300 gallon outdoor storage box
Worth a lookShows demand growing +175.2% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Growth
Incredible+175.2%90-day search growth — must beat 0% to launch
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Brand share
Great59%top-5 brand share — no brand owns this niche
Competition
Good41%top-5 click share — leaders hold, buyers still browse
Review moat
Good1,163.79avg incumbent reviews — the moat a new listing must climb
Avg price
Okay$203.44avg listing price — sweet spot $15–$100
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Market size
Bad$94K$94K/yr · 20K searches
Price range
Bad$129.26–$268.59cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 300 gallon outdoor storage box is a $94K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 63/100.
Data updated Jul 16, 2026 · scored weekly · How we score niches
300 gallon outdoor storage box market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $51K–$102K
- units × avg price
- Conversion rate
- 2.4%
- Avg BSR
- #79
- Page quality
- 0%
- Prime
- 53%
- Sponsored
- 86%
- Out of stock
- 4.4%
- Avg brand age
- 25 months
- Avg seller age
- 187 days
Competition & brand share
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.Brands
23 falling
Sellers
36
Top-5 brand share
59%
Top 20: 98%
Top-5 click share
41%
Top 20: 74%
Open market
35%
- TARKARI18%
- YITAHOME14%
- KFY10%
- MAIUSCOLI9%
- Greesum8%
- DWVO7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +175.2% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 3.6×
Top 300 gallon outdoor storage box search terms
- 260 gallon outdoor storage box5K/yr
- 300 gallon outdoor storage box4K/yr
- 180 gallon deck box5K/yr
- 260 gallon deck box6K/yr
Top 300 gallon outdoor storage box 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
TARKARI 320 Gallon Lockable Resin Deck Box Waterproof & UV-Resistant Outdoor Storage Box for Outdoor Cushion Storage Garden Tools & Pool Accessories Storage Black
TARKARI$255.364.3★1,004 rev
MAIUSCOLI 260 Gallon Outdoor Deck Box Lockable Waterproof Outdoor Storage Boxes For Garden Tools Indoor Cushions Accessories Outside Storage Resin Weatherproof Container(Black)
MAIUSCOLI$221.274.4★1,785 rev
KFY 320 Gallon Waterproof Outdoor Storage Box UV Resistant Resin Deck Box with Hydraulic Rod for Reinforced Stability Perfect for Patio Garden and PoolBlack320 Gallon
KFY$248.224.3★454 rev
Greesum 260 Gallon HDPE Outdoor Storage Box - Waterproof Large Capacity Deck Box with Removable Dividers for Patio Yard Garden Tools Black
Greesum$253.214.5★2,994 rev
DRATO 180 Gallon Outdoor Storage Box Large Waterproof Deck Box Lockable Resin Storage Container with Reinforced Support for Patio Cushions Garden Tools UV-Resistant Outdoor ChestBlack180 Gallon
DRATO$132.174.4★805 rev
Newest
by launch date
ComeWay 260 Gallon Deck Box Waterproof Resin Outdoor Storage Box with Lockable Lid Patio Storage Box with Fade Resistant for Patio Furniture Cushions Pool Accessories Garden Tools Light Coffee
ComeWay$166.3783 rev
YITAHOME XXL 300 Gallon Extra Large Outdoor Deck Box Lockable Resin Double-Wall Storage Box and Waterproof Patio Furniture Bin for Garden Tools & Pool Accessories Brown
YITAHOME$235.95198 rev
EFU Outdoor Storage Box 280 Gallon Deck Box (Indoor & Outdoor) Lockable UV Resistance Waterproof Resin Storage Bin Storage Box for Outdoor Patio Storage With Support Rod(Black)
EFU$209.4967 rev
YITAHOME XXL 240 Gallon Extra Large Deck Box Waterproof Resin Outdoor Storage Box with Lock and 3-Person Bench Seating for Patio Furniture Cushions Garden Tools & Pool Accessories Dark Brown
YITAHOME$166.3255 rev
YITAHOME 240 Gallon Large Outdoor Storage Box XXL Resin Deck Box with Lock Extra-Large Waterproof Patio Furniture Bin and 3-Person Bench Seating for Garden Tools & Pool Accessories Black
YITAHOME$164.9630 rev
Trending
90-day click momentum
DWVO 320 Gallon Resin Outdoor Storage Box XXL Large Waterproof Deck Box Doubles as Table or Seating with 1000 lbs Capacity Lockable (Black)
DWVO$233.534.4★
ComeWay 260 Gallon Deck Box Waterproof Resin Outdoor Storage Box with Lockable Lid Patio Storage Box with Fade Resistant for Patio Furniture Cushions Pool Accessories Garden Tools Light Coffee
ComeWay$166.374.5★
YITAHOME XXL 300 Gallon Extra Large Outdoor Deck Box Lockable Resin Double-Wall Storage Box and Waterproof Patio Furniture Bin for Garden Tools & Pool Accessories Brown
YITAHOME$235.954.0★
YITAHOME 240 Gallon Large Outdoor Storage Box XXL Resin Deck Box with Lock Extra-Large Waterproof Patio Furniture Bin and 3-Person Bench Seating for Garden Tools & Pool Accessories Black
YITAHOME$164.962.3★
EFU Outdoor Storage Box 280 Gallon Deck Box (Indoor & Outdoor) Lockable UV Resistance Waterproof Resin Storage Bin Storage Box for Outdoor Patio Storage With Support Rod(Black)
EFU$209.494.6★
What buyers say about 300 gallon outdoor storage box
What buyers praise and complain about, mined from review topics.What buyers love
“Assembly was easy”
“Lots of space”
“is good quality as well as roomy”
“Sturdy with actual metal in construction”
“size is great”
“Good price”
“Very durable”
“definitely waterproof”
“Clear instructions”
“As advertised”
What buyers complain about
“a bit flimsy”
“Partially assembled very poorly”
“NOT WATERPROOF”
“I expected this to be higher quality”
“Not Durable”
“Instructions are horrible”
“This box is too small”
“Leaks like a sieve”
“Not worth the price”
“Terrible co structuring”
Top return reasons
Common questions
- Is 300 gallon outdoor storage box profitable to sell on Amazon United States?
- The niche generates $94K/yr across 43 tracked products. 13 of 19 products launched in the last 360 days are still selling. 90-day search growth is +175.2%. Flapen's verdict: Worth a look (63/100).
- How competitive is the 300 gallon outdoor storage box niche?
- 23 brands and 36 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 59% of demand.
- What do buyers complain about in 300 gallon outdoor storage box?
- Top complaints mined from reviews: Strength, Assembly/Installation, Water Resistance. The return rate is 0.8%.
- When does demand for 300 gallon outdoor storage box peak?
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 3.6× the quietest.
- What does it cost to enter the 300 gallon outdoor storage box niche?
- Listings span $129.26–$268.59; the average listing price is $203.44 (sweet spot $15–$100). The average incumbent carries 1,164 reviews — the moat a new listing must climb.