For nearly maintenance-free storage units, vinyl is the preferred siding. Vinyl lacks the visual appeal of wood, but if you own a house with vinyl siding, why not select a storage unit that is also sided with vinyl? However, vinyl will get dirty over time, making it even less attractive. Mold is often the culprit. Take into account the maintenance required to clean the vinyl periodically. Due to their susceptibility to rust, steel storage units should be avoided. Among metal storage units, rust-free aluminum is usually the most sensible choice in siding. Metal siding is hardly the most visually appealing choice.
The small touches make a difference. Some outdoor storage buildings come with French doors or cupolas. You, yourself can add touches such as window boxes, shutters, or weathervanes. Remember, you'll have to look at this outdoor storage building every day of your life for the foreseeable future: Your attention to detail could make the difference between eyesore and eye-opener. On a more practical note, purchase or build a pressure-treated ramp for easy access to your outdoor storage building.