LEGO® DUPLO® Large Green Building Plate is a great supplement to any LEGO collection and is the perfect starting point for your inspired, open-ended building play. LEGO® DUPLO® Large Green Building Plate is a great supplement to any LEGO collection and is the perfect starting point for your inspired, open-ended building play. • Measures 15" (38.1cm) x 15" (38.1cm).