Quick Answer: The Suncast Tremont 8x10 Resin Shed is the best permanent storage option for a zero-turn mower — its steel-reinforced resin panels, reinforced floor, and 5-ft-wide double doors are built to house a riding mower long-term, though at roughly $1,700 it’s a real structure, not a quick fix. Owners who want mower storage fast without a permanent build should get the ShelterLogic AutoShelter, a steel-frame fabric instant garage that runs about $390-$600 and assembles in a weekend. Whichever you pick, size the door to your mower’s actual width (most zero-turns need at least 60 inches of clearance to pass through comfortably, since the wheel-to-wheel stance can exceed the deck width) rather than just the floor to its footprint.
A cover protects a mower parked in the open, but a real storage structure solves problems a cover can’t — UV exposure over months, rodents nesting in the engine bay, and a mower sitting in plain sight for anyone driving by. Here’s how the shed and shelter options compare, and what to check before you park a $3,000-plus machine inside one.
Last updated: August 30, 2026 — re-checked current pricing on all three picks. Suncast Tremont 8x10 confirmed at $1,699.95 sale (from $1,899.99 list), within the previously published range; ShelterLogic AutoShelter confirmed at $419.99, within range; Best Choice Products 10x8ft confirmed at $169.99-$187, within range. No price drift found on any pick.
Zero-turn mower storage sheds compared
| Shed / shelter | Best for | Structure type | Interior size | Price |
|---|---|---|---|---|
| Suncast Tremont 8x10 (BMS8100) | Best overall / permanent | Reinforced resin, floor included | ~7'9" x 9'9" x 8'4" | ~$1,650-$1,750 |
| ShelterLogic AutoShelter 10x15x8 | Best value / fastest setup | Steel-frame, fabric cover | 10' x 15' x 8' | ~$390-$600 |
| Best Choice Products 10x8ft | Best budget | Steel-frame, fabric cover, roll-up doors | 10' x 8' | ~$170-$286 |
1. Suncast Tremont 8x10 Resin Shed — Best Overall / Permanent
Suncast Tremont 8x10 Resin Storage Shed (BMS8100)
- Steel-reinforced, multi-wall resin panels and a reinforced resin floor are rated to support heavy equipment, per Suncast's own spec sheet — a meaningful step up from a fabric shelter's floorless, tarp-over-gravel setup.
- Interior space measures roughly 7'9" wide x 9'9" deep x 8'4" tall, with a 5-ft-wide, 6-ft-tall double-door entrance wide enough to drive a zero-turn straight in without folding in mirrors or trim.
- Resin construction won't rust like a metal shed can, and six built-in skylights mean you're not fumbling for a light switch to check the oil or hook up a battery charger in winter.
Assembly on a shed this size runs a full weekend for two people and needs a level pad underneath — worth renting or borrowing a laser level rather than eyeballing it, since an off-level floor stresses the resin panel seams over time.
This is the buy if the mower is staying at this property for years and you want a structure that adds real resale value to the yard, not just a temporary fix.
2. ShelterLogic AutoShelter 10x15x8 — Best Value / Fastest Setup
ShelterLogic AutoShelter 10' x 15' x 8' Instant Garage
- A 1-3/8-inch diameter, powder-coated steel frame supports a 5.5 oz/sq. yd. triple-layer woven polyethylene cover that's heat-sealed rather than stitched, per ShelterLogic's own materials spec — stitched seams are the most common leak point on cheaper canopy shelters.
- At 10 ft wide by 15 ft deep, there's enough room for the mower plus a mower cart or dethatcher parked alongside it, without the multi-day build of a resin or metal shed.
- No poured floor or foundation needed — stakes and ground anchors hold it down over gravel, a paver pad, or packed dirt, which is why it typically goes up in a weekend versus the longer timeline a permanent shed needs.
The fabric cover is rated for years of UV and weather exposure but isn’t rodent- or rust-proof the way a resin or metal shed is — pair it with the rodent-proofing step below rather than skipping it because the structure feels more “temporary.”
3. Best Choice Products 10x8ft Outdoor Storage Shed — Best Budget
Best Choice Products 10x8ft Outdoor Storage Shed
- Dual roll-up zipper doors at both the front and rear improve airflow and give a second access point, useful for pulling a mower straight through rather than backing it out the way it came in.
- Mesh-covered side windows resist weather while cutting down on the trapped humidity that speeds up rust and mildew inside a fully sealed structure.
- At under $300, it's the cheapest real option on this list — the tradeoff is a lighter fabric cover and stake-and-bungee anchoring rather than the steel frame's rigidity under heavy wind or snow load.
Right for a renter, a second property, or anyone who just needs the mower out of the weather for a season before deciding whether a permanent shed is worth the investment.
What to check before buying
- Door width matters more than floor size — a zero-turn’s wheel-to-wheel stance can run wider than its deck, so measure your specific mower’s overall width and add a few inches of margin rather than assuming a “fits riding mowers” label means yours specifically.
- Rodent-proofing is a real, separate step from a shed’s walls — mice actively seek out a mower’s air intake and any open cavity around the seat as nesting spots over winter, and chewed wiring is a common reason a mower won’t start in spring; see our why won’t my zero-turn move guide if you’re troubleshooting that exact symptom. A battery-powered ultrasonic rodent repellent (commonly $20-$35 for a shed- or garage-rated unit) is a reasonable supplement to sealing gaps, not a replacement for it.
- A shed door lock stops opportunists, not a determined thief — a metal shed’s padlockable sliding doors are the first layer; a dedicated wheel lock like the MoJack Anti-Theft Wheel Lock (rel=“nofollow sponsored”, roughly $90-$110, fits 18”-25” tires) immobilizes the mower itself as a second layer, the same building-plus-machine approach commercial equipment yards use.
- Off-season prep still applies inside a shed — a roof over the mower doesn’t replace fuel stabilization, an oil change, or battery care; see our winterizing checklist for the five steps that matter regardless of where the mower sits.
- A cover still helps inside a shed with skylights or a fabric roof — condensation and dust settle on an uncovered mower even indoors; see our best zero-turn mower cover guide if the shed isn’t fully sealed.
- Attachments need their own space — a shed sized only to the mower’s footprint leaves no room for a tow-behind cart, spreader, or dethatcher; add depth to your floor plan if you’re storing more than just the mower.
- A leaf vacuum hopper is the bulkiest thing you’ll store — a 32-55 cubic-foot tow-behind leaf vacuum takes up more floor space than any other attachment on this list; measure its hitched length, not just the mower’s, before committing to a shed depth.
The bottom line
For most owners keeping a zero-turn at the same property long-term, the Suncast Tremont 8x10 Resin Shed is worth the roughly $1,700 investment — it’s rust-proof, floored, and sized with real door clearance for the mower to drive straight in. If you need the mower under cover this season without a multi-day build, the ShelterLogic AutoShelter gets there for a third of the price, and the Best Choice Products fabric shed covers the budget end for a renter or second property. Whichever structure you buy, don’t skip the rodent-proofing and a wheel lock — a roof alone doesn’t stop either problem. See our full zero-turn mower guide for deck sizes and specs across every major brand if you’re still shopping for the mower itself.