To review steel deck against SDI, confirm the ANSI/SDI SD edition the adopted building code and the deck specification cite, then trace each deck area from the framing plan through the deck schedule, diaphragm schedule, typical details, and deck submittal. Deck type, depth, thickness or gauge, finish, support attachment, side-lap fastening, and composite slab information should match in every source, and the diaphragm values and fastener patterns should be the same on the plans, notes, and specification. AI can flag conflicts; the engineer of record and the building official decide compliance.
What does ANSI/SDI SD-2022 cover?
The SDI store page for ANSI/SDI SD-2022 with Supplement 1 says the standard consolidates and extends the 2017 editions of the ANSI/SDI RD (roof deck), NC (noncomposite floor deck), and C (composite floor deck-slab) standards into one standard, developed as a consensus document to provide a uniform practice in the design of steel deck used for roof and floor applications, with design criteria for routine use. The Supplement 1 page says the 2026 supplement updates reference standards, removes a strength limit for composite steel deck-slabs, and adds an appendix for assessment of existing steel deck. SDI lists ANSI/SDI QA/QC-2022, for quality control and quality assurance of deck installation, and ANSI/SDI T-CD-2022, for testing composite deck-slabs, alongside it, and its Code of Standard Practice page lists ANSI/SDI COSP 2023 for the trade practices of deck design, sale, manufacture, and installation.
SDI’s standards page says the current editions are the 2022 editions, that SD-2022 with Supplement 1 is referenced in the 2027 International Building Code and the 2027 NFPA 5000, that SD-2022 is referenced in the 2024 editions, and that the 2017 RD, NC, and C standards were referenced in the 2018 and 2021 editions. The store page offers SD-2022 with Supplement 1 as a digital download at no charge or in print, and SDI’s ANSI page records the supplement’s 2025 public review. Checked October 27, 2026. By SDI’s own list, a jurisdiction enforcing an earlier IBC references the 2017 RD, NC, and C standards or SD-2022 without the supplement, so record the edition the adopted code names rather than assuming the newest one applies.
This page follows the deck and composite slab. The supporting beams, girders, and their connections follow the AISC 360 guide and the structural steel specifications guide, which do not cover deck profiles, deck fastening, or diaphragm schedules. SDI’s related standards page lists AISI S310, the North American standard for the design of profiled steel diaphragm panels, which SDI’s ANSI page now shows as ANSI/SDI AISI S310-2023, and loads come from the ASCE 7 guide.
Gather every sheet that describes the deck
Collect the structural general notes and typical deck notes, roof and floor framing plans with deck spans and orientation, the deck schedule, the diaphragm schedule or fastening table with zones, composite slab sections showing slab thickness, concrete, reinforcement, and shear connectors, deck edge, pour stop, closure, cantilever, and opening reinforcement details, the roofing details and roof assembly description, the architectural fire-resistance assembly designations that include deck, and the steel deck specification section. UFGS 05 30 00 Steel Decks (Active on WBDG, published May 2015 with an August 2018 change) is one federal master; office masters may number and title the section differently.
Add the deck manufacturer’s submittal, the fastener and side-lap connector product data or evaluation reports the diaphragm relies on, and the SDI and AISI S310 editions the adopted code references.
Trace each deck area from the framing plan to the submittal
| Review question | Sources to compare | Decision to record |
|---|---|---|
| Edition and design basis | Structural general notes, deck specification, submittal | Confirm one SDI edition, or the 2017 RD, NC, and C set, and one diaphragm standard are named across notes, specification, and submittal. |
| Deck type, depth, and thickness | Deck schedule, framing plans, slab sections, specification, submittal | Check that each area’s profile, depth, and gauge or design thickness are the same in every source, and that the specification states thickness the same way the schedule does. |
| Finish | Deck schedule, specification, fire-resistance assemblies, submittal | Match galvanized, primed, or painted finishes by area, including any finish a rated assembly or exposed condition requires. |
| Support attachment pattern | Diaphragm schedule, typical deck notes, details, specification | Confirm the fastener type and pattern at supports and edges match by zone in the schedule, notes, details, and product data. |
| Side-lap fastening | Diaphragm schedule, deck notes, specification, product data | Check the side-lap connection type and spacing appear once per zone and that a proprietary side-lap connector named in one source is not replaced in another. |
| Composite deck-slab notes | Slab sections, composite deck notes, shear stud plans, specification | Match slab thickness, concrete type, reinforcement, shear connectors, shoring notes, and pour stops between the sections, notes, and specification. |
Roof deck attachment interacts with the roof assembly, so compare deck notes with the roofing membrane specifications guide. Rated floor and roof assemblies continue in the ASTM E119 and UL 263 guide, composite slab concrete in the concrete specifications guide, deck welding in the AWS D1.1 guide, and deck inspections in the special inspections corrections guide.
Example: a diaphragm zone the specification never mentions
Hypothetical example. A two-story office building has a composite floor deck and a wide-rib roof deck acting as a diaphragm. The roof diaphragm schedule defines a high-shear zone near the braced frames with a tighter support and side-lap pattern, but the typical deck notes give one pattern for the whole roof, the deck specification names a different side-lap connector than the schedule, the deck schedule lists a lighter gauge for the roof than the specification, and the composite slab section shows a slab thickness that differs from the general notes.
The roof diaphragm schedule defines a high-shear zone that the typical deck notes do not, the specification names a different side-lap connector, the roof deck gauge differs between the deck schedule and the specification, and the composite slab thickness differs between the section and the general notes. Confirm the diaphragm zones, connector, gauge, and slab thickness, and coordinate the schedules, notes, specification, and details.
The engineer of record confirms the fastening by zone, the connector, the gauge, and the slab thickness, and the specification and notes are revised to match the schedules. The finding is a disagreement between documents, not a judgment of the diaphragm design.
Review steel deck with Groundbook
Upload the current drawings and specifications to Groundbook, and state the edition, amendments, and review scope in your instructions. SDI offers ANSI/SDI SD-2022 with Supplement 1 as a free digital download and lists earlier editions on its standards page: upload the edition the adopted building code references, the adopted code and its amendments, the diaphragm standard edition it cites from a copy you may upload, and the deck submittal. See how Groundbook works with local and licensed codes.
Compare the structural general notes, typical deck notes, roof and floor framing plans, deck and diaphragm schedules, composite slab sections, deck edge, closure, cantilever, and opening details, roofing and fire-resistance assembly information, the steel deck specification, and the deck manufacturer’s submittal and fastener data. Flag a missing or conflicting SDI edition, deck type, depth, gauge or thickness, or finish that differs between sources, support or side-lap fastening that differs by zone, connectors named differently, and composite slab information that does not match. Use the supplied SDI standard and cite both sources.
Groundbook links each potential finding to the sheets, schedules, and submittal pages involved. It does not compute diaphragm shear, deck span capacity, or composite slab strength.
Document review does not certify compliance or design the deck, and it does not replace the engineer of record, the deck manufacturer, the special inspector, or the building official.