It may be surprising to understand how the architect’s design crafted after a thorough analysis, measurement, and planning undergoes variations during the final execution. People assume that a fabrication drawing will be executed as such during the implementation. While the purpose of the fabrication drawing stands true to this assumption, one cannot rule out the practical difficulties, change in requirements, and lack of facilities that may demand variations in the concluded design. This is where the crucial importance of as-built drawings comes into play. They serve as a record of the executed design and play a vital role in giving the final shape to the project.
Who creates as-built drawings?
Unlike spool, fabrication, and ISO drawings that the project architect and designer exclusively do, as-built drawings are done by the project architect and designer in collaboration with the contractor. During construction, the contractor will mark changes in different colour codes in the original drawings. The final as-built drawing is created with these changes incorporated.
Data included in as-built drawings:
- Dates of modification
- Detailed notes of the modification
- Changes in the material requirements
- Obstructions encountered and solutions provided
- Changes made in response to inspections
- Work done beyond the scope of the project
- Accurate final dimensions
- Changes in the design
Supporting documents endorsing the changes
Importance of as-built drawings: