Steel joists - tag
Steel joists - tag
(OP)
I'm looking at a warehouse probably 35-to-40 years old. It has steel bar joists for roof framing. The bar joists are tagged as 0250715 J1. Question is, what does it mean? Can it be traced back to a joist designation?






RE: Steel joists - tag
Some joists have multiple tags. You may have to look at all of them, although I have usually found that the metal tag is the one that you want. The other tag(s) may be for painting info.
I suggest you check all tags and examine adjacent joists. You should be able to find the info. that you need.
RE: Steel joists - tag
The J1 is a mark designation that would correspond to a joist layout on that particular project.
I just did this on a project -had a tag with a project number and mark number and found a local joist firm who corroborated that the joist project no. and the city location matched one of their projects. They were able to identify the joist size.
Sometimes they have the original shop drawings for the project and other times they don't. Depends on the age and the degree of archiving that the joist company does.
RE: Steel joists - tag