"dadiOH" wrote in message ...
Splines? Use a cutoff saw to rip along the joints so that you wind up with
gaps of uniform width (use a straight edge as guide). If the gaps are less
than the width of the saw blade, one pass is all you need. Only cut about
1/8" deep...you want to leave the existing tongue and groove.

Make or have made some oak strips the same thickness as your grooves and
about 1/16 wider than the groove is deep. Glue them in, shave off excess
with a plane and finish.

Even better is to have the splines slightly thicker than the groove and
taper them very slightly. That way they will self adjust for variations in
groove width when you glue and hammer them in.

Hmmmm. Interesting idea. Ever actually tried this with dry oak?
Just curious if a 1/8" wide spline of dry oak would hold together
while I ripped it off with the ol' table saw. Of course, nothing
like trying it...I think I have some oak scrap out in the shop...guess
I'll fire up the table saw and see how fine of a spline I can rip off.