Most of the time years of paint or caulking the seams around the panels will cause the wood to stick and not allow the panel to expand and contract with the weather.
Repairing a split door panel.
After some 200 years of hard knocks and spotty maintenance in the harsh climate of coastal maine our federal period home s frame and panel doors exhibited a range of problems from gaps and loose joints to outright rot.
To do this you need to glue wooden blocks on both sides of the panel along the split.
Be sure to place the block on areas that will be covered by the pieces of moulding once they are replaced.
Repairing them without compromising their integrity required patience and an understanding of their mortise and tenon joinery.
If you notice that your top garage door panel bends in the middle when.
Once the broken panels slide use a hot glue gun to attach wooden blocks to both side edges of each of the panels.
With a painted door assuming the frame and everything else is ok repairing a split panel is as easy as filling the split or crack with the appropriate wood filler letting it harden and then sanding it down and painting over it to match the rest of the door.
Natural or varnished doors.
How to fix cracks in door panels without taking the door apart wooden doors will develop cracks over time especially if the panels aren t free to expand and contract.