Electrical conduit sizes

[stelthorst]

I've noticed that electrical conduit is drawn at it's trade size diameter and not the actual diameter of the pipe. This difference can be as much as 1/2" on larger conduit sizes. This may seem like a minor issue but in my business (coordinating conduit routing with the mechanical, plumbing, and fire sprinkler systems) a 1/2" could make the difference between a proposed routing fitting or not.

I would suggest that electrical conduits be drawn at there actual OD to more accurately reflect field conditions.

[Steve_Bennett]

I would have to agree about this. It's not that hard to get something drawn to scale & label as the industry standard. I've always said - if you can draw it to scale, why would you want anything else?