Abstract: An apparatus for stacking containers on a pallet, the apparatus having a conveyor for transporting a horizontal pallet to a loading station, a horizontal plate moving horizontally to and from the loading station in superimposed relation to a pallet in the station, a conveyor which has an elevatable section and transports containers to a stacking station adjacent to the loading station, elements for assembling a row of containers on the section and elevating it together with the row, a clamp adjacent to the station to clamp and support an elevated row while a further row is assembled beneath the elevated row to be raised to the elevated row to form a stack of containers, a pusher for moving successive stacks of containers from the stacking station onto a pack rested on the plate while the plate is at the loading station, and elements for sliding the plate from beneath the pack so that it descends onto the pallet.