This guide will focus on the purchase of a used prep station for the commercial kitchen setting.  Let's talk a little about commercial preparation stations.  These units have a refrigerator underneath the counter area and a hooded area that covers pans in which you can put cold prep items.  For example if you were making pizza you would put your pineapple, tomato sauce, cheeses, mushrooms, olives in this area.  In fact if you've ever been through a Subway sub shop you will have seen a variation on this in their line.  Their sandwich sub prep stations are actually part of their serving line. 

Favorite sizes of sandwich prep tables are 48, 60 and 72 inches with between one and three doors.  These standard sizes are often found in the used restaurant equipment market.