Quick verdict
An 8x10 walk-in resin shed from Suncast with 547 cubic feet of space, steel-reinforced panels, a floor, lockable double doors, six skylights, door windows and vents, in a barn-style profile. It suits a homeowner who needs to park a riding mower or a motorcycle alongside bikes and lawn gear and wants a building that never needs paint. The caveat is the foundation: an 8x10 resin shed needs a level, anchored base and a full weekend with two people to assemble.
Strengths
- 547 cubic feet of walk-in storage
- Steel-reinforced resin panels
- Lockable double doors sized for ride-on equipment per the maker
- Six skylights plus door windows and vents
- Pre-cut, labeled parts with minimal tools
- No painting, sealing or rust to manage
Weaknesses
- Needs a level, anchored base that is not included
- Assembly is a two-person weekend
- Padlock and shelving not stated as included
- Resin walls flex more than a wood shed when loading heavy shelves
The overall YardToolLab Score is out of 100. Section scores are out of 10.
Who this shed is for
A riding mower, two bikes, a snow blower and a patio set do not fit in a 6×4 box, and they are why most people end up looking at an 8×10. The Suncast Tremont 8×10 is the resin answer to that list: a barn-style walk-in shed with 547 cubic feet inside, steel-reinforced panels, a floor, lockable double doors and six skylights, from the brand that has made resin yard storage longer than almost anyone. It suits a suburban lot where the garage is full and a wood shed means paint every few years.
This review is based on the maker’s published specifications and on recurring owner feedback. We have not run this product ourselves.
What you get
The kit ships as pre-cut, labeled resin panels, steel reinforcement, roof sections, a floor, double doors with windows, six skylights and vents, with Suncast describing setup as minimal-tool. The maker states 547 cubic feet of walk-in space and lists motorcycles, tractors, mowers and golf carts as fair loads, which tells you the door opening is generous. Not stated in the listing: exact exterior and door dimensions, roof load rating, panel thickness, padlock, shelving, base kit or anchor hardware. Suncast normally publishes those in the manual on the product page; read it for the door width if you are parking a specific machine.
Capacity and footprint
At 547 cubic feet this is a genuine walk-in building. An 8×10 floor is about 80 square feet, and with the barn-style roof the center height is enough for a tall adult to stand and for a loft shelf across the back. In practice that means a riding mower along one side, a push mower and a snow blower nose-in on the other, bikes hung on the wall and long-handled tools in the corners. Site planning matters more than the shed: allow about two feet of clearance on each side for assembly and roof access, and check local setback rules, since a building of this size can need a permit in some towns.
Materials and weather resistance
Suncast uses resin panels with steel reinforcement, which is what lets an 8×10 plastic building stand up to wind and snow without the sag that single-skin kits develop. The resin does not rust, rot, fade quickly or need paint, and Suncast says no sealing or upkeep is required. The six skylights and the door windows are the detail that make it pleasant to use; a shed you can see inside gets used. Vents keep condensation down. Resin sheds in general are rain tight through the walls and roof but can admit water under the doors in a wind-driven storm, so keep the floor near the doors clear and sweep it after heavy weather.
Assembly and base
Plan a full weekend with two people, a drill, a step ladder and a long level. Everything that goes wrong with a resin shed traces back to the base: doors that will not meet, roof panels that will not clip and leaks at the ridge all come from a pad that is out of level or that settles later. A compacted gravel pad with pavers, a concrete slab or a pressure-treated platform are all suitable, and the shed should be anchored to it; Suncast does not list anchors in the box. Owners who skip the base and build on grass are the source of most negative reviews of sheds in this class.
Doors, security and living with it
The double doors lock and are wide enough for ride-on equipment per the maker. Add a weatherproof padlock. Inside, resin walls accept Suncast’s own shelf and hook accessories; owners report that heavy freestanding shelves should sit on the floor rather than hang from the panels. Hose the exterior once a year, clear leaves off the skylights so they keep letting light in, and keep snow from piling on the lee side of the roof in a hard winter.
Alternatives to Consider
The Lifetime 8×10 outdoor storage shed is the direct rival, with steel-reinforced walls, a slightly different door layout and a strong record on wind resistance. The Keter Factor 8×11 is the other brand-name 8-foot resin shed, with a wood-look finish. If the budget is tighter, the Suncast BMS7800 7×7.5 gives up some floor space but keeps the same maker and the same panel system.
Verdict
Buy the Suncast Tremont 8×10 if you need to park a riding mower or a bike collection under cover, want daylight inside from six skylights, and are prepared to build a level anchored base first. Skip it if you have nowhere to lay a pad, if your town requires a permit you would rather avoid, or if a 6×8 would hold everything you own.
Full specifications
Suncast Tremont 8x10 Ft Resin Outdoor Storage Shed with Floor, Lockable Double Doors and Skylights FAQs
Suncast states 547 cubic feet of walk-in space on an 8 by 10 foot floor, enough for a riding mower along one wall with bikes, a push mower and tools around it.
A level, firm pad of compacted gravel and pavers, a concrete slab or a pressure-treated platform, with the shed anchored to it. The kit does not list a base or anchors.
The double doors are lockable, but a padlock is not stated as included. Add a weatherproof lock.
Possibly. Many towns require a permit or set setback rules for sheds over a certain floor area, and 80 square feet is close to common thresholds. Check with the local building office before ordering.

