What size is Architectural C paper?

Architectural C paper is specifically defined as 24 x 18 inches in size. This standard size is commonly used in architectural drawings and blueprints due to its manageable dimensions, which allow for the detailed representation of designs while maintaining portability and ease of handling. The size is ideal for various applications, such as drafting and presenting architectural plans.

The other options represent different dimensions that do not align with the standard classification for Architectural C paper. Recognizing the precise measurements used in the field is vital for anyone working in architecture or design to ensure proper scaling and presentation of their work.