TOOLS FOR
THE TRADE.
Calculators and AISC reference lookups for people who detail, fabricate and build with steel. Pick a tool to open it.
CALCULATE IT.
Everyday tools for detailers, fabricators and builders: convert units, lay out a stair, and do feet-inch-fraction math.
Unit Converter
Convert between mm, cm, m, inches, feet and yards, with fraction and feet-inch entry.
Open tool →Stair Calculator
Lay out risers, treads and stringer length, checked against OSHA 1910.25 or the IBC.
Open tool →Feet-Inch Calculator
Add, subtract, multiply and divide in feet, inches and fractions.
Open tool →LOOK IT UP.
Quick lookups from the AISC Steel Construction Manual (14th and 15th Editions) for connection detailing: bolts, gages, anchor rods, fillets, cold bending and bolt rows.
AISC Bolt Reference
Hole and slot sizes, minimum bolt spacing and minimum edge distance by bolt diameter.
Open tool →AISC Angle Gage
Workable gages g and g1 to g4 for an angle leg size.
Open tool →AISC Anchor Rods
Recommended hole diameter and washer size for an anchor rod in a base plate.
Open tool →AISC Fillet Encroachment
Encroachment allowance when riding the fillet, by k_det − t_f.
Open tool →AISC Cold-Bending Radius
Minimum inside radius for cold-bending a plate, by steel designation and thickness.
Open tool →AISC Bolt Rows
Recommended minimum and maximum bolt rows by W-shape beam depth.
Open tool →Sources and use
AISC reference values come from the AISC Steel Construction Manual, 14th and 15th Editions, and the ANSI/AISC 360 Specification. The AISC tables are the property of the American Institute of Steel Construction; they are reproduced here as a quick reference and may not match the edition or addenda you are required to use. The stair calculator uses limits from OSHA 29 CFR 1910.25 and the 2021 IBC. Tool results are for reference only: check them against the governing code, the current AISC publication and your project documents before using them for design, fabrication or erection.
DisclaimerEducational use only. Not engineering, legal or code-compliance advice.
The content on StructuralWorld, including articles, diagrams, calculators and other tools, is provided for general educational and informational purposes only. It is not engineering, architectural, legal or code-compliance advice, and it does not create a professional relationship between you and StructuralWorld or its authors.
Codes, standards and regulations (for example OSHA, IBC, ADA and AISC) are revised regularly and are adopted and amended differently by each jurisdiction. Figures shown here may be simplified, may refer to a specific edition, and may be out of date or contain errors. Calculators and interactive diagrams are illustrative only and are not a substitute for design calculations, shop drawings or engineering review.
Before relying on any information for design, fabrication, erection, inspection or safety decisions, verify it against the current governing code and the project documents, and consult a qualified, licensed professional (such as a structural engineer) and the authority having jurisdiction.
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