Glassary - J Jumbo: The largest size of glass we supply e.g. 6000mm x 3210mm. Usually delivered in 20 tonne loads on a special glass-carrying vehicle called a floatliner. Ask PilkingtonGl@ssaryABCDEFGHIJKLMNOPQRSTUVWUseful LinksSpecification ChecklistPilkington energiKare™LiteratureAre we in the glass business or the energy saving business