A drywall grid - is a framing structure installed below a structural ceiling or existing substrate that provides a level, stable surface for drywall or ceiling board installation. Unlike a suspended acoustical grid (which holds ceiling tiles) a drywall grid is designed to receive drywall panels that are screwed directly to the framing and then finished with joint compound and tape for a smooth, painted surface.
Drywall grid systems are common in commercial tenant improvements, corridors, stairwells, mechanical rooms, and anywhere a smooth, hard-lid ceiling is required rather than a drop ceiling system.

