In construction documents, what does "D" typically indicate?

In construction documents, the letter "D" typically signifies a "Door." This designation is used to easily reference and identify door types, sizes, and locations within the building plans. Clear abbreviations and symbols on construction drawings help ensure that all stakeholders, including architects, contractors, and builders, can understand the design intent and specifications without ambiguity.

The use of specific letters for common elements like doors enhances clarity and efficiency in reading blueprints. This is particularly important as construction documents are often complex, and quick identification aids in the construction process. Understanding the lettering convention used in these documents is crucial for interpreting plans correctly and for ensuring that all necessary materials and components are accounted for during construction.