Draft paper is a kind of paper used in the drafting of technical drawings by using a pencil or a pen. There are many different thicknesses with various surfaces; the most common sizes are A0, A1, A2, A3 and A4. Drafting paper is usually heavier and more durable than regular copy paper, and it has a smooth, textured surface that is ideal for drawing. It is also transparent, which allows the drafter to see the previous layers or objects drawn without needing erasing.
Some draft paper, like tracing paper, is translucent and can be mounted onto a light table for easy viewing. When used in conjunction with a light table and drafting film, corrections and revisions can be easily made by erasing marks, taping over errors, or replacing sheets of film without having to redraw the entire sheet or object.
Drafting paper is commonly used in engineering, architecture, and other technical fields where precise drawings are required.