Ao Drawing Size. The A0 size has an area of 1 square metre. 420 x 297 mm 117 x 165 inch.
The A0 size is defined as having an area of one square meter 1 m 2. Each smaller sheet size is exactly half the area of the previous size. The largest standard size A0 has an area of 1 m².
Do not use A0.
A0 is a paper size that is typically used for technical drawings and posters. The length divided by the width is 14142. The A0 size has an area of 1 square metre. A0 is part of a set or range of page sizes called the ISO A or ISO 216 standard.
