What is the minimum void depth for installing suspended ceilings?
The answer to this question is dependent upon two factors, namely the tile and grid system used, and the practical consideration of the installer being able to get his hands into the void to connect the hangers to the main runners. For ‘lay-in’ tile systems, where the tile is offered up through the grid before being dropped into place, and conversely removed, about 150mm from the soffit to the top of the main runner bulb, is necessary. For ‘Vector’ edge tiles or Orcal clip-in tiles, which are installed from below the grid, less ‘manouvering’ height is necessary, so grid installation considerations will dictate. Of course services in the void, such as ducts, pipes or electrical trunking may overide these limits.
