Almost everyone has purchased a shelf, table, or chair from a large box retailer. Typically, this furniture arrives in flat boxes with ambiguous directions and, nearly invariably, missing components. Screws, nuts and bolts, as well as brackets and other hardware, are required for the assembly of furniture. When putting together furniture, one must be meticulous to verify that all of the necessary components are there and that nothing is missing.
The whole process of assembling furniture is daunting and you might just be wasting your time screwing it up. Leave it to the pros.