window box liners
Worth a lookShows demand growing +125.1% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Growth
Incredible+125.1%90-day search growth — must beat 0% to launch
Returns
Great1.1%return rate — above 5% kills the launch gate
Brand share
Great45%top-5 brand share — no brand owns this niche
Competition
Great26%top-5 click share — an open shelf
Avg price
Great$18.36avg listing price — sweet spot $15–$100
Review moat
Good500.37avg incumbent reviews — the moat a new listing must climb
Price range
Good$8.88–$31.79cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Conversion
Okay2.7%search→purchase rate — share of searches ending in a sale
Market size
Bad$22K$22K/yr · 43K searches
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
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.Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 18.2×
Top window box liners search terms
- window box liners20K/yr
- planter box liner19K/yr
- liner for planter box4K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Wshxjzyay 63 * 83 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained
Wshxjzyay$19.354.4★95 rev
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$15.604.2★250 rev
Wshxjzyay 63 * 114 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained
Wshxjzyay$20.204.4★95 rev
HHTHH 2pcs Trough Coco Liner 36 inch Wall Planter Replaceable Coco Liner for Window Box Fence Flower Baskets
HHTHH$22.464.3★1,763 rev
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$15.824.3★720 rev
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$15.8210 rev
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$20.3630 rev
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$13.5461 rev
Wshxjzyay 63 * 83 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained
Wshxjzyay$19.3595 rev
Wshxjzyay 63 * 114 inch Raised Garden Bed Liner Non Woven Fabric Liner for Large Veg Trough Keeps Soil Contained and Water Drained
Wshxjzyay$20.2095 rev
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$14.244.1★
XXINGEM 3Pcs Pre-Formed Coco Fiber Liners for Planters Window Boxes & Fence Flower Baskets Replacement (24in)
XXINGEM$20.563.9★
HFHOME 2Pcs 24 Trough Coco Fiber Replacement Liner 24 inch Window Deck Coco Replacement Liners for Window Box
HFHOME$14.784.5★
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$18.154.6★
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$13.544.2★
What buyers say about window box liners
What buyers praise and complain about, mined from review topics.What buyers love
“Fit true to size description”
“Great quality and holds moisture well”
“which is really important for healthy plants”
“Well worth the price”
“As described”
“Really good thickness”
“Easy peasy”
“Feels durable”
“The box is sturdy”
“Good material”
What buyers complain about
“Not as thick as I wanted”
“They are small”
“Low quality”
“Misleading”
“Terrible shape”
“Too pricey”
“they easily came apart”
“Material is too thick”
“difficult to use”
“Crappy came flat when you pulled it apart it was all stuck together”
Top return reasons
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.