Hi there,I getting a new.kitchen and I need.to cut my end panels and.I get to that point where I don't know.of I.should cut them on top,under the new worktop.or down at the floor.level.and let the cut sit on the floor!I am.afraid to not get the destroyed by mopping....!any ideas or suggestions how can I seal.thenm.or how is properly this.done?many thanks