Extraplanar Places

An extraplanar place is somewhere that exists outside of any plane, without regard to physical or metaphysical dimensions. This usage is most often applied to magic that creates unique states or dimensions beyond the reach of any plane, and is sometimes synonymous with (or incorrectly in place of) the terms extradimensional or nondimensional. The term is also used to describe demiplanes not encapsulated in other planes.

For example, a bag of holding stores objects in a tiny extradimensional space. While this space is naturally also extraplanar, the term is less specific and should be avoided in favor of extradimensional.

[Countless extraplanar realms, such as pocket dimensions, exist outside of other known planes, and many are accessible either through specific a portal or spell.

In certain instances the term extraplanar may refer to an object or location that exists in multiple dimensions at once. For example, The River Styx winds through the entirety of The Underworld and though it is not exactly it's own dimensional plane, its interdimensional nature makes it difficult to categorize and therefore is considered extraplanar to a native of any of the planes and demiplanes it touches.