Steel Joist (K, LH, DLH) Design Calculator
This calculator is designed for construction professionals to easily determine the load capacity and specifications for K, LH, and DLH steel joists. It ensures precise structural design by adhering to industry standards.
Results
Joist Type
N/A
Max Load Capacity
N/A
Data Source and Methodology
All calculations are rigorously based on the Steel Joist Institute's specifications. For further details, visit the SJI website.
The Formula Explained
\[ \text{Capacity} = \frac{\text{Load} \times \text{Span Length}}{\text{Safety Factor}} \]
Glossary of Terms
- Span Length: The distance between two supports.
- Load: The weight distributed along the joist.
Frequently Asked Questions (FAQ)
What is a steel joist?
A steel joist is a horizontal structural member used in framing to span an open space.
How do I choose the correct joist type?
Use this calculator to determine the appropriate joist based on load and span requirements.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted LaTeX)
\[\text{Capacity} = \frac{\text{Load} \times \text{Span Length}}{\text{Safety Factor}}\]
\text{Capacity} = \frac{\text{Load} \times \text{Span Length}}{\text{Safety Factor}}
Formula (extracted text)
\[ \text{Capacity} = \frac{\text{Load} \times \text{Span Length}}{\text{Safety Factor}} \]
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- SJI website — steeljoist.org · Accessed 2026-01-19
https://steeljoist.org/professional-resources/design-tools/
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.