Thank you for taking time to review our Smooth Pro White Ceiling tiles. our Genesis ceiling tile appears to sit higher on the ceiling grid corners, it is likely because of the type of ceiling grid you are using. There are two main types of ceiling grid systems: a stab system, and a hook system. A stab grid system provides additional stability as the cross-tee overlaps the main beam to prevent twisting. This feature often qualifies stab systems for a Seismic Rating. A hook grid system is often a lighter-duty grid. All stab grid systems, like Classic X Cliq and USG Donn DXL and Armstrong Prelude XL use an overlap design at the cross-tees. This causes about a 1/16-inch raising of the ceiling panel at the corners. This is the case for all ceiling panels, including Genesis, mineral board acoustic and vinyl-clad gypsum. One method to reduce the raised tile problem with stab grid systems is to use hold-down clips in the ceiling tile corners. After your tiles are installed in the grid, identify which corners need to be clipped. From the top of the grid, simply push the clip onto the spline so that it presses the corners of the tile down. Our hold down clips are available for any installation needs in one of these systems. If you have any questions please feel free to reach out to us at 800.434.3750. Thank you!