Whether it is for a replacement or an upgrade, there are plenty of choices available when it comes to door hardware. For indoor use, there are two main types of door locks that are used. Bed & bath door locks come with a locking mechanism but do not include a key. If accidentally locked, they could be unlocked with a screwdriver or an ice pick. The other types of door locks are known as dummy locks, and they are installed onto door that do not need to be locked but only require a pulling action. Closet, bi folding, and French doors are some examples that use dummy locks.