Figuring out how to install kitchen cabinets is not too hard. The longest and hardest part of it is figuring out where they need to be screwed into the wall. Generally, you always want to have help for safety reasons. If you miss a stud and the cabinet falls, it can be dangerous and might pull the sheet rock from the wall down with it. You will want a stud finder because if you accidently miss a stud, you should be prepared to catch your cabinets as they fall. You can find a stud finder for about $10 for a generic brand from Walmart or a nice brand such as Franklin.