On 15 Dec 2003, Todd Seidenberg spake unto rec.woodworking:

I am building a changing table for the child my wife and I are
expecting. I've decided to build it with three large drawers on one
side, and a door and drawer on the other, taller side.


I've built the face frame, and I've cut all the pieces for the
carcass. I've also built lap jointed rectangluar drawer supports that
the drawers will rest on.


So the question is, how do I line up the drawer suppoorts from front
to back, so that they are level, and square? Is there some trick to
it? How do I ensure that the cleats that attach to the carcass to hold
the supports are in the correct position?

Put the carcase sides together, side by side, on your bench, with the
back edges together. Measure down from the top on each outside edge, to
the cleat position, and clamp a straightedge across the marks. You can
then glue, or screw, or glue and screw, or fasten the cleats in whatever
fashion you desire, and both sides will match.