Moving an object through a doorway to another room

[TallRoger]

I ran into a problem trying to move an object (cabinet) through a very large doorway into another room.  There was more than enough space, but it would not let me move it through or enlarge it so that it went through the door way.  I don't know if it was the different room or the doorway.  I tried holding the control key down while doing this, but it made no different.  I have Home designer but am thinking of upgrading to architect.

 

Thanks in advance!

Roger