LETTERING

Lettering helps to communicate information on drawings. All lettering should be done freehand without the aid of instruments. It must be neat, clear and easy to read. There are many different approaches to lettering, but the one shown below is standard for school use.

The letters and numbers are formed between light construction lines called guidelines, which are drawn 4 or 5 mm apart. Capital letters are usually used, but lower-case letters may be used. Note the following:

• The letters A C D E G H K M O Q R W fill a square space.
• The letters O and Q are based on a circle.
• The remainder (except I) fill about two-thirds of a square.
• Space between words should be equal to the with of one letter, and the distance between letters and numbers must be uniform. Keep the letters in each word close together.