The number one mistake, or omission is not noting which side, or sides, of a cabinet will be exposed, and thus will need a finish side. Conestoga's cabinets come standard with UN-FINISHED sides, and they offer 2-type of finished sides, "EXPOSED-END", or "FLUSH-END". You need to let us know which type of finish side you prefer and the side you want it on each cabinet. Click here to see the difference between an EXPOSED-END and a FLUSH-END For example: If you have a wall cabinet with BD doors and you want the right side finished, then you could list it as followed: W3030BD - EXP RIGHT, or EXP-R, or FINISHED RIGHT, FL-L, OR FL-R, OR FL-B, etc. If you miss listing one, and we do not catch it, it is not the end of the world, as you can order a 1/4" thick skin and easily apply to an un-finished cabinet side, in fact, some cabinets are figured using skins, depending on the wood spiece. The number 2 mistake, is when giving sizes, the width is always first, followed by the height, then the depth, so if you wanted a custom size wall cabinet, or any cabinet that you do not know the exact cabinet code, you could list the cabinet size you want as followed: wall 30.5 x 30 x 12.5