Where can an elevator constructor find platform dimension information?

The correct choice for finding platform dimension information is in the final layout. Final layout documents typically provide comprehensive dimensions, placements, and configurations specifically for the installation of equipment like elevators. These documents ensure that all components fit together correctly and according to design specifications.

While component detail drawings may include information about individual parts, they do not usually provide comprehensive context about how these components fit into the overall assembly, which is essential for platform dimensions. Assembly instructions offer guidance on how to put parts together but do not necessarily contain detailed dimensions. Technical specification sheets generally list materials, performance metrics, and engineering standards, but again, they are not focused on the spatial arrangement needed for a complete installation. Hence, the final layout is the most reliable source for platform dimension information in this context.