How to place cubes around in a square shape As it can be seen in the image, I am trying to place all these cubes in such a way that forms a square shape. I don't know how do I place these cubes by evenly spacing out the distance between each cubes. Can somebody please tell me and give me step by step instructions please?
You may use Dupliverts to achieve it.


In Edit Mode add a plane and subdivide it, then delete the faces. In Object Mode add a cube and scale it as you like. 


In Object Mode parent the cube to the plane (Ctrl+P-->Object).


Select the plane and go to the Object header-->Duplication panel and push the Verts button.


Finally with the plane selected press Shift+Ctrl+A to make the duplicates real meshes.