Find out what type of material was used to make your roll top desk. Some roll top desks may be made of metal or a hard plastic, while others may be made of wood. If your desk was made of wood, find out what type of wood was used. Higher quality wood, especially oak, typically equates to a higher quality roll top desk than one made from cheap plastic or particle board. The material used to make the desk also signifies its overall durability.
Measure the surface area of a roll top desk. The surface area size of a roll top desk is one piece of information that tends to be relative, but can help determine the quality of the desk based on your personal preferences. If a desk is too small, for example, it may not meet your specific needs, which would make it low quality for you specifically. Another person may be completely satisfied with an identically sized desk.
Find out whether a particular roll top desk needs to be assembled or if it comes all in one piece. Desks that need to be assembled tend to be lower quality units, even though they may actually serve their purpose as a desk perfectly fine. Roll top desks that come in one large piece typically were expertly made and assembled.