@thekitchenguynyc: Relying solely on standard drywall anchors or guessing stud locations when installing heavy upper cabinets is a recipe for disaster during a kitchen renovation. Standard builders often skip dedicated wall blocking, leaving heavy upper runs vulnerable to sagging, shifting, or completely tearing away from the wall over time under heavy weight. When I plan an installation as a kitchen designer, I mandate structural wooden blocking behind the drywall, installed strictly according to a custom blocking diagram prior to cabinet mounting. Anchoring heavy upper cabinets directly into solid wood blocking guarantees maximum weight-bearing support, ensuring your millwork remains permanently level and secure. The payoff is total structural integrity and peace of mind: your upper cabinetry can easily support heavy dinnerware and glassware without risking wall failure or costly installation delays during your kitchen remodel.