Yardstick n. : A stick three feet, or a yard, in length, used as a measure of cloth, etc.

Example:
I need to know the mesurment of the short side of the Yardstick?

Taxonomy
Yardstick, free encyclopedia, three feet, markings, search, Unsourced, wooden boards, intervals, the metric system, Imperial system, one side, sticks, pointing devices, posters, projections, comparison, judgment, Personal tools.

Defination from the web:
yardstick is a tool used to physically measure lengths of up to a yard (0.9144 meters or three feet) high. ... The term "yardstick" is also used metaphorically in reference to anything which serves as a test or standard of measurement, comparison or ...