STD 1 : 2 feet X 2 feet X 20 mm thickness. STD 2 : 4 feet X 4 feet X 20 mm thickness. STD 3 : 4 feet X 6 feet X 20 mm thickness. Packaging: 50 Slabs (60 cm X 60 cm X 2 cm) /wooden crate, 1 metric tones/crate. Packing: 4600 square feet ( 414 square meter ) per 20 feet container.