An outdoor shed can protect against the elements to a certain extent, but cannot protect against them all, such as hot and cold temperature fluctuations, insects, and humidity in the air. Some items can’t be smartly or safely stored in a shed such as:
Sensitive electronics
Paint or glues
Food items
Artwork or collections
Personal documents or photographs
Household items that can’t withstand heat such as candles
Leather furniture
And many other items