It is important to carefully consider all the factors that weaken the stacking strength of a box before products are packed and put into the distribution cycle. A target compression value can be determined by answering the questions on this worksheet. Remember, the bottom box must support the top load over a period of time in which it may be exposed to fluctuations in temperature and humidity as well as other factors that impact performance such as excessive handling, pallet patterns, pallet deck-board spacing and box overhang. The provided loss variables help determine a recommended safety factor. This safety factor is the multiplied by the top load that the bottom box is supporting and a target compression value is calculated. Knowing the target compression strength will help your box designer determine the proper board to use for your box.