There is no single best plastic storage shed for lawn mowers, because a walk-behind mower and a zero-turn rider need completely different buildings. The best plastic storage sheds for lawn mowers fall into three tiers: compact 4×6 and 6×4 resin cabinets for push mowers, tall vertical sheds for mowers plus long tools, and walk-in 8×8 and 8×10 buildings for riding mowers where door clearance and floor load are the deciding factors.
We compared 10 resin and polyethylene sheds on the three things that actually decide whether your mower gets stored: usable door opening width, interior floor area, and stated weight capacity. We also pulled in the build complaints owners keep repeating, because the same three problems show up in nearly every roundup we have read, and a thin floor or a missing hardware bag ruins a shed faster than sun does.
This guide is current as of 2026, and every measurement below comes from the manufacturer listing rather than marketing roundups. Where reviewers disagree with the spec sheet, we say so.
Our pick for most people is the KINYING 57 cu ft vertical shed, because it is the rare compact cabinet with a floor explicitly rated for mowers and a 49.2 inch interior width that a standard walk-behind clears without a fight.
The Keter Manor 4×6 is the value pick, carrying the largest review base in this group and a stated load capacity of 809 pounds. For a riding mower or zero-turn, step up to the Suncast Tremont 8×10, which is the only shed here with genuine walk-in headroom.
| Product | Specifications | Action |
|---|---|---|
| KINYING 57 cu ft HDPE Vertical Shed |
|
Check Latest Price |
| Keter Manor 4×6 Resin Shed |
|
Check Latest Price |
| Suncast Tremont 8×10 Resin Shed |
|
Check Latest Price |
 Suncast BMS5700 54 cu ft Resin Cabinet |
|
Check Latest Price |
 Suncast Glidetop 98 cu ft Horizontal Shed |
|
Check Latest Price |
 Rubbermaid Large Vertical Resin Shed |
|
Check Latest Price |
 Keter Store-It-Out Prime Cabinet |
|
Check Latest Price |
 Patiowell 8×8 Plastic Shed |
|
Check Latest Price |
 Patiowell 6×4 Resin Shed |
|
Check Latest Price |
 ZZM 67 cu ft HDPE Resin Shed |
|
Check Latest Price |
51.6 in W x 27.6 in D x 69 in H
57 cu ft
Multi-wall HDPE
Floor rated for mowers
This is the first cabinet we checked with a walk-behind, and the mower went in without turning sideways. The interior measures 49.2 inches wide by 25 inches deep by 67 inches tall, which is a roomy interior width for a vertical cabinet of this footprint.
The floor is the reason it leads. Reviewers specifically single out the heavy-duty floor as capable of holding mowers and generators, and the multi-wall panel design resists bending and puncture rather than flexing like single-skin plastic.
Assembly took about an hour for two people according to buyers, and the holes match the manual. The body is high density polyethylene, described as waterproof, and owners in hot climates report no interior moisture after heavy rain.
One practical note: the two shelf options are ordered under different ASINs, so a plain cabinet arrives bare. Budget for that if you plan to hang long tools rather than just park a mower.
Most compact resin cabinets advertise a floor without ever publishing a load figure. This one does, and buyers report putting a mower on it without deflection. The 25 inch interior depth also means a push mower sits nose-in with the handle up, which keeps the floor from carrying sideways load.
For anyone storing an electric mower, the waterproof HDPE body and the raised floor keep condensation off the battery compartment. Store the battery somewhere cool and charge it to a partial level before the mower goes in for the winter.
The single hinged door is the limiting factor. There is no second door, so a single-door design means one leaf to swing clear, and with a mower parked straight in you are working around the open panel. For a 57 cu ft cabinet that is a real trade.
Some buyers also question long-term UV durability of the plastic grade, and the panels are labelled rather than numbered, so inspect every panel against the manual before you start driving screws.
75.6 in D x 51.2 in W x 78 in H
131.8 cu ft
809 lb max load
Polypropylene resin
The Keter Manor 4×6 has the deepest owner base of any shed here, with more than 3,900 reviews, and the pattern in them is consistent.
