By Urbano Mart Team. Published 18 September 2026.
| Short answer Buy the floor with the shed rather than building one later. For tools and a push mower the 5×4 at $385 is enough. For a household, the 8×8 at 427 cubic feet is the size most people settle on. For walk in storage with daylight, the 8×10 with skylights and a 60 by 72 inch door opening is the one. |
Search for the best resin storage shed with floor and half the results are sheds where the floor is an optional extra. That matters more than the spec sheets suggest. A shed without a floor sits on whatever you built, which means a slab or a timber deck goes into your budget and your weekend before the shed even arrives. The four models below all include a floor as standard. They’re the ones we stock. Treat this as an honest tour of our own range rather than a neutral survey of the market.
Why the floor decides more than the walls
Three reasons, in order of how soon you notice them.
- Rigidity: the floor ties the four walls together and keeps the structure square. Square walls mean doors that keep closing in year three.
- Damp: contents sitting on soil or gravel wick moisture. Cardboard boxes go soft, metal tools spot and cushions grow mildew.
- Cost and time: a timber deck or a poured slab adds real money and a weekend. An included floor removes both.
A floor doesn’t remove the need for a level base underneath it. Compacted gravel at least 4 inches deep, level in both directions, is still the starting point.
How we chose
Four criteria, applied to everything in our own range. Anything that failed two of them isn’t in the list.
- Floor included as standard, not an accessory.
- Lockable doors, since most people are storing things worth taking.
- Published capacity or interior dimensions, so buyers can plan shelving instead of guessing.
- Real customer ratings on the product page, not a launch listing with no feedback.
The four at a glance
| Model | Size | Capacity | Rating | Price |
|---|---|---|---|---|
| 5×4 FT Resin Outdoor Storage Shed | 5 x 4 ft | Small. Tools and a push mower | New listing | $385.00 |
| 6×4 ft Durable Resin Shed, Graphite | 6 x 4 ft | 139 cu ft | 4.50 from 9 ratings | $1,350.00 |
| Resin 8 x 8 Storage Shed | 8 x 8 ft | 427 cu ft | 4.45 from 21 ratings | $1,650.00 |
| Spacious 8×10 Ft Heavy Duty Resin Shed | 8 x 10 ft | Interior 7 ft 9 in x 9 ft 9 in x 8 ft 4.5 in | 4.47 from 18 ratings | $1,950.00 |
Our picks
Recommended products
-
5×4 FT Resin Outdoor Storage Shed with Floor
Original price was: $475.00.$385.00Current price is: $385.00. -
6×4 ft. Durable Resin Outdoor Storage Shed with Floor & Double Doors – Graphite
Original price was: $1,750.00.$1,350.00Current price is: $1,350.00. -
Resin 8 x 8 Storage Shed with Lockable Doors – Waterproof Garden Shed with Floor
Original price was: $1,940.00.$1,650.00Current price is: $1,650.00. -
Spacious 8×10 Ft Heavy Duty Resin Storage Shed with Reinforced Floor, Skylights & Lockable Doors
Original price was: $2,250.00.$1,950.00Current price is: $1,950.00.
Best for small yards: 5×4 FT Resin Outdoor Storage Shed with Floor
5×4 FT Resin Outdoor Storage Shed with Floor is the cheapest route to dry, off ground storage. 12mm double layer resin panels with a matching 12mm resin floor finished in PVC. It fits along a side return or against a boundary. It takes a push mower with long handled tools hung around it.
- Floor included at a price where most competitors sell it separately
- Double layer panels help the walls hold their shape over years
- Small enough to stay under permit thresholds in most areas
Honest limitation: 20 square feet is reach in storage. You do not stand inside this one. It also carries no customer ratings yet. There’s no review history to lean on.
Best small shed for security: 6×4 ft Durable Resin Outdoor Storage Shed, Graphite
6×4 ft Durable Resin Outdoor Storage Shed packs 139 cubic feet into a 24 square foot footprint, with a steep slope roof that sheds rain and snow, a skylight for daylight, double doors and padlock compatibility. Floor included, ventilation included, impact resistant panels. Rated 4.50 out of 5 across 9 ratings.
