The latest version (20150404) of the floor board addon adds a border option to the square pattern. Besides parquetry this might come in handy for wooden patio tiles and the like
The floor boards addon has quite some history on this blog and elsewhere so for convienience I've gathered the most important links here.
The addon is available on GitHub. (Click to download it to any location on your PC, then in Blender go to File->User Preferences->Addons and choose Install from file. If you have a previous version of this addon you should not forget to remove the addon first by locating it in the list of addons and clicking Remove. The addon can be found under the Add Mesh category.)