Walmart, Amazon, Lowes, Target and numerous third party logistic (3PL) firms are shifting to pick modules as their warehouse arrangement. A pick module consists of an arrangement of racking with catwalk levels supported from the racking supports on about 10 foot vertical increments so that employees (or robots) can pick the product from a shelf and transport it to the shipping area. Photo 1: Pick Module Top Level In the photo above, the “floor” (more properly designated as a