The distance from the top terminal landing to the bottom terminal landing must be checked against the ________.

The distance from the top terminal landing to the bottom terminal landing must be checked against the final layout because the final layout outlines the specific dimensions and placements of various components of the installation, ensuring that they conform to the design plans for the elevator system. This check is crucial as it validates that the elevator has been installed in the correct position relative to other building structures and conforms to the planned configuration, ultimately contributing to safe and efficient operation.

While the construction plan provides initial specifications, the final layout often incorporates any adjustments made during the construction phase, ensuring that everything fits as intended. Safety regulations primarily focus on safe practices and minimum standards, and the installation guide includes procedural instructions but may not specifically verify the measured distances that are critical for operational integrity. Therefore, the final layout is the most accurate reference for this particular measurement.