Grass surface

Grass surface may refer to:
 * generally:
 * Lawn, a area of land covered with short grasses
 * Sod, or turf, the upper layer of soil and grass roots of a lawn
 * specifically, the grass surface in particular contexts:
 * Grass court, in tennis
 * Sports turf, more broadly (e.g. Grass field or Football pitch)
 * a pavement type in airport runways