Dribble wood glue into the crack and set a clamp against the blocks to pull the crack closed.
How to fix broken door panel.
Put extra care so that you do not damage more panels.
Although it s very easy to repair the broken wooden panel the user just needs few basic tools rather than replacing the entire panel below are the steps that are very easy to follow in order to repair broken wooden door panel.
Start removing broken panels individually next take out damaged panels.
Depending on the location and extent of wood damage you may or may not have to disassemble the door to carry out a repair i may replace an entire component such as a rail or stile or splice in a new section of a component using a strong splice joint such as a scarf or half lap which also can be doweled if desired.
To fix your door particularly the garage door be sure to slide each of the broken panel out of the doorframe one by one.
Clean up any excess glue before it dries but leave the clamp in place for 24 hours.