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Steel reference & field notes.

The things we had to look up, work out or argue about — written down properly. Mostly reference, occasionally what we learned building something.

ReferenceAugust 1, 2026 · 5 min read

Steel Drawing Symbols and Abbreviations

What the marks on a shop drawing actually mean — shape designations, weld symbols, bolt callouts and the abbreviations that trip people up.

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Want these for yourself?

We can put these tools on your site, in your systems, or in front of your customers.

Everything here is something we built for ourselves first. If a calculator like this would earn its keep in your business, we build the same thing against your data and your brand.

On your website

Branded to your shop and hosted on your own domain. Reference tools are the reason people bookmark a fabricator's site — they come back for the chart and remember who published it.

Wired to your data

The same math running against your inventory, your mill certs and your job costs, so a takeoff pulls real weights from real material instead of a lookup table.

As internal tooling

Built into whatever your estimators already open. Fewer spreadsheets passed around, and one place where the numbers are known to be right.

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