After cutting your interior hollow core door to clear a rug you will be left without blocking. This makes your door not as solid and I show how we replace this quick and easily.
I've got an odd one in a custom home right now I'm replacing all the original golden oak stuff with new doors/trim/casings, a couple of the doors are odd sizes. The new doors have panels and whatnot but are still hollow core. Trying to figure out if it's possible to remove a section from the center to shorten a door and keep the panel intact. Obviously there will be a line there from the cut mark which I'll have to fill somehow but I need to shorten a door from the standard 80 inches to 67 inches, which is basically the exact height of the inlaid panel so if I take whatever 8 inches off the bottom and 5 off the top it wouldn't look right. Not sure how to take from the middle though.
I'm in the middle of a project doing this I cut almost 2 in off the bottom without a problem so my doors must have been better than the average cutting the sides off if it's a hung door you got to remember you're going to remove the cutout for the hinges
I'd guess that he used a blade with more teeth than for rough cutting. If you can't get one, you could try using painter's tape to tape along your cut line to try to reduce tear-out or splintering (especially if your door has veneer). If your door does have veneer, use a straight edge and utility knife to cut through the veneer along your cut line first. This will reduce the likelihood that you'll mess up the veneer while cutting