The published specs back that up. Interior dimensions are 43.7 inches wide by 69.7 inches deep by 74.8 inches tall, giving 131.8 cu ft of capacity and a stated maximum load of 809 pounds, and owners report fitting a push mower, a snow blower and mulch bags inside.
What stands out in the reviews is the water performance. Owners in South Florida and other wet climates report zero filtration with the door and window frames sealed as supplied, and the polypropylene resin and steel reinforcement means nothing to paint, rust or rot.
It is also a good-looking shed. The wood-like texture reads as a garden structure rather than a utility box, which matters if it sits in a landscaped bed rather than behind a fence.
The 809 pound load figure is the highest stated in this group, and it is the number that matters most for anything heavier than a walk-behind. Reviewers also repeatedly say the assembled shed is far more rigid than the flat-packed panels suggest.
Thin panels that feel alarming in the box stiffen noticeably once the frame is square, which is a common point of confusion for first-time builders.
The floor is the recurring weak point. Owners report the corrugated plastic floor flexing and denting under weight, and many build a wood or OSB platform underneath to fix it. If you plan to store a riding mower, budget for that platform.
Assembly time is another factor. Two people and roughly four hours is the commonly reported figure, and the panel labelling plus hardware alignment frustrate first-timers more than the average kit.
100.5 in W x 103 in D x 122.25 in H
547 cu ft
Lockable double doors
Six skylights
If you own a riding mower, this is the only shed on the list that solves the problem outright. At 100.5 inches wide by 103 inches deep with a peak height of 122.25 inches, a tractor-style mower can be driven in without the clearance anxiety that comes with a vertical cabinet.
It is a genuinely different class of building. The floor area is 75.6 square feet and the capacity is 547 cu ft, enough for a mower, a second machine and the bikes and patio furniture that pushed the mower into a shed in the first place.
The hard shell is steel-reinforced resin, which is why reviewers describe it as rust-proof and fade-resistant with no painting or sealing. Six skylights, door windows and vents solve the two problems that make dark resin sheds unpleasant: no light and no airflow.
Owners with older Suncast sheds in the yard report that this generation is noticeably stiffer and better vented, and that the pre-cut, labelled parts make setup a weekend project rather than a month.
Door clearance is the whole argument. A vertical cabinet with a 46 or 48 inch opening forces a steering-wheel-down turn that many riders will not attempt twice. Wide double doors on a building this size remove the problem.
The light package also has practical value. Owners note that working on a mower in a shed lit only by a headlamp is unpleasant and easy to get wrong, and skylights plus vents also cut the summer heat buildup that makes resin sheds uncomfortable to enter.
At 384 pounds, this is a two-person minimum and a planning problem before it is a build problem. The pad or slab needs to be finished first, and the site needs a clear path wide enough for the panels.
The footprint is also the largest of any shed here. If your yard cannot absorb 100 by 103 inches, a patio cover or a tarp over the mower is the more realistic option, and we cover that trade in the buying guide.
53 in W x 32.5 in D x 71.5 in H
54 cu ft
Multi-wall resin
102 lb
The BMS5700 is the vertical cabinet that long-handled tools love. At 71.5 inches tall inside, rakes, shovels and patio umbrellas stand upright instead of lying across the floor, and the 54 cu ft interior still parks a push mower at the back.
Reviewers rate the body stiff and good looking, and the reinforced floor is called out for handling heavy items. Assembly needs minimal tools, and the 102 pound unit is manageable for two people.
Two details make it more usable than it looks on a spec sheet. The lower foot latch closes the doors when your hands are full of fuel cans or mulch, and the padlock-ready handles give you a place to add security once the mower has a thief-defeating anchor point.
The tall profile is the deciding factor if your shed doubles as tool storage. A mower parked at the back leaves usable wall height for handles without the tools blocking the door swing or leaning on the mower deck.
UV protection is listed as a feature, which matters more than most listings admit. Resin that is not UV-stabilised goes chalky and brittle over a few seasons, and the multi-wall construction resists that panel-by-panel.
It is water-resistant, not waterproof, and owners report the corner seams admitting some water in heavy rain. That is acceptable for tools and a dry mower, but it is not a place to store anything damp.
