Re: Sliding draws under sink
We did ours like Ron's, with the tracks underneath the drawer, because we had lots of height available, compared to width, and the slide cost you somewhere in the 3/8" apiece, wherever they are. Didn't want to lose the 3/4" in width, and don't miss 3/8" in height at all. The slides have holds built in that hold them in, not enough to counteract driving forces, but the latch on the door is tight enough to keep them in place, as they are right up against the closed door. Ours are also unmitred, pin nailed with urethane glue, and made out of baltic birch plywood. 3/8" on the sides and 1/4 on the bottom.