Ceiling Grid Generator is a free MaxScript that will quickly create 'metal' ceiling grids commonly seen in commercial interior spaces where acoustical tile ceiling exists.
This script allows you to set custom sizing for the tile openings, the width of the grid, the height of the grid, and also creates the strips along the border for a nice finished look. You can also shift the grid side to side or up and down as well as rotate the grid. You can then preview the final grid, or go back and make more changes before committing to a grid that fits your space perfectly.