Having the best waterproof outdoor storage can help you free up some garage storage space. With these sheds or deck boxes, you can keep small items you do not use often, neatly packed away.
Here, you can find a wide selection of these storages available in different shapes, designs, and sizes. Therefore, if you need some added storage space to keep your garden tools or patio accessories, browse through the collection available here.
So keep reading on how to select the best outdoor storage for your needs today—with our helpful buying guide at the end.
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Best Waterproof Outdoor Storage Reviews:
10. Rubbermaid Horizontal Storage Shed
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For additional storage space to keep garden tools, patio accessories, and pool toys, it helps to have this waterproof outdoor storage box.
The deck box has double walls with a horizontal design with up to 25 cubic feet of space. The weather-resistant structure keeps the shack durable to last longer.
Therefore, if you need hassle-free storage, make sure to check this one out with an impact-resistant floor. Furthermore, it accommodates a wooden shelf you can buy separately.
Moreover, you can place it anywhere in the garden and on the deck or patio.
Waterproof Outdoor Storage at a glance:
- Has a horizontal plastic design to place anywhere
- Accommodates a wood shelf sold separately
- Double-walled construction with impact-resistant floor
- The external dimension is 34 by 55 by 28-inches
- The internal size of 29 by 47 by 21-inches
- Storage capacity 18 cubic feet
- Customizable to suit your daily needs with seven-piece assembly
What we like:
- An excellent and durable item for the price
- Individual plastic pieces are not heavy
- Mounts on a sturdy structure
- Sealed well
What we do not like:
- Limited Stock
- Needs two people to put together and move
9. Rubbermaid FG5E3900OLVSS Extra Large Deck Box
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With the extra-large deck box from Rubbermaid, you can relax outdoors with an uncluttered view. You can place it on your patio, in the garden, or on the deck.
You can store your patio accessories, garden tools, work tools, or toys to keep things clutter-free in the home and garage. The sandstone design with olive steel panels blends in with any venue and has a hinged lid for access.
Furthermore, the storage box offers you a maintenance-free use, as it is resistant to cold temperatures as well. Not only does it provide added storage space, but it also seats up to two to three people as well.
Waterproof Outdoor Storage at a glance:
- Durable deck box with extra-large design
- Comfortable for two people to sit on
- Offers 18 cubic feet of storage
- Double-wall construction
- Hinged lid for easy access
- Made with hard-wearing plastic with low maintenance
What we like:
- Value for money
- Has a sturdy platform
- Hinged lids for access
- Ample storage space
- Can use it for extra seating
- Low maintenance
What we do not like:
- Limited Stock
- Has some sharp edges that cut you
8. SUNCAST Vertical Utility Shed
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Now, if you do not have a place to use a deck box, it helps to have this vertical utility shed from SUNCAST. The tall shack offers you up to 20 cubic feet of storage.
There are double doors for accessing your tools, patio accessories, and more. You get a double-walled resin shed that is easy to clean with low maintenance.
Furthermore, it has a feather lightweight of 65 pounds without equipment inside, making it easy to move where you need it. The wood grain texture gives an earthy tone to fit in with your décor outside.
Waterproof Outdoor Storage at a glance:
- Offers 20 cubic feet of storage for garden tools and more
- Resin design for low maintenance and easy to clean
- Has an all-weather structure and UV protection
- Double doors with padlock hasp
What we like:
- Available in two sizes
- Ample storage space
- Durable design
- Easy to put together but will need more than one pair of hands
What we do not like:
- Limited Stock
- Not fully watertight
7. Keter High Store Vertical Outdoor Resin Shed
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The vertical waterproof outdoor storage shed has a small footprint to use in outdoor spaces. The shack has a durable polypropylene resin construction offering you low maintenance.
Furthermore, you get two adjustable brackets that can support two shelves sold separately for keeping smaller items organized. The exterior dimension is 54.9-inches in length with a width of 30.3-inches and stands 71.5-inches tall.
Moreover, the walls are customizable to drill holes, and you can paint it in your preferred color as well.
