Insert the spline and clamp the door until the glue hardens.
How to fix broken door panel.
Dribble wood glue into the crack and set a clamp against the blocks to pull the crack closed.
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.
Put extra care so that you do not damage more panels.
Clean up any excess glue before it dries but leave the clamp in place for 24 hours.
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.
The wooden door panels will develop cracks with the span of time which is more often if the panel is not free to expand and contract.