method and relevant equipment for achieving stabilising ventilated coverings for palletised loads with plastic film ; the method comprising a first phase , or step , where the plastic film is applied to the load to achieve a stabilising covering , and a following phase , or step , where the stabilising covering is perforated , making a plurality of holes to aerate the load the equipment for carrying forth the method comprises at least one mobile supporting structure , that alternately approaches , and moves away , from the palletised load , and which has a plurality of perforating punches , each one making a hole in said covering of the palletised load .