plaster ground

plaster ground

[′plas·tər ¦grau̇nd]
(building construction)
A piece of wood used as a gage to control the thickness of a plaster coat placed on a wall; usually put around windows and doors and at the floor.

plaster ground (usually pl.)

A wood strip, metal bead, or screed attached around a door, window, etc., as a guide for plastering to a given thickness; also serves as a fastener for trim; a ground, 2.