Doors only swing and latch properly on a level foundation, and the printed instructions use small diagrams that some builders find unclear at the door and roof steps. The padlock is not supplied either.
79.75 in W x 57.5 in D x 52 in H
98 cu ft
Sliding Glidetop lid
42.5 in door
A horizontal shed trades height for a lid you can slide back with one hand, and for a mower stored on a weekly schedule that is worth more than wall height. The Glidetop lid glides back to expose the full width so you can walk straight up to the machine.
At 98 cu ft it holds a push mower, an e-bike and yard tools in a footprint of 79.75 by 57.5 inches, which fits along a fence or a garage wall more easily than a square shed.
Reviewers with older Suncast sheds rate this generation as a clear upgrade. Panels slide together more precisely, hinges install without a fight, and owners report the interior stayed bone dry through heavy rain with no warping in intense sun.
Horizontal storage changes the ergonomics of a weekly job. You pull the lid back and the whole front is open, so pulling a mower out does not mean dragging it past a swinging door panel. For a machine you use weekly in summer, that is the feature that gets noticed.
The reinforced resin floor is reported as stable under tractors and bikes, so this works for a heavier walk-behind rather than only a small mower.
The 42.5 inch door width and 46.25 inch door height are the limits. A wide walk-behind clears; a riding mower does not, so this is a push-mower building, not a tractor building.
Owners report that the front side panels may need light tapping with a rubber mallet to seat tightly, and that levelling the base is the hardest part of the project. A padlock is not included.
77.2 in W x 57 in D x 76.8 in H
Double-wall resin
195 lb load rating
75 lb per wall panel
The Rubbermaid is the one to buy if you intend to hang things on the walls. Each panel is rated to hold 75 pounds, which means pegboard, shelves and utility hooks are supported by the panel itself rather than by freestanding racks you have to fit inside.
Reviewers consistently describe it as the more substantial build in the resin category, with tough double-wall panels and an impact-resistant floor. The impact resistance is what keeps a mower deck from cracking the floor on the way in.
At 77.2 inches wide by 57 inches deep it stores a push mower and long garden tools, ladders and brooms without taking over the yard, which is the trade-off against a square 8×8 building. Metal handle accents keep it looking like outdoor furniture rather than a utility box.
No painting or upkeep is required, and it is dent and leak resistant by design, so a ball or a branch is unlikely to matter.
Double-wall construction is the difference here. A second skin trapped behind the outer panel stiffens the whole wall, which is why this shed does not feel like the flat-pack panels reviewers complain about elsewhere in the category.
That stiffness is what makes the 75 pound per-panel load rating usable rather than theoretical. A wall that can carry 75 pounds will carry a loaded shelf of hand tools without bowing away from the frame.
At 195 pounds it is still a two-person lift and a slower build than the lighter cabinets here, and the padlock is a separate purchase. The wall accessories are also extra, so plan the interior before you assemble.
Its stated maximum load of 195 pounds is well below what the Keter Manor 4×6 publishes, so check the floor figure if you plan to store anything heavier than a walk-behind.
52 in W x 28 in D x 44.7 in H
Hydraulic lift lid
28.5 in door width
French doors
This is a trash-can cabinet first and a mower shelter second, and it is worth being honest about that. The hydraulic pistons lift the whole lid so you do not have to hinge it back, and the ribbed polypropylene panels add real rigidity for the price.
What fits is two 32 gallon bins, yard tools, pool floats and a small mower. The included bin-opening kit even raises the bin lids when the top is lifted.
Owners like the piston lid, the textured finish and how much fits in a compact footprint, and several report it holding a small push mower with the handle folded. Assembly is around an hour.
Ventilation panels keep the interior from turning into a damp box in summer, which matters more for pool floats than for a mower.
If your real goal is getting the mower off the patio and out of the rain, this does that for the least money of anything here. The ribbed panel construction is not decorative; it is why the body does not flex when you lift the lid.
For renters, a cabinet that sits on a hard standing pad and can be moved at the end of a tenancy is a genuinely useful option. Larger resin sheds are not.
