After giving this a bit of thought, I'll bet you could do it
realatively cheap. First of all, if you have the cheap plastic coated
doors, I would just leave them. Your never going to like the outcome,
I can promise you that. If you have Oak, Luan, Birch, or even Pine,
then here's an idea. Not raised panel but indented panels. I'm going
to talk about oak doors just to keep it simple
First of all you need to determine the measurements of the
panels. To do this you need to layout the rails and styles of each
door. Keep all your styles at 4" (measure 4" in from the hinge side
and 4" from the knob side). Your top and next lower rail can also be
4" your middle rail 7-8", your choice, and your bottom rail at 8-9"
your choice. You will be cutting the rectangle and square parts out.
Here you will need to make a filler to go between the door skins.
Use pine or what ever cheap lumber you have lying around. You will
also need to remove more of the filler to accomadate this pine. Glue
the pine in and clamp. Now make your panels. You can use 1/4, 1/2 or
3/4" plywood for the panels. You will need to make a frame for the
panels. This can be out of real oak, or oak plywood with edge banding
veneer put on before your cuts.
Since we are talking about interior doors you will need to rip these
to 1 3/8" to match the thickness of the doors. (measure your doors
first) Cut the ripped parts to length using a 45 deg. corner. Dado the
centers to accomadate your plywood. Cut your panels to size to fit
into the frame. Insert your panel into the frame, glue and nail. Once
the glue dries these panels should fit into the holes you cut in the
door. Hopefully they are tight, if not shim as required to center and
line up with each other. You should be able to shoot a couple of brads
into the pine that you put in the door holes earlier. Now, find a
suitable material for the casing of these panels. Screen stop comes to
mind. If you can't find any, rip some solid oak to 1" by 1/4" thick
and install on the frames like you would door casing. Stain to match
and you will have a very custom good looking door.
You can use any thickness you want for the panel, maybe 1/4 inch. Get
a sheet of plywood, (oak plywood if you have oak doors) and rip the