How to Punch a Hole in a Plane I have a face that is 4 by 11 units. I want to punch a perfectly square hole in that plane, about 3 by 3 units. How do I do this?

I do not want to use any subdivision whatsoever.
Make a plane with the dimensions you need to cut.



In object mode select the cutting object first then while pressing Shift select the object to be cut.

Set your view to orhtogonal, go into edit mode, press the Spacebar and type Knife Project



Th Knife Project tool will make a hole using the shape of the selected object.