What is a common way to document what was completed during construction on drawings?

Using red lines is a common method to document changes or completed work on construction drawings. This practice is part of the redline markup process, where modifications, corrections, and completed items are clearly marked in red on the original drawings. This allows for easy identification of what has been altered from the original plans.

Redlining serves several important purposes: it creates a visual record of changes for future reference, helps in communication among team members, and can be a part of maintaining accurate as-built drawings. When the drawings are updated, it is essential for everyone involved in the project to have a clear understanding of what has been completed and any deviations from the initial design.

In contrast, other strategies such as coloring light fixtures differently or highlighting other trades' sheets do not provide a standardized method for documenting completed tasks across the entire construction project and may not offer clarity in terms of changes made. Crossing out notes may not effectively communicate the status of work or changes because it does not provide a clear visual history of decisions and modifications.