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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

BrandDURAMAX
Nominal footprint4 x 10 ft
Floor area40 sq ft
MaterialVinyl (PVC)
Floornot 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 listingDouble 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?

Bike Push mower Shelves door 10 ft 4 ft
Mower, tools and shelving. Drawn to scale, one square is 1 ft. Too shallow to walk into: everything is reached from the doors. Does not fit: Wheelbarrow.
Item (on its own)How many fit
Lawn tractornone
Push mower4
Adult bike2
Wheelbarrow2
96 gal trash can4
Shelving unit4

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?

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

Similar-size kits from other brands

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.