A compact palletizer including a skeleton, stretch wrap system, and a subassembly. Components of the skeleton are constructed of aluminum, which provides advantages over the prior art in terms of strength, rigidity, weight, and cost. The aluminum may be pre-tensioned or prestressed to provide these advantages. The subassembly is preferably mounted to the side of the skeleton. The compact palletizer is readily portable, and robotic elements of the compact palletizer do not need to be reprogrammed after transport, so installation time is substantially reduced compared with prior art palletizers. A compact stretch wrap system further allows for wrapping palletized products within the compact palletizer.