AISC Steel Construction Manual: 16th Edition (325-23) vs 15th Edition (325-17)
The AISC Steel Construction Manual is the working reference used across U.S. structural-steel design and detailing. The 16th Edition (AISC 325-23) is the current release; the 15th Edition (AISC 325-17) is still in active use on projects, in offices, and in coursework. Pick the edition that matches your project specification.
Compare the options
AISC 325-23 — 16th Edition Steel Construction Manual
The current AISC Steel Construction Manual.
- Updated design tables, dimensions, and properties
- Aligned with the latest AISC Specification
- Standard reference for new structural-steel work
- Used by structural engineers, detailers, and inspectors
AISC 325-17 — 15th Edition Steel Construction Manual
The previous AISC Steel Construction Manual.
- Design tables, dimensions, and properties from the 15th Edition
- Aligned with the AISC Specification of that release
- Widely referenced on existing projects
- Useful when matching legacy office standards or job specs
Choose by your needs
- A reference for a new structural-steel project today — 16th Edition (AISC 325-23)
- Edition parity with a project specification citing 325-17 — 15th Edition (AISC 325-17)
- The latest design tables and dimensions on your desk — 16th Edition (AISC 325-23)
- A replacement copy of an older office reference — 15th Edition (AISC 325-17)
Questions and answers
Which AISC Steel Construction Manual is current?
The 16th Edition, AISC 325-23, is the current Steel Construction Manual. The 15th Edition (AISC 325-17) remains in use on existing projects and in offices that have not yet transitioned.
Do I need both editions?
Most engineers work with one edition at a time. Some firms keep both during a transition period so they can match the edition cited by each active project's specification.
Is the Steel Construction Manual the same as the AISC Specification?
No. The Manual collects design aids, tables, and worked information, and it includes references aligned with the AISC Specification. Buyers who need only the Specification typically choose a different AISC publication.
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