JB1 Paper Size Dimensions
JB1
728 x 1030 mm
A JB1 piece of paper measures 728 × 1030 mm or 28.7 × 40.6 inches. Cutting it in half will create two JB2 sheets of paper. JB1 is part of the Japanese series.
A JB1 piece of paper measures 728 × 1030 mm or 28.7 × 40.6 inches. Cutting it in half will create two JB2 sheets of paper. JB1 is part of the Japanese series.