Offset Edge Loop Cut I'm trying to get even offset loop cuts on selected edges on my mesh. I tried 2 ways, one with the Offset Edge loop cut, and the other with the bevel. The bevel option keeps the edges aligned perpendicular vertical &amp; horizontal, but moves the rectangles on the mesh. The offset loop cut even I tried with the option even in the settings, makes the lines non perpendicular, and also creates a triangle face when offsetting. What's the correct method to achieve even off cut loops? 

Thank you.
Offset Edge Slide seems to behaves quite irregular. A created vertex in a corner that moves inward doesn't do so consistent with the distance of other vertices and edges, and the outward side doesn't create a vertex. (not sure how to easily change that)

But in this specific case a Bevel in combination with Knife Project might do the job:


Copy the cube object and create the edge offset by Bevel.
Select the edges you like, duplicate them, Press P and Separate by Selection to make them a separate object. Then move them over/above the original object.
In Object Mode select the edges object, then Shift select the original cube object, and (with both objects selected) go into Edit mode.
Press numpad 7 so the knife cut will be projected onto the desired surface at the right angle, in this case downward.
Apply Knife Project. In Edit Mode, 3D Viewport > Mesh > Knife Project.




Result: