Cellio, Armstrong's open cell metal ceiling, is suitable for all types of areas and is available in a number of cell sizes.The monolithic appearance of Cellio is achieved by the integration of the grid into the ceiling design. As Cellio is installed on Armstrong Prelude 15 mm exposed grid it is compatible with all Armstrong MicroLook ceiling tiles. This concept allows for unlimited design scope and flexible functional benefits. Detailing at the junction of wall and ceiling is a good example of this flexibility. Cellio is particularly ideal for refurbishing projects where a 15 mm exposed grid is already in place or in large areas where a perfect cell alignment is required.