alphabet of lines
what are extra-heavy lines located near the edge ?
border lines
what is RO
rough opening
represent the main outline of the features of an object
object lines
what is GALV
galvanized
are composed of a series of short dashes
hidden lines
what is AFF
above finished floor
are extra-heavy lines made up of long dashes alternating
property lines
what is LAV
lavatory
are thin lines used to indicate centers of objects
centerlines
what is DS
downspout