Doors – How to fix a Front door sticks out (from the inside slightly)

1. The loose base is causing catching at the opposite corner because the entire door and frame is pivoting around the upper hinge and nearby framing that is presumably still attached firmly to the jack stud behind the frame. As the bottom left part of the frame swings out, the upper right of the door is moving up to where it hits against the frame there.

2. Take a look at the loose part of the frame and see if the nails attaching it to the jack stud have pulled loose. The hinge side of the door frame is often attached directly to the jack studs (no shims) so securing it may simply be a matter of driving in some brads or finish nails nearby.

   If there were shims behind the frame, they may not be where they were originally; then you'd probably have to remove the door trim to get some more installed in the gap, then drive nails through the door frame, shims and studs.

The problem with the hinge pulling out is caused by the mortise being too deep either on the door or frame. Look at both sides of the hinge and determine if one or both are recessed below the surface of the wood stock. Remove the offending side of the hinge and shim it out flush to the wood surface with some solid cardboard cut to fit the mortise. Reinstall the hinge over the shim. This should allow the hinge to close completely without putting pressure on the hinge screws.

As far as warping is concerned, that is not normal. Would have to see a pic or have a better description of the problem in order to address it. You mentioned cutting .25 inch off a side. How did you do that? If not cut perfectly straight, that may be a factor in your hinge problem.