- Skylight and ventilation, which small sheds usually skip
- Steep slope roof rather than a near flat lid
- Takes a padlock: bikes and power tools can live in it
Honest limitation: at $1,350 it costs more than sheds with twice the floor area, including our own 8×8. You’re paying for build quality and features in a small footprint, which makes sense only when space is the constraint rather than budget.
Best all rounder: Resin 8 x 8 Storage Shed with Lockable Doors
Resin 8 x 8 Storage Shed with Lockable Doors gives you 427 cubic feet, a floor and lockable doors, which is the combination most households actually need. Lawn equipment, garden tools, patio furniture and bicycles all fit together with floor space left over. It carries the largest review base in the range at 4.45 out of 5 from 21 ratings.
- 427 cubic feet, published rather than estimated
- Shelving down one wall still leaves a clear aisle
- Waterproof with the floor included
Honest limitation: an 8 by 8 base has to be properly level. Doors that stop lining up after a season are nearly always a base problem. At this size the shed is heavy enough that fixing it later means emptying it first.
Best for walk in storage: Spacious 8×10 Ft Heavy Duty Resin Storage Shed
Spacious 8×10 Ft Heavy Duty Resin Storage Shed measures 8 ft 4.5 in wide by 10 ft 2.25 in deep by 8 ft 7 in high outside, with an interior of 7 ft 9 in by 9 ft 9 in by 8 ft 4.5 in. The double doors open to 60 inches wide by 72 inches high, there’s a reinforced floor, skylights overhead and a padlock hasp. Rated 4.47 out of 5 across 18 ratings.
- Published interior dimensions make shelving planning straightforward
- Skylights mean you can find things without running power out there
- Reinforced floor for ladders, power equipment and long tools
Honest limitation: the padlock isn’t supplied. A 60 inch opening is generous for garden equipment yet still tight for some riding mowers. Measure the machine at its widest point first.
| Ordering from Urbano Mart Free shipping across the USA, excluding HI, PR, AK and GU. Orders are confirmed by email straight away, processed in 1 to 3 business days and shipped in 3 to 5 business days through UPS, USPS or FedEx. Returns stay open for 30 days. Questions go to sales@urbanomartllc.com or +1 313-487-8379, Monday to Friday, 9:00 AM to 5:00 PM EST. |
What to look for in any resin shed
Use this list on any brand, not only ours.
| Feature | Why it matters | What good looks like |
|---|---|---|
| Floor | Keeps contents dry, keeps walls square | Included as standard, same material as the walls |
| Panel construction | Thin single skin panels flex and crack | Double wall panels, often around 12mm |
| UV resistance | Sun fades and embrittles cheap resin | Stated UV resistant grade |
| Roof pitch | Flat roofs pool water and hold snow | Steep slope, ideally with a ridge |
| Locking | Deters opportunists | Padlock hasp on double doors |
| Ventilation | Stops condensation and trapped fumes | Vent panels built into the walls |
| Daylight | Dark sheds hide what you own | Skylight or window panels |
| Anchor points | Wind moves an empty shed | Marked anchor positions in the floor |
The base, and why it is never optional
Every warranty conversation about sheds ends up here. A resin shed with an included floor still needs level ground under it, because the floor is a panel rather than a foundation. Compacted gravel 4 inches deep is the standard answer and a concrete slab is the permanent one. Level matters in both directions, checked with a long spirit level rather than eyeballed. After that, anchor it: auger anchors for soil and gravel, fixings into a slab. Sheds blow over empty far more often than full.
Five mistakes buyers make
1. Buying a shed without a floor to save money
The saving disappears into timber and a weekend. Contents sit on damp ground until you finish the job.
2. Choosing on footprint alone
Cubic feet and interior height decide what actually fits once shelving goes in. A taller shed at the same footprint holds noticeably more.
3. Skipping ventilation
Sealed sheds sweat. Anything metal inside spots and anything fabric goes musty over a winter.
4. Assuming the door opening matches the wall
Openings are always narrower. Check the published figure against your widest machine before ordering.
