners**
**Worth a look**
Shows demand growing +125.1% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 5Growth 95Conversion 34Competition 89Returns 93Price range 73Avg price 83Brand share 90Review moat 75Quality gap 67
**Growth**
**Incredible****+125.1%**
90-day search growth — must beat 0% to launch
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****45%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****26%**
top-5 click share — an open shelf
**Avg price**
**Great****$18.36**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****500.37**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$8.88–$31.79**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****2.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$22K**
$22K/yr · 43K searches
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** 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, window box liners is a $22K/yr Amazon United States market (43K searches/yr). The top 5 brands hold 45% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Worth a look — 69/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **window box liners market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$28K–$37K**
- units × avg price
- **Conversion rate**
- **2.7%**
- **Avg BSR**
- **#90**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **85%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **179 days**
## **Competition & brand share**
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.
**Brands**
**39 **▲rising
**Sellers**
**50**
**Top-5 brand share**
**45%**
Top 20: 84%
**Top-5 click share**
**26%**
Top 20: 58%
**Open market**
**50%**
- Wshxjzyay13% - Riare10% - HHTHH8% - Winlyn7% - Legigo6% - SUNYAY5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +125.1% search growth over the last 90 days.
5K4KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 18.2×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/window-box-liners/trend)
## **Top window box liners search terms**
- **window box liners**20K/yr+179.8%3.7% conv. - **planter box liner**19K/yr+80.6%2.8% conv. - **liner for planter box**4K/yr+116.3%3.4% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/window-box-liners/search-terms)
## **Top window box liners 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%2%$4334%$8656%$1K8%$2K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Wshxjzyay 63 * 83 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained**Wshxjzyay**$19.35**4.4★95 rev](https://www.amazon.com/dp/B0FFMSFQ18) [2**10 Pcs Plastic Planter Liners Clear Rectangular Plastic Liners for Flower Box Planter Window Box Planter 16.2 L x 3 W x 3.5 H for Indoor Outdoor Flower Arrangement Succulent Garden Windowsill Decor**Winlyn**$15.60**4.2★250 rev](https://www.amazon.com/dp/B09SL51VFM) [3**Wshxjzyay 63 * 114 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained**Wshxjzyay**$20.20**4.4★95 rev](https://www.amazon.com/dp/B0FFMPTNRQ) [4**HHTHH 2pcs Trough Coco Liner 36 inch Wall Planter Replaceable Coco Liner for Window Box Fence Flower Baskets**HHTHH**$22.46**4.3★1,763 rev](https://www.amazon.com/dp/B08D7888QK) [5**Karlliu 2 Pack 24 Inch Trough Coconut Liners for Window Box Planter Natural Coco Fiber Replacement Liner for Outdoor Plants Flowers Outside Coir Planters Porch Balcony Garden Decor**Karlliu**$15.82**4.3★720 rev](https://www.amazon.com/dp/B0BL1612GW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**OAKENZ Square Planter Box Liner Bags Heavy-Duty Horticultural Planter Bag Inserts for Square Planter Boxes UV-Resistant Garden Planter Liners (1 Large (20 in))**OAKENZ**$15.82**10 rev5mo ago](https://www.amazon.com/dp/B0GLMFB7M6) [**EcoBrisa 63*83IN Raised Garden Bed Liner 2pcs Non Woven Fabric for Large Veg Trough Cuttable Plant Liner Keeps Soil Contained & Water Drainage for Outdoor Planter Veg Trough**EcoBrisa**$20.36**30 rev5mo ago](https://www.amazon.com/dp/B0GJRRLCT3) [**DONGXYTWH 2-Pack 24 Inch Coco Liners for Planters Trough Coco Liner for Window Box Fence Flower Baskets | Coco Liners for Hanging Baskets Planter Box Liner 24 Inch Coconut Liners for Planters.