box3d
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## Name

box3d — The type representing a 3-dimensional bounding box.

## Description

`box3d` is a PostGIS spatial data type used to represent the three-dimensional bounding box enclosing a geometry or collection of geometries. For example, the ST_3DExtent aggregate function returns a `box3d` object.

The representation contains the values `xmin, ymin, zmin, xmax, ymax, zmax`. These are the minimum and maxium values of the X, Y and Z extents.

`box3d` objects have a text representation which looks like `BOX3D(1 2 3,5 6 5)`.

## Casting Behavior

This table lists the automatic and explicit casts allowed for this data type:

Cast To | Behavior
box | automatic
box2d | automatic
geometry | automatic

## See Also

Section 15.7, “PostGIS Box Functions”

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