\begin{array}{l}L=M_{f} \times J \frac{l \times w \times h}{K} \times \frac{H-h}{h} \times F \\{\text {Where: }} \\ {\text {L = computed top load, lbf }} \\ {\text {Mf = shipping density factor, }} {\mathrm{lb} / \mathrm{ft^3}} \\ {\mathrm{J}=1 ~\mathrm{lbf} / \mathrm{lb} \text { (conversion factor) }} \\ {\mathrm{H}=\text { max height of stack in vehicle, in }} \\ {\mathrm{h}= \text { height of shipping unit or individual container, in }} \\ {\mathrm{K}=1728 ~\mathrm{in^3} / \mathrm{ft^3}} \\ {\mathrm{F}=\text { combined effect factor (use } \\10 \\ \text { for ALI, } \\7\\ \text { for ALII, } \\5\\ \text { for ALIII) }}\end{array}