**DONGXYTWH**$13.54**61 rev5mo ago](https://www.amazon.com/dp/B0GHMS5N9M) [**Wshxjzyay 63 * 83 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained**Wshxjzyay**$19.35**95 rev1y ago](https://www.amazon.com/dp/B0FFMSFQ18) [**Wshxjzyay 63 * 114 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained**Wshxjzyay**$20.20**95 rev1y ago](https://www.amazon.com/dp/B0FFMPTNRQ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**REMIAWY Coco Liners for Planters 24 Inch 2 Packs Natural Coconut Fiber Coir Flower Basket Window Box Liners Trough Planter Insert for Outdoor Plant Large Pots Garden Fence Decoration**REMIAWY**$14.24**4.1★**▲ 78%**](https://www.amazon.com/dp/B0DKXV6NWR) [**XXINGEM 3Pcs Pre-Formed Coco Fiber Liners for Planters Window Boxes & Fence Flower Baskets Replacement (24in)**XXINGEM**$20.56**3.9★**▲ 73%**](https://www.amazon.com/dp/B0DR1JM65H) [**HFHOME 2Pcs 24 Trough Coco Fiber Replacement Liner 24 inch Window Deck Coco Replacement Liners for Window Box**HFHOME**$14.78**4.5★**▲ 57%**](https://www.amazon.com/dp/B07RZ37M5Z) [**Riare 2 Pack 24 Inch Trough Coco Coir Liners for Planters Pre-Formed Coconut Coir Replacement Liner Natural Coco Fiber Window Box Liners for Wall Planter Window Basket Deck Railing Planter**Riare**$18.15**4.6★**▲ 56%**](https://www.amazon.com/dp/B0CQ1ZJWVK) [**DONGXYTWH 2-Pack 24 Inch Coco Liners for Planters Trough Coco Liner for Window Box Fence Flower Baskets | Coco Liners for Hanging Baskets Planter Box Liner 24 Inch Coconut Liners for Planters.**DONGXYTWH**$13.54**4.2★**▲ 54%**](https://www.amazon.com/dp/B0GHMS5N9M)
**~~View all trending →~~**
## **What buyers say about window box liners**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**17%
*“Fit true to size description”*
**Quality-Overall**16%
*“Great quality and holds moisture well”*
**Plant Growth**9%
*“which is really important for healthy plants”*
**Value For Money**8%
*“Well worth the price”*
**Advertised Vs Actual Product**7%
*“As described”*
**Thickness**7%
*“Really good thickness”*
**Ease Of Use**5%
*“Easy peasy”*
**Durability**5%
*“Feels durable”*
**Strength**4%
*“The box is sturdy”*
**Material Quality**2%
*“Good material”*
### **What buyers complain about **
**Thickness**20%
*“Not as thick as I wanted”*
**Size-Overall**16%
*“They are small”*
**Quality-Overall**9%
*“Low quality”*
**Advertised Vs Actual Product**4%
*“Misleading”*
**Shape/Style**4%
*“Terrible shape”*
**Value For Money**4%
*“Too pricey”*
**Durability**3%
*“they easily came apart”*
**Material Quality**3%
*“Material is too thick”*
**Ease Of Use**3%
*“difficult to use”*
**Flatness**2%
*“Crappy came flat when you pulled it apart it was all stuck together”*
### **Top return reasons **
**Size-Overall**62%
**Advertised Vs Actual Product**8%
**Material Quality**5%
**Shape/Style**4%
**Thin**3%
**Value For Money**3%
**Thickness**3%
**Quality-Overall**2%
**Functionality-Overall**2%
**Defective Material/Parts**1%
## **Common questions**
- **Is window box liners profitable to sell on Amazon United States?**
- The niche generates $22K/yr across 73 tracked products. 2 of 16 products launched in the last 360 days are still selling. 90-day search growth is +125.1%. Flapen's verdict: Worth a look (69/100).
- **How competitive is the window box liners niche?**
- 39 brands and 50 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 45% of demand.
- **What do buyers complain about in window box liners?**
- Top complaints mined from reviews: Thickness, Size-Overall, Quality-Overall. The return rate is 1.1%.
- **When does demand for window box liners peak?**
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 18.2× the quietest.
- **What does it cost to enter the window box liners niche?**
- Listings span $8.88–$31.79; the average listing price is $18.36 (sweet spot $15–$100). The average incumbent carries 500 reviews — the moat a new listing must climb.
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