[andr0id]

I don't like the 1/4" plywood. It makes the cabinet doors feel light and cheap.

I put a 1/4" rabbet on 1/2" plywood and flip it around so the back is flush with the stiles and rails. Makes for a sold cabinet door and the drawer pulls are through solid ply, not air.

 

[andr0id]

Here's the back and front of a prototype large drawer front I built.

I'm actually not going to use this method for my kitchen cabinets. I didn't like the mismatch between the maple veneer plywood and the maple hardwood. I'll be using glued up hardwood panels for those.

But I'll be building my master bedroom vanity like this since it's going to be painted.

The stile and rails are cut with the Freud 99-762 shaker panel set. You can probably get a cheaper shaker set if you're not going to need long tenons for doors with glass.

Hawk, it looks like your birch panels match pretty nicely. Does that stain up nicely?

 

[andr0id]

What I was planning to do is mortise tenon the rails and stiles. But will my 1/4 said interfere with my stile tenon

Your 1/4" slot down the middle of the rail will go right down the middle of your mortise. I don't think that should be a problem.