Paper size you should know ❗️

chatstickforbrand
Sep 5, 2023
3 min read

Paper size you should know ❗️

The paper that we use in our daily life comes in many sizes. The size that everyone uses the most is A4, which is a common size. It is popularly used to make books, reports, and various documents. Today, let's learn about the standard sizes of paper that we use for printing both in Thailand and abroad.

📍Standard for paper size ISO 216

The ISO 216 paper size standard was established based on the German DIN 476 standard. The highlight of this standard is that when paper of the specified size is folded in half, The size of the folded paper remains proportional. (ratio of height to width) is the same as the size before folding. And if folded in half again The new size still has the same proportions. The benefit is when the paper is cut and divided for use according to this standard. No scraps will occur if there is work that needs to be minimized. to achieve results according to the principles specified Calculations were made and it was found that the ratio of height divided by width is equal to Square root of two (1.4142) and also found that the width and height when folded in half always decrease to 70.7% from the original.

which most countries use today Except mainly the United States and Canada. Standard paper sizes have a characteristic ratio of 1 : √2. This ratio has specific properties: When cutting or folding in half widthwise The paper size will remain in the same aspect ratio. The paper size of each number is half the area of the previous number.

📍Paper size standard, set code A

The A series paper size standard is a standard in the ISO system, which is a metric system. It defines the code A0 to have an area equal to 1 square meter. From calculation, the size of A0 is equal to 841 x 1189 millimeters. When divided in half from the said A0 size, the new size. that has been set as code A1, if you keep dividing it, you will get codes A2, A3, A4 .... this set of standards It is a standard that creates familiarity and is widely used, especially A4 size, which has a size of 210 x 297 millimeters, which is the size of the most commonly used photocopy paper. Letterhead, books, magazines, etc., and if A4 size paper weighing 80 grams per square meter The weight of the paper weighs exactly 5 grams, making it convenient for users to determine the weight of the pile of paper by counting the number of sheets.

📍Paper size standard, set code B

This B code standard is less familiar than A code. The sizing method in this code begins by having the B1 code sized between A0 and A1 and having a height of 1 meter, making the width equal to 0.707 meters ( comes from the requirements height divided by width is equal to the square root of two). Therefore, the size of code B will have one side. half or a quarter Or one eighth of 1 meter and so on. The works that are popular with this code standard are posters, books (using B5), passports, document envelopes.

📍Paper size standard, set code C

This code is used to determine the size of the document envelope. At the same number, the code for C is larger than A but smaller than B, so A4 letter paper will fit into a C4 envelope and a C4 envelope will fit into a B4 envelope.

📍Examples of application of Paper A and B

- A0,A1

Poster paper, used for drawing engineering or architecture plans

- A1,A2

Use as flipchart paper for writing presentations and charts.

- A2,A3

Used as drawing paper, paper for charts and table data.

- A3,B4

newspaper page size

- A4

Used as poster paper, forms, magazines, used for printers and copiers.

- A5

Notebooks, flyers, receipts

- A6

postcard

- A5,A6,B5,B6

General book size

- A7

card

- A8,B8

Card size

- A10

stamp

We will order paper for printing. We should know the standard size of the paper that we want to use for printing. in order to be convenient for calculating the amount of paper that we will buy

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