Patio Storage Compared: Deck Boxes vs Vertical Sheds
The Keter Westwood 150 Gallon Deck Box leads our ranking for its capacity, wood effect finish and genuinely dry interior. The Suncast BMS4700 vertical shed is the better answer for tall tools, while the Keter Store It Out Ultra suits bins and bikes in a narrow side return.
For cushions and general patio clutter the Keter Westwood 150 Gallon Deck Box is the unit we rank first, since it seals well and doubles as seating. Tall tools belong in the Suncast BMS4700, and the Keter Store It Out Ultra is the pick for narrow side passages.
Patio storage is harder to choose than it looks because listed gallon capacity rarely reflects what fits once you account for internal ribs, sloped lids and the space a hinge needs to open. We compared usable dimensions, weather sealing, lid support hardware, assembly time and real footprint across seven current listings, weighting toward units owners report staying dry through a full winter.
The shortlist, ranked
Keter Westwood 150 Gallon Resin Deck Box
One hundred and fifty gallons swallows a full set of cushions plus pool towels, and the overlapping lid keeps the inside dry through heavy rain. The wood grain resin looks considerably better than plain plastic on a deck. Owners report assembly takes around forty minutes and the lid stays put in wind once latched.
Pros
- Genuinely weather tight interior
- Attractive wood effect finish
- Doubles as extra patio seating
Cons
- Large footprint on small decks
- Needs two people to assemble comfortably
Suncast BMS4700 Tall Vertical Storage Shed
A vertical cabinet is the right shape for rakes, shovels, string trimmers and a leaf blower, all of which fight a horizontal deck box. Three shelves handle pots, fertiliser and hand tools. The doors can be padlocked, which none of the deck boxes here offer as standard.
Pros
- Stores long tools without leaning them
- Small ground footprint for the volume
- Lockable doors
Cons
- Should be anchored in windy locations
- Floor panel flexes under very heavy loads
Keter Store It Out Ultra Horizontal Storage Shed
Designed to sit against a wall in a side passage, this holds two wheelie bins or a couple of bikes and opens from both the front doors and the lid. That dual access is what makes it usable where a deck box would be unreachable. Assembly is the longest of the group at roughly ninety minutes.
Pros
- Fits narrow side passages
- Two ways in for awkward locations
- Holds bikes or refuse bins
Cons
- Longest assembly here
- Lid support needs care in wind
Suncast DB8000 73 Gallon Resin Deck Box
Seventy three gallons is enough for cushions from a small set, garden hand tools or pool chemicals, at a much lower outlay than the large boxes. Resin panels resist fading and the lid stays up on its own while you load. It is not the driest box here, so avoid storing anything that must stay perfectly dry.
Pros
- Good capacity for the outlay
- Quick tool free assembly
- Fits smaller balconies and decks
Cons
- Some water ingress in driving rain
- Thinner walls than premium boxes
Lifetime 60012 Horizontal Storage Shed
Lifetime uses steel reinforced high density polyethylene rather than plain resin, and the difference shows in panels that do not flex when you lean on them. The lockable doors and lid handle bikes, mowers and bulk supplies. It costs and weighs more than the resin competition, which is the trade off for the durability.
Pros
- Substantially stronger than resin rivals
- Lockable in two places
- Holds a mower or two bikes
Cons
- Heavy and awkward to reposition
- Higher outlay than deck boxes
Keter Denali 150 Gallon Resin Deck Box
The Denali offers the same 150 gallon volume as the Westwood with a stone textured finish that suits contemporary paving better than wood grain. Two hydraulic pistons hold the lid, which makes one handed loading easy. Owners report the finish shows dust more than the wood effect boxes.
Pros
- Piston lid opens with one hand
- Modern textured appearance
- Large usable interior
Cons
- Textured finish shows dust and pollen
- Not as weather tight as the Westwood
Rubbermaid Patio Chic Storage Bench Deck Box
This one is designed as seating that happens to store, with a slatted bench look and a lid rated for two adults. Capacity is modest, so treat it as a home for cushions and a few small items rather than tools. It is the easiest unit here to fit onto a balcony or a compact deck corner.
