The 30 height cabinets will top align at 84 high 36 height cabinets will top align at 90 high and 42 height cabinets will top align at 96 high.
Kitchen cabinet height to ceiling. Most homes built in the last 50 years have kitchen cabinets that are 32 or 36 inches tall installed so there is a gap of 1 to 2 feet between the tops of the cabinets and the ceiling. Most standard base cabinets are 34 1 2 in height. Tall kitchen cabinets are most typically 84 or 96 inches tall.
We often have to combine a taller and a shorter upper cabinet to get the cabinetry to go all the way to the ceiling. And there is good reason for this as wall cabinets with these proportions are fairly accessible to most people standing on the floor or using a short stepladder.