Drawing Revision Standards

[c_hornyak]

What are the standard drawing revision letters/numbers? My drawings are construction drawings. 

Normally I use letters starting with A for the initial drawing set. Any revised set after is B,C,D,etc.

When the project is issued for construction, all the lettered revisions are removed from the titleblock. The issued for construction drawing is revision 0. Any revised construction sets are numbers 1,2,3 etc. Changes after revision 0 are clouded and a revision triangle is placed next to the cloud. If the revision is revision set 1, a 1 is placed inside the revision triangle. 

My real confusion is when the as-built drawings are created. Do people normally make that a numbered revision and keep all the construction revisions? Or removed all the construction revisions from the titleblock and make the as-built revision "AB" as-built? Do you cloud changes from the construction sets to the as-built?

[TheCADnoob · Accepted solution]

FOr most of the work we do, after they are issued for construction all subsequent revisions are numbered in sequence. So if it is rev 4, and then asbuilt, it would be rev 5. 

That said, we also use several other revision schemes depending on the client's standards, but generally they all are alpha until IFC and then numerical after. 

[c_hornyak]

Do you cloud the as-built changes or just make the as-built changes and remove any clouds/revision triangles from the drawings?

[paullimapa · Accepted solution]

Typically for "as-builts" there are no revision clouds or numbers since this should reflect the current state of the construction when completed.

[TheCADnoob · Accepted solution]

For us that is a pretty 'per client' item. We have done it both ways and depending on where the document it headed it may be different. if the document is going in as project documentation as opposed to site document turn over it can be different even on the same set of drawings. 

The important thing is to have whatever the process is written down and agreed upon by all stakeholders.