| Keyboard Shortcut | Menu Shortcut | Menu Location |
| B | Alt+R, B Alt+C, X |
Raster -> Box Vector -> Box |
The Box command draws an unfilled rectangle. When Image Mode is active, the Box command draws a box of pixels using the foreground color. When Vector Mode is active, the Box command draws a vector rectangle.
Activate the Box command. Click once to set the first corner of the box. Click again to set the opposite corner. (Or you may click and hold for the first corner, drag, and release at the opposite corner)
Note: In Image Mode, if there is an active selection region, only the part of the box that overlaps the selection will be drawn.