Then pack the hole or crack with paper towels and fill it in with expanding foam insulation.
How to fix hollow core door hinges.
Step 1 remove any loose pieces from around the hole.
The hinge mortise is a shallow recess the hinge fits.
This will provide a ledge of sorts for the foam insulation to sit until it is dry.
Step 1 remove damaged door.
Long screws can be used if the door is solid wood but shorter screws are used for a hollow core door or a solid core door with a particleboard core.
Next we cut sections of a 2x4 to 1 3 8 inches which was the inside width of our door.
After drilling a hole to accommodate the dowel and applying glue to both the hole and the dowel use another dowel of a larger diameter to set the smaller dowel into the hole.
This method puts the top of the dowel flush with the surface of the hinge mortise.
Particle board is used in hollow core doors and its holding ability is limited too.
Be sure the hardware reinforcements are sound checking the welds hinges and hinge reinforcements.
Next let the insulation dry completely before trimming away the excess with a knife.
Use insulating foam sealant to fill the hollow area behind the defect in the door panel.
Clean the dried glue out of the hinge mortise using a chisel.
Use your utility knife if needed.
A simple method of using golf tees to fix holes that have been stripped out and are to big so the screws will not tighten up the hinge to the door or jamb.
Scrape the dried glue from the side of the door using the side of the putty knife.
To repair a damaged hollow core door start by cutting away any loose or broken wood around the damage using a utility knife.
If any of these areas appear to be damaged or unsound a new frame is probably necessary in order to ensure proper hanging of your new hollow door.
We needed about enough of these sections to fill the 3 inch depth until it was flush with the mortised hinge opening.
Inject a liberal amount of foam to be sure the entire area under the damage is filled.
Step 2 stuff some paper towels down inside the hole.
Insert the tube into the damaged area so that the foam sticks to the back of the other side of the door and fills the void completely between the door panels.
Stand on whichever side you hinges are located.
A squeaky hinge may only need a squirt of the right lubricant.