For example, why does a tape measure have a mark every 16 inches? 16 inches have one, 32 inches have one, and the next 48 inches
Imperial length unit code yard (YD) 1 yards, =3 feet =36 inches, =91.4 cm, half yards, =1.5 feet, =18 inches, =45.7 cm
In foreign countries, wooden houses are built at 16 inches per inch according to building standards. For convenience, the tape measure is marked.