Waterproof Outdoor Storage at a glance:
- Made with polypropylene resin structure
- You get two adjustable brackets that support two shelves sold separately
- The wall panels are rib-reinforced
- The floor weight hold is 30 PSF, and the roof weight is 15 PSF
- The exterior dimension is 54.9-inches (L) x 30.3-inches (W) x 71.5-inches (H)
- The interior dimension is 50.5-inches (L) x 27.2-inches (W) x 69.5-inches (H)
- You get double doors with customizable walls and lockable
- Easy to assemble with the pre-cut panels
What we like:
- Assembles easily
- Nice quality
- Works well
- Customizable
What we do not like:
- Limited Stock
- The locking mechanism could be a bit stronger
6. SUNCAST Tremont Storage Shed with Windows
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Do you have a problem with storage space? We have a solution for you with this large eight foot by seven foot shed. The capacity is up to 378 cubic feet and has double doors with windows available.
The blow-molded resin offers a durable and maintenance-free solution to keep large items stored. The polypropylene construction makes cleaning the exterior easier.
You also get four skylights for navigating through the shed quickly during the daytime and come with two corner shelves, and a floor included.
Waterproof Outdoor Storage at a glance:
- Made with multi-wall panels with easy assembly
- Designed with a reinforced floor with four skylights for natural lighting
- Double doors that you can lock
- Fitted with windows
- Water-resistant design with UV protection
- Constructed with blow-molded resin
- Offers up to 378 cubic feet of storage space
- Comes with two corner shelves
What we like:
- Good price
- Sturdy and durable design
- Holds up well even in the snow without leaks
What we do not like:
- Limited Stock
- Needs site preparation and construction on the foundation and you do not get the material included
5. Lifetime 130 Gallon Desert Sand Deck Box
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Do you need space to keep your patio accessories on hand? Then you may be interested in this deck box from Lifetime. You get a durable storage box you can leave outdoors with the HDPE construction.
You can use it as an extra seating space as well, and the item is UV protected with a weather-resistant seal to keep the interior dry. The spring hinge lids offer ease of use and will not slam down.
Furthermore, the lid you can lock to keep items secure and safe as well while the molded handles allow you to move it to the desired location.
Waterproof Outdoor Storage at a glance:
- Made with HDPE (High-Density Polyethylene) construction
- Double-wall design with weather-resistant steel hinges
- Has a spring-hinged lid that will not slam shut when closing
- Fitted with seals to keep the interior dry
- Molded handles for moving
- Lockable lid and UV protected
- Can use it as a bench as well
What we like:
- Easy to assemble
- Huge storage space
- Easy to follow the instruction with diagrams
- Reasonable price
- Provides extra seating
What we do not like:
- Limited Stock
4. KETER BRIGHTWOOD Large 120 Gallon Deck Box
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As with the majority of the waterproof outdoor storage items reviewed, this deck box also has a polypropylene structure. Therefore, you can leave it standing on the porch, by the pool, patio, or on the deck without concern of items getting wet.
The exterior has UV protection to prevent fading and offers low maintenance use. You get decorative wood storage to complement the natural surroundings you place it in as well.
The storage capacity of 120 gallons is large enough for small items from pool toys, patio accessories, and more. You can even use it in your bedroom or place it on the patio for added seating space.
Furthermore, the lid locks to prevent theft when it stands outside, keeping your valuable secure.
Waterproof Outdoor Storage at a glance:
- Exterior dimension of 57 (L) x 27.5 (W) x 23.7 (H) inches
- Interior dimension of 54.5 (L) x 23.5 (W) x 21.7 (H) inches
- The storage capacity of 120 gallons suitable for toys, pool, and garden supplies
- Made with resin structure and weather/UV treated
- Decorative wood design with hydraulic piston lid
- Lockable lid and the top section provides added seating to use as a bench
- Available in different color options
What we like:
- Durable design
- Easy to assemble
- Holds up well outdoors
- Ample storage space
- Added seating
What we do not like:
- Limited Stock
3. KETER CIRCA Round Deck Box
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Here is another exceptional weatherproof outdoor storage solution from KETER. The circa has a round design to provide added storage on the patio, deck, or porch.
You can use the deck box as a patio table as well placed between two deck chairs. The natural wood grain look blends in with your outdoor décor while offering versatility.
The storage box offers a 37-gallon storage capacity made with a durable structure to hold up to 308lbs of weight. There are handles for mobility and lightweight enough to move as needed.
Furthermore, it has UV and waterproof protection to keep items dry on the inside.
