When deciding on a sander keep in mind what kind of projects you will be using it for.
A belt sander has a continuous belt of sandpaper wrapped around two rollers. The belt spins rapidly around the rollers, enabling the tool to remove a large amount of wood — quickly.
Belt sanders are best suited for heavy-duty jobs at the beginning of the sanding process, like smoothing out decks, porches or floors. Choose a sander with at least a 21” belt and a width that you feel comfortable with. The wider the belt, the heavier the sander.