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How to build kitchen cabinets
Design your cabinets.
Cabinets are usually about 24 " deep to allow for a roughly 25 " deep countertop with a slight lip. Cabinets are also usually 34.5 " tall, allowing for a 36 " overall height once the countertop material is added.

Available options: (a). Just because a cabinet is enclosed does not mean that it's deep enough. Make sure your oven and microwave is sturdy enough for your cabinet materials.; (b). A somewhat longer countertop will allow you to reach every inch of the counter surface without damaging the wood. Sand the surface of your cabinets with 150-grit sandpaper.; (c). Ideally, a finished kitchen cabinet should be at least 20 " (30 cm) long and 20 " (30 cm) wide. If your cabinets are twenty " or 24 " plus 37 ", then you need at least 18 " or 36 ".; (d). To calculate the size of wall (or upper) cabinets, add 18-20 " to the counter height. Subtract this from the overall height of your ceiling and you will have the range you can work in for cabinet size.;
(d).