Waterproof Outdoor Storage at a glance:
- Offers 37-gallons of storage space and holds up to 308lbs of weight
- Designed with handles for moving easily
- UV and weather protected to leave standing outside
- The external dimension of 26-inches in diameter with a height of 16-inches
- The internal size of 23-inches in diameter with a height of 15.7-inches
- Made with resin structure with a wood-look texture
- Provides added seating, storage, and you can use it as a table
What we like:
- Easy to assemble without extra tools
- Reasonable price
- Durable design and sturdy
- Doubles up as a table or seat
What we do not like:
- Limited Stock
- No locking lid and the top lid portion does not sit flat with the inside
2. Rubbermaid Roughneck Extra Large Deck Box
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Here we have another waterproof outdoor storage deck box from Rubbermaid with an extra-large design. You get up to 16 cubic feet of storage and ideal for keeping outdoor supplies secure and dry.
There are interlocking panels for assembly and have a double-wall structure to protect belongings. The exterior dimension measures 25.7-inches in length with a width of 60-inches and stands 27.5-inches tall.
With the spacious design, you can use it for added seating spaces as well. The lid comes with lockable mechanisms to keep items securely locked when standing outside.
Waterproof Outdoor Storage at a glance:
- Offers up to 16.2 cubic feet of storage for patio accessories and more
- Exterior dimension of 25.7-inches in length by 60-inches wide with a height of 27.5-inches
- Interior dimension of 21-inches in diameter by 56.5-inches wide with a height of 22.5-inches
- Seats up to two people and supports a weight of 300lobs
- Made with double-wall structure with lockable lid
What we like:
- Sturdy design
- Takes up little floor space
- Can use it for seating two people
- Lockable lid
What we do not like:
- Limited Stock
- Pieces could fit together a bit better
1. SUNCAST Medium Deck Box with 50-Gallon Capacity
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Do you need added storage and seating available on the porch or patio? We have a solution for you with this gorgeous deck box from SUNCAST.
The storage box holds a capacity of 50-gallons and takes up little space. Furthermore, you can use it for added seating as well. You can use it stowed away on the patio or deck for grill accessories and more.
With the waterproof body and UV protection, it will not fade and keep valuable items safe at the same time. Not only will you be able to use this storage box outside but can use it inside the home as well.
Waterproof Outdoor Storage at a glance:
- Designed as a deck storage box with 50-gallon capacity
- Durable polyresin body with weatherproof structure and UV protected
- Versatile to use indoors and outdoors
- Hinged lid for opening with a dimension of 21 by 41 by 23-inches
- Provides extra seating on the patio, alongside the pool, or deck
- Five-year Warranty
What we like:
- Well written instruction sheet
- Pieces snap together and need no tools
- Good price
- Solid design
- The shelf life of up to five years
What we do not like:
- Limited Stock
Waterproof Outdoor Storage Buying Guide
All of the waterproof outdoor storage items included on the list offer you durability, ease of use, added storage space, and worth buying. With this all in mind, which one is the best storage solution for your lifestyle and needs? Find out here with some helpful tips to get you started.
The Size
First, determine how much storage space you need and how much room you have available. To get the best storage solution, it all comes down to if you need a deck box or a shed standing outside. A storage box is an excellent option if you have limited space and want to keep smaller items stored. At the same time, a shed is perfect for keeping more important things packed away, leaving the garage and home clutter-free.
How secure is the waterproof outdoor storage to assemble?
As you will be ordering your storage product online, you will need to assemble it on arrival. Therefore, read the feedback of customers and make sure you do not need added tools to set it up. Buying a deck box offers you a simple solution as the panels snap together and require no additional preparation compared to assembling a shed.
How durable is the outdoor storage?
As your storage shed or box stands outside, it will be in contact with different elements. You want a durable and all-weather storage solution with low maintenance to keep the shed or box lasting long. Look at the construction and what material the manufacturer used to construct the product.
Do you need portability?
If you answered yes, then it helps to invest in a deck box instead of a storage shed. With a portable design, you can take the box anywhere with you when needed. Furthermore, look at how the lid opens and if it has a lockable design as well to keep items secure as well.
Do you need versatility?
With a waterproof outdoor storage shed, you do not get that much versatility as it stands in one place. You can fill it up with more items compared to a deck box. However, if you do want to place it on the patio or in the home, the deck box is a versatile product to use. You can use it as a table or added seating place.
Final Thoughts
Once you follow the buying guide tips above, we hope it helps you to find a waterproof outdoor storage solution offering you value for your money spent.
Each of the outdoor storage boxes and sheds reviewed offers long-lasting use to keep your garage or home clutter-free. When selecting the best storage shed or container, it all comes down to what you need.
Make sure you have the space available when selecting storage shed and take into consideration that you will need to do site preparation.
Furthermore, you will need to do the construction of the foundation as well, and most of the time, the material does not come with a purchase.