do new cabinets get installed on top of existing laminate flooring
I believe the OP has commented he is having cabinets for an entertainment center put in, so possibly not a kitchen. Regardless, I don't think he is looking to put a new floor in. The best installation process will be to cut the flooring, remove, install cabinets WITH an expansion gap around the perimeter, and then run some moulding over the gap. On the up side, if you do want to replace the floor in the future, you wont need to remove the cabinets. Pinching the floor under the cabinets would likely lead to buckling and distortion of the laminate floor.