Upper cabinet installation requires marking the wall for level, locating wall studs, and securing the cabinets with screws. Use a temporary support like a ledger board to hold the cabinets in place.

Installing upper cabinets starts with marking a level line and locating wall studs for secure attachment. Use a ledger board to temporarily support the weight of the cabinets during installation. Lift the cabinets into position, ensuring they are level, and attach them to the studs using screws. Fasten adjacent cabinets together for stability, and remove the ledger board once all cabinets are secure.