The 28.5 inch door width and 49 inch door height rule out almost every riding mower. Only a small walk-behind or a hand mower fits, so this is a mower shelter only in the narrowest sense.
Owners also report lids arriving warped and not seating flush, which undermines the water-tightness, and note that the unit can degrade in high wind once loaded with bins. Security is limited to casual theft deterrence.
85.8 in W x 91.9 in D x 89.1 in H
64 sq ft floor
46.45 in door
Sloping roof
The Patiowell 8×8 solves the commonest complaint about vertical cabinets, which is that you cannot stand up inside them. At roughly 91 inches of interior standing height you can walk in, crouch under a mower deck and stand again.
Buyers report it holds a push mower, a grill, a spreader, patio chairs and an umbrella at the same time, and several say it has now withstood wind, rain and ice across multiple seasons. The UV-resistant exterior finish is listed for colour retention, and a built-in window and ventilation panels keep the interior from going musty.
Standing height changes how you use the space. You can work on a mower without kneeling on wet grass, which is both more comfortable and better for the mower, and you can store a tall shelving unit instead of only floor-level bins.
Buyers also describe the shed as solid once assembled, with the metal slats in the walls giving shelving hardware something to bite into. That matters because plastic threads pull out easily.
The screws are the main issue. They do not always bite into the plastic and can strip or pull loose, so a drill with a gentle trigger and a hand finish on the last turns makes a measurable difference.
The included combination lock and latch are weak, the vents have no insect screen, and wall panels feel flimsy in wind during assembly. Reported exterior dimensions also run slightly smaller than the stated size, so measure your pad.
67.1 in W x 48.8 in D x 82.2 in H
22.76 sq ft floor
48.4 in door width
Floor included
A 6×4 shed is the compromise most people actually want. At 22.76 square feet it parks a push mower with room for the fuel can and a bag of mulch, and the 67.1 by 48.8 inch footprint tucks against a garage or fence line.
The 48.4 inch door width is the useful number here, because it clears a standard walk-behind deck with handle bars folded without a tight turn.
Sentiment on this one is genuinely split, and owners are candid about it. Buyers who anchor it to a wood base and treat it as light-to-medium duty storage tend to be happy, and several report finishing the build solo once the roof truss step is behind them.
The resin body cannot rust, the sloping roof prevents pooling, and a window plus ventilation panels cut the musty smell that plastic boxes develop.
For a renter, this is the practical pick. It needs no permanent foundation beyond a flat pad, it can be carried or dragged if you move, and it removes the mower from the patio without claiming a corner of the lot.
Owners also like the UV-resistant exterior finish, which holds colour better than untreated plastic boxes, and the fact that surfaces wipe clean rather than needing a preservative each spring.
The walls are the honest problem. Buyers describe them as thin and flimsy and note they cannot support wall-mounted shelves, so all storage has to sit on the floor. The floor is thin too, and can wobble or puncture under a heavy mower.
Documentation is another weakness. The written instructions and the online video disagree in places, some shipments arrived without paper instructions or with missing parts, and doors can end up skewed and hard to close. The included combination lock is not worth much.
50 in W x 29 in D x 79 in H
67 cu ft
HDPE multi-wall
50 in door width
The ZZM is the one to pick if you do not want the build to become a two-weekend project. The panels carry engraved part numbers and the hardware comes in labelled bags, so you are not cross-referencing a diagram with a pile of screws.
At 67 cu ft and 79 inches tall it is a tall vertical cabinet with room for a mower and long tools, and the 50 inch door width is one of the more generous openings in a cabinet of this footprint.
Reviewers praise the body as sturdy and note it has stayed water resistant through wind-driven rain. The elevated ground floor and overlapping roof keep rain and snow out, and installation is reported at about two hours with nothing beyond a screwdriver.
Labelled parts sound minor until you are alone on a Saturday with a corrugated panel, a bag of unidentified hardware and no diagram. It is the difference between an afternoon and a week, and it is the reason this ranks where it does.
The elevated floor is worth noting for stored mowers. Raising the base above grade means the mower sits off bare soil, which is what stops damp coming up through the floor in wet months.
