UV Mapping basic cube results in rectangles instead of squares I try to UV map the standard cube created when starting Blender (v2.79).

I'm following a tutorial (https://www.youtube.com/watch?v=vbj4d5XL0NA), using Cycles and have made these seams.



The cube size is standard 2x2x2 but move a little in Z-direction.

When I try to UV map it I get the following result.


Why do I get rectangles instead of squares? Is there some way to easily change it to squares?

This is the settings of the cube



Blender file
Maybe changing the UV unwrap Method might help?