297mm
Figure 2.1 A4 and A3 standard papers
Title block is a rectangular frame that is located at the bottom
of the sheet. It is recommended that space should be
provided in all title blocks for such information as description
of title of the drawing, dates, designer (drawer), and name of
enterprise or educational institute, size (scale)
A4
210mm297mmA3
420mm
A3 Title block
Boarder lineTitle block
A4
Boarder line