[header] How to build a cabinet [title] Plan your cabinets. [step] Standard counter depth is 25 ", which the cabinets themselves being 24 " to allow for a 1 " countertop lip. Standard counter height is 36 ", with the cabinets usually being around 34.5 " tall to allow room for the countertop material. 
For upper (or wall) cabinets, add 18-20 " to the 36 " counter height. Any space left over between that distance and your ceiling is fair game for upper cabinets.