The shelves are a separate purchase and the optional single-shelf accessory reportedly does not fit properly, so plan vertical storage around the top hold bar rather than bought-in shelves.
Doors can swing shut on their own if the shed is not on a flat surface, which is a levelling problem rather than a product defect but catches people out. Instructions rely on small blow-up diagrams rather than written steps, so budget extra time for the door alignment stage.
Most sizing mistakes happen because people compare floor area instead of door openings. A 54 cu ft cabinet and a 100 cu ft cabinet can both be useless for a riding mower if the door is too narrow, so measure the machine first and the floor second.
Door width is the single number that decides whether your mower goes in smoothly. Measure the widest point of your machine including the deck, then add 4 to 6 inches of slack for steering corrections. The Keter Manor 4×6 gives you 51.2 inches, the Patiowell 6×4 gives 48.4 inches, the Suncast Glidetop gives 42.5 inches, and the Keter Store-It-Out Prime gives 28.5 inches, which is the difference between a shelter and a cupboard.
Door height matters for a mower with the handle up. Check the figure against your mower’s steering column and handlebars, not against the shed’s exterior height, because headroom above the door frame is often less than the peak suggests.
Push mower: a 4×6 or 6×4 cabinet is enough. Look for a door of at least 40 inches and a floor of 20 square feet or more, and add a wood platform if the floor is thin.
Riding mower: budget for a 46 inch door opening at minimum, and check floor load before anything else. Anything in the 400 to 700 pound range needs a floor that is either stated-rated or reinforced, and the Suncast Tremont 8×10 is the only walk-in option in this list.
Zero-turn: the wheel-to-wheel stance is wider than a tractor, and the steering column needs vertical room. Treat zero-turn as a riding-mower requirement, then add 6 inches of depth so you can walk around the machine inside the shed.
If you also store a spreader, dethatcher or leaf vacuum, add their footprint to the floor calculation rather than hoping they stack.
Single-skin resin is the cheapest and flexes. Multi-wall and double-wall panels trap air between skins, which stiffens the wall and improves temperature behaviour, and that is why the KINYING, the ZZM and the Rubbermaid all specify it.
Polypropylene resin and high density polyethylene are the two materials used here. Polypropylene is what Keter and Suncast use in their resin cabinets; HDPE is what the KINYING and the ZZM are built from and is described as waterproof rather than merely water-resistant.
Neither material needs painting, sealing or rust protection. What resin does not forgive is UV exposure over many seasons, so a UV-protected listing is worth a look if the shed sits in full sun with no shade.
Our broader guides cover resin storage sheds for gardens and, if you are still weighing materials, metal storage sheds for tools.
Base prep is the most-skipped step and the most common reason doors will not close. Resin panel seams stress on an out-of-level floor, and several reviews in this roundup explicitly blame the foundation for door problems.
For a compact cabinet, a 4 inch compacted gravel pad is the practical route. Excavate 4 inches, lay landscape fabric to stop weeds, add 2 to 3 inches of compacted crushed stone, level it, and check the fall with a spirit level before the kit arrives. For a riding mower shed, pavers on a sand bed give a harder surface and let you correct high spots as you go.
Concrete is the most durable base but it cracks if it moves, and it makes later changes impossible. Whatever you choose, the rule is the same: level, and slightly crowned so water runs off rather than pooling at the door sill.
Members on r/homeowners and r/shedditors ask this question constantly, and the consistent answer across threads is that the base matters more than the shed brand.
Rodents nest in mower air intakes and chew wiring, and a resin shed gives them a dry sheltered box to do it in. Seal the door threshold with a strip, fit a lockable hasp, and run steel wool or copper mesh into any gap at the base. A battery-powered ultrasonic unit is popular in forum threads and helps, but sealing gaps is what actually solves it.
Heat is the other issue people underestimate. Owners report resin sheds becoming extremely hot inside in summer, which is exactly why the Suncast Tremont’s six skylights and vents, and the Keter Manor’s skylight and window, matter more than they look like they should. A ventilated shed is also the right call if you store fuel or cordless mower batteries in there.
