Why do many offices cover drafting table tops with smooth vinyl surfaces?

The choice indicating that smooth vinyl surfaces provide proper density for effective drafting aligns with several practical applications in drafting environments. Drafting tables require a surface that not only supports the drawing medium but also maintains stability and facilitates precision. Vinyl surfaces give a smooth finish that helps with the even application of writing instruments like pencils or markers, ensuring that the lines drawn are consistent and clear.

Moreover, the density refers to the table’s ability to withstand pressure while drafting, allowing a slight give that can help when applying force to draw or trace. This can enhance the overall drafting experience by preventing tool slippage, which is crucial for achieving accurate and detailed designs.

In contrast, while factors like easy cleaning, visibility, and glare reduction are important in office settings, they don't directly address the principal functionalities required in the drafting process, which prioritizes precision and support. Thus, the emphasis on density and surface quality effectively highlights why smooth vinyl is chosen for drafting tabletops.