This page is the single home for how to treat information on Workshop Ref ( workshopref.com). Content pages do not repeat long disclaimers on every chart.
Workshop references
Charts, tables, and lookup tools are general references based on common published size systems. They are not certified engineering documents, stamped drawings, building permits, or a substitute for manufacturer specifications.
For critical, structural, or safety-related work, verify sizes and fits against the product manufacturer and use a physical gauge or test fit when tolerances matter. You are responsible for how you use the information.
Electrical content
Wire gauge, ampacity, branch-circuit, and related pages are informational only. They do not replace local electrical code, load calculations, inspections, or the advice of a licensed electrician. Do not use this site as the sole basis for wiring design or installation.
Accuracy
We aim to keep charts consistent with common published systems and to improve data over time. Seed or draft data may appear while tables are still being dual-checked. If you spot an error, please email admin@workshopref.com.
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Last updated: August 9, 2026