A datasheet's aisle width is for one standard pallet. Pick one of 40 Hyster, Yale and Linde forklifts and your own load, and get the right-angle stacking aisle it needs from the manufacturer's published VDI 2198 dimensions. The formula, every input and its source are shown, the form works without JavaScript, and a free embed code lets warehouse and logistics sites put the calculator on their own pages.