K.I.S.S. IMHO- You guys are making that more difficult than it needs to be.
Think of the base as a cabinet carcass. Visualize that a carcass for a cabinet with drawers is completely open inside , with the drawers suspended between the face and the back panel. I use HD drawers slides to hold lots of weight.... then use rollers to help them slide easier.
Make a face frame that will mount the the front of your base. Add another rail to go between the stiles, to divide between the upper large drawer and the 3 smaller upper drawers. Add 2 stiles to divide between the three upper drawers.
Mount two rollers for each drawer to the face where the drawers will be. They are inexpensive. The drawer slides go between the back of the face to back panel at the rear of the carcass. You can mount them either under of above the drawers. For the large drawer, I would use at least 2 slides to hold the weight of that drawer.
Besides being functional... It will also look more "finished."
"Don't worry, I saw this work in a cartoon once."
"Usually learning skills and tooling involves a progression of logical steps."
Last edited by MAFoElffen; 09-09-2014 at 12:58 AM.