Outer string

Outer string

1. The string at the outer and exposed edge of a stair, away from the wall.
2. The string at the outer and exposed edge of a stair, away from the wall. See also: String

outer string

The string at the outer and exposed edge of a stair, away from the wall.
References in periodicals archive ?
The IWA's version involves core courses, plus an outer string of individual subjects, all offered at both academic and vocational levels.