Sliding doors are available in many sizes and come as a single door which slides from one side to another as well as “split” doors which are two doors which meet to close in the middle.
Sliding doors are versatile, durable and usually cost less than their garage door counterparts of the same size. They are easily customizable and can be built to fit pole buildings of any shape and size.
Sliding doors don’t seal tightly and often times allow dirt, dust and critters in. On top of that, they’re not insulated and can cause issues with temperature control. This is something to consider even though for most applications and uses this may not be a problem but it might be if you are using the building as a hobby shop or storing sensitive items.