DURAMAX · 4 x 10 ft · Vinyl (PVC)
Duramax SideMate Plus Pro 10x4 Vinyl Outdoor Storage Shed: specs and what fits
Duramax SideMate Plus Pro 10x4 Vinyl Outdoor Storage Shed is a 4 x 10 ft (40 sq ft) vinyl shed, listed at $989, or $24.73 per sq ft, above the $20.24 median for vinyl kits we track. It is too small for a lawn tractor and needs a 6 x 12 ft gravel pad of about 1.4 tons.
Duramax SideMate Plus Pro 10x4 Vinyl Outdoor Storage Shed specifications
| Brand | DURAMAX |
|---|---|
| Nominal footprint | 4 x 10 ft |
| Floor area | 40 sq ft |
| Material | Vinyl (PVC) |
| Floor | not stated in listing; plan a floor kit or base |
| Listed price | $989 |
| Price per sq ft | $24.73 (median for vinyl: $20.24) |
| Features in listing | Double doors or dual entry |
| Permit status (size only) | Usually exempt |
Figures come from the manufacturer's Amazon listing. Nominal sizes are usually measured at the roof line or outside the walls, so interior floor is a little smaller. Confirm door opening and interior height on the listing before buying for a mower or tall tools.
What fits in the Duramax SideMate Plus Pro 10x4 Vinyl Outdoor Storage Shed?
| Item (on its own) | How many fit |
|---|---|
| Lawn tractor | none |
| Push mower | 4 |
| Adult bike | 2 |
| Wheelbarrow | 2 |
| 96 gal trash can | 4 |
| Shelving unit | 4 |
Counts assume items flat on the floor with a clear aisle from the door. Wall hooks for bikes and tools raise them a lot. Run your own list through the shed size calculator.
What else does it need?
- Base: 6 x 12 ft pad, 1.4 tons of stone at 4 in, or a 25-bag slab. Full foundation quantities for a 4x10.
- Anchors: about 6, corners plus the long walls. Anchor kits compared.
- Inside: shelving, a solar light and a proper lock. Shed shelving, solar shed lights.
Other 4 x 10 ft kits
Same footprint, different builds and prices.
Prices change often; the button shows today's price on Amazon.
More DURAMAX sheds
- Duramax YardMate 5' x 5' Plus Plastic Garden Shed (5 x 5 ft, $869)
- Duramax SidePro 10.5 Ft. x 3 Ft. Vinyl Garden Storage Shed (3 x 10.5 ft, $839)
- Duramax SideMate 4x8 Vinyl Resin Outdoor Storage Shed (4 x 8 ft, $662)
- Duramax SideMate Plus 4x10 Vinyl Lean-to Outdoor Storage Shed (4 x 10 ft, $799)
- Duramax Sidemate 4'x10' Vinyl Storage Lean to Shed (4 x 10 ft, $799)
- Duramax YardMate 5' x 8' Plus Plastic Garden Shed (5 x 8 ft, $999)
- Duramax Storemax Plus 7 Ft. W X 7 Ft. D Vinyl Garden Storage Shed (7 x 7 ft, $992)
- Duramax Woodside Plus 10 x 8 (8 x 10 ft, $1,299)
Similar-size kits from other brands
- Lifetime 6418 Outdoor Storage Shed (5 x 8 ft, $970)
- Devoko 6x6 FT Resin Shed with Floor (6 x 6 ft, $490)
- Arrow Shed Elite 6' x 6' Tall Outdoor Steel Storage Shed (6 x 6 ft, $736)
- Keter Darwin 6x6 Ft All-Weather Storage Shed with Skylight (6 x 6 ft, $738)
- AECOJOY 6' x 8' Lean to Storage Shed (6 x 8 ft, $199)
- Polar Aurora 6x8 FT Outdoor Storage Shed (6 x 8 ft, $200)
Frequently asked questions
What size foundation does the Duramax SideMate Plus Pro 10x4 Vinyl Outdoor Storage Shed need?
A 4 x 10 ft shed sits best on a pad 1 ft larger on every side: 6 x 12 ft. At 4 in of compacted crushed stone that is about 1.4 tons; a 4 in concrete slab under the footprint takes 25 bags of 80 lb mix. Whatever base you choose, it must be flat and level, because resin and steel kits rack out of square on uneven ground and the doors stop closing.
Does the Duramax SideMate Plus Pro 10x4 Vinyl Outdoor Storage Shed need a permit?
At 40 sq ft it is exempt by size under all three common thresholds. The IRC exempts one-story storage sheds up to 200 sq ft, but many towns lower that to 120 or 100 sq ft, and setbacks, HOA rules and electrical work apply regardless. Check your local code before ordering.
Is $989 a good price for this shed?
It works out to $24.73 per sq ft. Across the 7 vinyl kits we track, the middle 80 percent run $12.99 to $26.63 per sq ft with a median of $20.24, so this listing is above the $20.24 median. Amazon prices move often, and the same model in another color can list for a different price, so compare the variants below.
This page is researched guidance, not professional engineering, legal or building-code advice. Sizes, loads and permit rules vary by product and by town: check your local code and the kit manufacturer's instructions before you build.


