Abstract: The present invention comprises a computer program which displays a number of objects in some form of organized, often hierarchial, fashion commonly known as a categorization table. In summary, the ordering program displays a categorization table organizes data under successive and expandable levels of categorized headings, assigns the appropriate vendor specific names, SKU codes, part numbers, universal product code, and/or bar codes, and then transfers this specific information to a merchant or vendor for processing of the order. The programs allows the user to manipulate the data or to select objects for appropriate actions (starting a program, printing a construction material supply list, transferring a generated list(s) to the vendor/merchant, etc.). Once the categorization table is completed, a specific report can be generated from the program.