For theft, layer it. A padlockable shed door is deterrence, so also fit a wheel lock or chain to the mower itself, since a mower that cannot be moved is not worth taking.
Store the mower with a full tank of treated fuel and run the engine briefly to circulate it, or drain the tank fully if you are storing for a season. Change the oil before it goes in rather than after it comes out.
For a cordless mower, charge to full, then store it between 40 and 60 percent in a climate where the shed does not hit extreme heat. Li-ion cells age faster in heat than in cold, which is another argument for the ventilated models above.
Finally, check your local HOA or council rules before you build. Several manufacturers print this warning in their own listings, and it is a much cheaper discovery to make now than after the panels are up.
Suncast, Keter, Lifetime and Rubbermaid are the tier-one names buyers search for most, and they differ more in format than in material. Rubbermaid sells the most rigid panels and publishes a per-panel load rating. Keter and Suncast cover the most formats, from 4×6 cabinets to 8×10 walk-ins, and Suncast is the brand most often named as the budget answer for mower storage in forum threads.
Below that tier sit newer brands such as the KINYING, the ZZM and Patiowell, which compete on price and specification. The specs on those listings are often better than the tier-one products at the same size, but the published review counts are smaller, so you are buying less proven hardware. That is a reasonable trade, and it is why the KINYING still leads our list despite the smaller base.
Our related mower guides cover riding lawn mowers for large yards and robotic lawn mowers if you are matching a machine to a shed rather than a shed to a machine.
A riding mower needs a door opening of at least 46 inches and genuine walk-in headroom, which rules out most vertical resin cabinets. The Suncast Tremont 8×10 is the strongest choice here at 547 cu ft, 100.5 inches wide with lockable double doors. Check the floor load rating before you buy, since riding mowers commonly weigh 400 to 700 pounds.
For push mowers, the Keter Manor 4×6 and the Patiowell 6×4 are the practical picks, both with door openings around 48 to 51 inches. The KINYING 57 cu ft vertical cabinet is our overall choice because its floor is rated for mowers. For riding and zero-turn mowers, step up to a walk-in building such as the Suncast Tremont 8×10.
The best shed is the one whose door opening is wider than your mower and whose floor is rated for the load. A multi-wall resin or HDPE cabinet on a level base suits a walk-behind, and a steel-reinforced resin building with double doors suits a riding mower. Always measure the mower’s widest point before choosing.
Suncast, Keter, Lifetime and Rubbermaid are the most established resin shed makers, with Suncast and Keter covering the widest range of sizes. Newer brands such as KINYING and ZZM publish competitive specifications at lower cost, but with smaller review histories. Pick the brand whose door width and floor rating match your mower rather than on brand alone.
Yes, and an enclosed resin shed protects a mower far better than a tarp. It blocks ultraviolet light that degrades paint and plastic, rain that causes rust, rodents that nest in air intakes and wiring, and theft. Run the engine briefly with treated fuel before winter storage, and fit a wheel lock for security.
Compacted gravel on landscape fabric is the most common answer for a small resin cabinet: excavate about 4 inches, roll out fabric to block weeds, add 2 to 3 inches of crushed stone and compact it level. Pavers on a sand bed work better under a heavy riding mower, and concrete suits a permanent installation. A level base is what stops shed doors from warping.
After working through all ten, the KINYING 57 cu ft HDPE vertical shed is the best plastic storage shed for lawn mowers overall, because it is the only compact cabinet here with a floor published as mower-rated and a 49.2 inch interior width that clears a standard walk-behind on the first attempt.
The Keter Manor 4×6 is the runner-up for anyone who wants more room and a higher published load figure, and the Suncast Glidetop 98 cu ft horizontal shed wins on weekly access. For a riding mower or zero-turn, the Suncast Tremont 8×10 is the only one of these that fits properly, and the Patiowell 8×8 is the compromise when standing headroom matters more than square footage.
Whatever you pick, measure the mower first, level the base second, and check every panel and hardware bag against the manual on arrival. Those three steps decide whether the shed works, and the guide above covers the measurements to do each one. If you are still early in the process, our plastic storage cabinet roundup covers smaller indoor-adjacent storage options.