Pros
- Looks like furniture rather than storage
- Comfortable seat height
- Fits tight patio corners
Cons
- Least capacity in the ranking
- Lid seal is basic in heavy rain
What matters most
Measure the opening, not the box Listed gallon figures assume an empty rectangle, which never survives contact with internal ribs, a sloped lid and hinges that eat the rear few inches. Measure the largest item you intend to store, usually a seat cushion or a folded lounger pad, and compare it to the internal dimensions rather than the capacity number. Owners report cushion sets are the single most common thing that will not fit as expected.
Weather sealing separates good boxes from cheap ones Look for an overlapping lid lip rather than a flat lid sitting on a rim, since the lip is what sheds driving rain. Raising the box slightly on feet or a couple of treated battens stops water wicking up from a wet deck. Even the best resin box benefits from a breathable cover over cushions, because condensation forms inside sealed containers on cold nights.
Vertical versus horizontal storage Long handled tools, string trimmers and blowers waste enormous space lying down and are difficult to retrieve from a deep box. Vertical cabinets solve that with a footprint no larger than a deck box. Horizontal units win for cushions, pool floats and anything you want to sit on, so the shape should follow the contents rather than the available wall.
Anchoring, security and placement Empty resin storage is light enough to move in a strong gust, so anchor tall units to a wall or fill the base with something heavy. Padlockable models deter casual theft but none of these are secure against determined entry, so keep genuinely valuable tools indoors. Placing units against a wall out of standing water extends their life considerably.
How they compare
| # | Model | Capacity | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | Keter Westwood 150 Gallon Resin Deck Box | 150 gallons | Best overall | 9.4 | Check price |
| 2 | Suncast BMS4700 Tall Vertical Storage Shed | About 70 cubic feet | Best for long handled tools | 9.2 | Check price |
| 3 | Keter Store It Out Ultra Horizontal Storage Shed | About 1200 litres | Best for narrow spaces | 9.0 | Check price |
| 4 | Suncast DB8000 73 Gallon Resin Deck Box | 73 gallons | Best value | 8.8 | Check price |
| 5 | Lifetime 60012 Horizontal Storage Shed | About 75 cubic feet | Best build quality | 8.6 | Check price |
| 6 | Keter Denali 150 Gallon Resin Deck Box | 150 gallons | Best for modern patios | 8.3 | Check price |
| 7 | Rubbermaid Patio Chic Storage Bench Deck Box | About 90 gallons | Best for small patios | 8.0 | Check price |
Frequently asked questions
Is patio storage genuinely waterproof?
Water resistant is the honest description. Good boxes with overlapping lids stay dry through normal rain, but driving rain and long wet spells can let moisture in around seams, so avoid storing anything that must stay perfectly dry.
How big a deck box do I need for cushions?
A full set of cushions from a six seat dining set generally needs 120 gallons or more. A two seat bistro set fits comfortably in a 70 to 90 gallon box.
Can I leave a resin deck box out all winter?
Yes, resin units are designed for year round outdoor use. In snowy regions clear heavy snow off the lid, since sustained weight can bow it, and keep the box slightly raised off standing water.
Do deck boxes need assembly?
Almost all of them do, typically thirty to ninety minutes with panels that click or bolt together. Two people make it noticeably easier and reduce the chance of misaligning a panel.
Will mould grow inside a deck box?
It can if damp items go in and cannot dry. Store cushions dry, leave the lid ajar on sunny days occasionally, and add a moisture absorber in humid climates.
Can I sit on any deck box?
Only on models with a stated seat rating and reinforced lid. Sitting on a box that is not rated for it will bow or crack the lid over time.
How do I stop a storage box blowing over?
Anchor tall vertical units to a wall or fence, or weight the base with paving slabs or heavy stored items. Most horizontal boxes stay put once loaded.
What is the best place to put patio storage?
Against a wall, out of the lowest point of the patio where water collects, and where the lid or doors can fully open. Shade reduces UV fading and keeps contents cooler.
Our take
The Keter Westwood 150 Gallon Deck Box takes our top spot for the combination of real capacity, a lid that actually keeps rain out and a finish that looks intentional on a deck. Anyone storing rakes, trimmers and long handled tools should choose the Suncast BMS4700 instead, since shape matters more than volume there. For narrow side passages, the Keter Store It Out Ultra is the only unit here that fits comfortably.
