ANSI standards for drawings may be found at the official American National Standards Institute website, ANSI.org, by entering the keyword "drawings" on the Web store page. The page offers standards for engineering drawings of all types.
ANSI drawing standards may be ordered individually or as part of an industry-specific package. Drafters may search for drawing standards on the ANSI website by engineering discipline or by number. The site classifies drawings by the ANSI reference number, the International Organization of Standards, or ISO, number and the American Society of Mechanical Engineers, or ASME, number and by industry. Standards for the physical sizes of hard copy engineering drawings are available on EngineeringToolBox.com.