Choosing a prefab steel building means balancing footprint, height, price, and how you plan to use the space. Do you need a long, low storage run for self-storage units, or a taller, shorter building for a garage and workshop? Here's how two Duro steel buildings compare.
Quick verdict: If your priority is a long self-storage layout, the DURO Steel Mini Self Storage 20x100x8.5 offers the length, with a listed price of USD 16,778, but roll-up doors are not included. If you need a garage, shop, or residential space with more vertical clearance, the 20x40x16 DuroSPAN building provides the height with ends walls included, at a listed price of USD 9,995. The right choice depends on whether you value storage length or workshop height.
| Product | Listed Price | Price Bar | Key Dimensions | Key Detail |
|---|---|---|---|---|
| DURO Steel Mini Self Storage 20x100x8.5 Metal Building Prefab Structure | USD 16,778 | 20 ft W x 100 ft L x 8.5 ft H | Engineered stamped drawings included; roll-up doors not included | |
| 20x40x16 DuroSPAN Prefab Steel Building Kit Garage Shop W/ Ends Walls Included | USD 9,995 | 20 ft W x 40 ft L x 16 ft H | Ends walls included |
Where each wins: The DURO Mini Storage is the pick for long, linear storage with multiple compartments. The DuroSPAN Garage Shop wins for workshop or residential use, offering greater interior height and included end walls. The listed price gap between them is USD 6,783.
DURO Steel Mini Self Storage 20x100x8.5 Metal Building Prefab Structure
The DURO Steel Mini Self Storage 20x100x8.5 Metal Building Prefab Structure is a 20-by-100-foot steel building with an 8-foot-5-inch eave height. Its listed specifications include a 30 PSF ground snow load and a 115 MPH wind load, and the package comes with an erection manual, a full set of drawings, and an anchor bolt plan. It is set up for mini self-storage with multiple 9-foot-wide by 7-foot-tall roll-up door openings, but the roll-up doors themselves are not included, so factor that into your project. At the higher listed price of the pair, this building suits a site with a long footprint and a need for multiple storage bays.
20x40x16 DuroSPAN Prefab Steel Building Kit Garage Shop W/ Ends Walls Included
The 20x40x16 DuroSPAN Prefab Steel Building Kit Garage Shop W/ Ends Walls Included is a 20-by-40-foot building with a 16-foot height. The G-SERIES design is versatile for larger offices, retail spaces, warehousing, workshops, and cottages, and end walls are included in the kit. At the lower listed price of the two, this building's 40-foot length is far shorter than the 100-foot storage building, so it will not suit a long self-storage run. It is the better fit for a garage or shop that needs taller walls and a more compact footprint with end walls already in the package.
Final choice by use case: For a long self-storage building with many bays, choose the DURO Steel Mini Self Storage 20x100x8.5, accepting its higher listed price and the added cost of roll-up doors. For a garage, shop, or residential space that needs headroom and comes with end walls, the 20x40x16 DuroSPAN Garage Shop is the practical pick at its lower listed price.
