No - A4 paper is the size most used in the world. It is used as the classic paper sheet in all industrialized countries, and beyond, except in North America, which has retained different standards. The dimensions of A4 is 297 x 210 mm or 11.69 x 8.27 inches.
By Jim Glunt on February 19, 2019, you commented that the product's weight 16.2 lbs and that that doesn't matter for the weight because it's the paper that is being weighted. That make NO sense. If the paper weights 20 lbs. then the box should have weighted more than 16.2 lbs. Do the math and stop B.S.ing customers, please.