Complete instructions for building construction consist of which two major parts?

The correct answer identifies that complete instructions for building construction are made up of working drawings and written specifications. Working drawings provide detailed graphics that illustrate the construction measures, layouts, dimensions, and materials used in the building project. They serve as visual guidance for contractors, ensuring that every aspect of the construction is executed as intended.

Written specifications complement these drawings by providing detailed descriptions of materials, construction methods, and quality standards. They outline requirements for materials and workmanship, which is essential for the project to meet both design intentions and regulatory standards. This combination ensures a comprehensive approach to construction, allowing for clear communication among architects, builders, and other stakeholders involved in the project.

In contrast, architectural sketches and structural details focus more narrowly on design and structural elements but may not encapsulate the entirety of construction instructions as thoroughly as working drawings and specifications. Similarly, design concepts and finished blueprints would not adequately cover the functional aspects that specifications provide. Safety regulations and material lists, while important, do not directly outline the complete framework needed for construction execution. Together, working drawings and written specifications ensure that the building is constructed accurately and to appropriate safety standards.