Fix #1: Tighten the Hinge Screws
Screws magically work themselves loose over the years. If your door rubs near the top or drags on the floor, use a screwdriver, not a drill, to tighten the screws. With a drill, you’re more likely to over-tighten the screw and strip the screw holes or chew up the screwheads.
Pull the hinge away from the door frame and place 1mm shim of cardboard or timber to fit behind hinge. Screw the hinge back and check door operation. It should have lifted the closing bottom edge slightly. If the door still scrapes the floor, try a second shim.
How do you fix a metal door that rubs on the bottom?
Remove the wood or foam core from the piece you cut off, then apply construction adhesive to the strip of metal skin. Clamp the metal to the base of the door and allow it to dry before reinstalling the door. You may need to cut a piece of wood or foam core to fit within the base of the door for the skin to attach to.
How do you fix a misaligned door frame?
Instructions
Tighten the Hinge Screws. Replace the Hinge Screws. Drive a Screw or Two Into the Door Jamb. Tighten the Strike Plate. Move the Strike Plate Incrementally. Move the Strike Plate Farther. Inset the Strike Plate Deeper Into the Jamb.
Why is my door rubbing?
Always start adjusting from the top hinge. If the jamb rubs on the top then you will need to tighten the top hinge. If, on the other hand, it rubs against the lower side, you must adjust the lower hinge. The door may rub against the entire side frame; in these cases, you must adjust all the hinges.
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