Shredders vary according to how they are used and the types of materials that will be destroyed.

Personal Shredders
Are designed for infrequent use by one person. These models typically require a strict diet of paper in order to avoid jams and breakdowns. Personal models take 2-8 sheets at one pass.

Commercial Grade Shredders
Are much larger units, designed to handle many more documents. These models are equipped with higher power motors that allow them to chew through paper for longer periods of time. Office grade units can usually be placed in a hallway or mail room. Due to the noise and size, heavy duty models are most often found in a warehouse.