Category: Design
Prepared by Eng. Ahmed Fathy, Projects Manager ·
Definition
A drawing revision is a number or letter in the drawing's revision table with the date and a description of the change, such as Rev 0 for first issue and Rev 1 after the first change, with changes usually clouded on the drawing.
Why it matters on a project
Building from an old revision is a leading cause of demolition and rework. A clear revision register shows which drawing is current for construction.
Common mistake
Printing the new drawing on site while old copies stay in circulation without being stamped superseded.
Frequently asked questions
What does IFC on a drawing mean?
Issued for Construction, meaning the drawing is approved for building.
How do I know the latest revision?
From the drawing register kept by document control and issued with every new revision.
Related terms
- Shop drawingsDrawings prepared by the contractor or fabricator showing how items are made and installed, approved by the consultant before execution.
- Construction drawingsDetailed drawings used to build the work on site after design approval, including dimensions, levels and details.
- RFI (request for information)A formal request from the contractor to clarify a gap or conflict in drawings or specifications before execution.
- As-built drawingsDrawings updated to match what was actually built, handed over in the close-out file.
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