5. Building on grass and hoping
Grass compresses unevenly, the shed racks out of square and the doors bind. That’s the single most common complaint about any shed, in any material.
Key takeaways
- An included floor keeps the structure square and the contents dry. Treat it as a requirement.
- 427 cubic feet at 8×8 is the size most households end up needing.
- Skylights and ventilation are what separate a usable shed from a dark damp one.
- Price does not track size in a straight line. Build quality and features cost money in small footprints.
- A level gravel base and anchors decide how long any of this lasts.
Frequently Asked Questions
Do resin sheds come with a floor?
Some do and many don’t, which is why the spec sheet matters more than the photo. Models sold with a floor include a panel that locks into the wall structure, keeping the shed square and the contents off the ground. Where a floor is optional, budget for a timber deck or a concrete slab and the time to build it before the shed arrives.
Is a resin shed better than a wooden one?
For maintenance, yes. Resin doesn’t need painting, doesn’t rot and doesn’t host insects. Wood looks better to most eyes, takes shelving screwed straight into the studs and can be repaired panel by panel. Resin wins on time spent and wood wins on customization. The honest answer depends on whether you enjoy the upkeep.
How long do resin sheds last?
Well maintained resin sheds on a level anchored base commonly run past ten years. UV resistant grades hold their color far longer than budget plastic. Failures concentrate at fixing points and hinges, both of which get stressed when a shed sits on uneven ground. The base does more for lifespan than the material grade does.
Can you put a resin shed on grass?
Not directly, no. Grass settles unevenly and holds water against the floor panel. The shed twists out of square and the doors bind within a season. Lay compacted gravel at least 4 inches deep or pour a slab. Both cost less than replacing a shed that racked.
Are resin sheds secure enough for bikes?
With lockable double doors and a closed shackle padlock, they deter opportunists, which covers most real world theft. For bikes worth serious money, add a ground anchor bolted through the floor into the base and lock frames to it. No domestic shed in any material stops a determined thief with time.
Do resin sheds get hot inside?
Less than bare metal, though any closed structure in direct sun heats up. Vent panels help a lot, as does siting the shed where it gets afternoon shade. Paint, aerosols and lithium batteries are still poor candidates for shed storage through a hot summer regardless of material.
What size resin shed should I buy?
Measure what’s going in and add roughly 30 percent. Tools and a push mower fit a 5×4 or 6×4. A household’s garden equipment plus patio furniture wants an 8×8. Ladders, bikes and long tools together need an 8×10 or larger. Buyers far more often regret going too small.
Do you need planning permission for a resin shed?
Requirements are local and usually key off floor area, height and distance from the boundary rather than the material. Small sheds are commonly exempt and larger ones may need a permit. Check with your local building department before ordering, since moving a built shed to satisfy a setback rule is a miserable job.
How do you clean a resin shed?
Warm water, mild detergent and a soft brush, then rinse with a hose. Avoid solvents and abrasive pads, both of which dull the surface and can damage the UV layer. Clear leaves and soil away from the base at the same time, since debris piled against the walls holds moisture where you cannot see it.
Can you add shelving to a resin shed?
Yes, with a caveat. Resin walls aren’t load bearing like timber studs. Heavy shelving should be free standing on the floor or fixed to the manufacturer’s designated reinforcement points. Light hooks for hand tools are usually fine. Check the manual before you drill anything into a wall panel.
About the author
Urbano Mart Team. Urbano Mart LLC has been selling home improvement products to customers across the USA since 2022, with outdoor sheds and storage as one of our biggest ranges. Every capacity, dimension and price in this article comes from the product pages of sheds we stock and ship ourselves.
Related reading
Still deciding between materials? Read resin vs metal storage shed. Not sure which footprint you need? Our sizing walkthrough covers what size storage shed do I need from 5×4 through 10×12. Once it’s up, shed organization ideas explains how to lay it out. Whatever you pick, the best resin storage shed with floor is the one sitting on a level base. More models sit in the Storage Shed collection.



















