Three fold is called also name Tri-Fold Sizes: DL 3.9″ x 3.9″ x 3.9″ x 8.3″ / 97mm x 100mm x 100mm x 210mm (standard) A5 5.8″ x 5.8″ x 5.8″ x 8.3″ / 148mm x 148mm x 148mm x 210mm A4 8.3″ x 8.3″ x 8.3″ x 11.7″ / 210mm x 210mm x 210mm x 297mm Weight: 85gsm, 105gsm, 130gsm, 160gsm (recommended)
