Use 3/4 of 3 pallets for the back, the work top and the bottom shelf. Remove the boards of the remaining 1/4 pallets to fill in the shelves and make extra shelves on the back. The back legs are 5’ish 2x4s, and the front legs are 3′ 2x4s. I used peg board for the back and drawer bottoms. I spent $10 on the cool old corner brackets!