Door frame jamb replacement kits are available for purchase that feature pre cut selections of timber in various sizes and thicknesses.
Wood door jamb repair.
5 start the router and carve out all the wood from damaged area.
8 cut the patch to size on the miter box.
7 set the poplar patch in place and mark it for cutting.
These can be further modified to suit your needs.
Trutrim 4 5625 in x 6 8359 ft pine primed finger joint exterior door jamb.
Carefully remove broken split pieces of wood from bottom of the side jamb.
9 glue and nail the patch to the doorjamb.
If you believe your door frame is made from a non standard wood take the damaged portion to your local hardware store.
Apply carpenter s glue to broken wood pieces and glue them back onto the jamb.
Http bit ly dewaltmultitool porter cable multitool.
10 sand the patch smooth using a random orbit sander.
Hold scrap wood block over the repair and use a hammer to tap the glued pieces tight to the jamb.
Dewalt 20v oscillating multitool my new one.
6 remove the 1x4s then use a chisel to square up the corners of the routed recess.
Repeat to repair damage at the top of the side jamb.