1 x 4s have been cut down. Found two sections 26" long without issues. The rest were cut to 13-1/2" long...then all the rebates were milled.
rails top and bottom.JPG
3" bottom rails, and 2-1/4" top rails. rebates on the ends are 3/4". leaves about a 1/4" left. rebate down the sides are 1/4" deep, by 1/2" wide....

Alos milled 8 mid rails..
mid rails.JPG
Details?
mid rail details.JPG
Used the same thickness plywood, to set the sizes..
IMG_7547.JPG
Will be cutting panels to the correct sizes, as soon as I figure them out. Add a webframe..
full layout.JPG
Will use that to help lay out the drawer openings.
Too many Doctor visits this week....might be a little while, before I get any more shop time..
Stay tuned..