To improve the prior art to increase the palletizing accuracy and efficiency.

This is a method and an apparatus for palletizing rectangular packages receives in random size and weight. A 'corner'-based modeling system is used to assist in evaluating possible placements of packages accumulated on a line conveyor, and a placement evaluation process is used to select a 'best' package placement based on heuristic analysis. Statistically-based measurement and comparison is used to assist in the evaluation process.