New carpet installed. Now I need to cut the door

[Cary]

space-time wrote:
OK so a hardwood would be more difficult to cut. House is 1988, I bet is hollow core.

Hardwood is actually easier to cut - it won't splinter as easily. Most hollow core doors use a masonite or fiber board skin that splinter badly - need to take more care and score the skin and cut on the waste side of the cut.

House being built in 1988 does not determine whether doors are hollow or solid core.

If it's hollow core, and if you cut off enough that there is no filler left on the bottom, just strip off the face and reuse the filler that you just cut off - use some carpenter's glue and clamp the faces to the filler.