ASTM A500
Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
What it measures
Specifies structural tubing: shapes, wall thicknesses and mechanical properties.
Why it matters for a panel envelope
Where a panel opening needs a real structural header, a tube section is the usual answer.
Guardian Shield™
Cited in the Shield™ specification's reference standards. Structural headers for openings are integrated into the wall panels per the architectural drawings.
Source · 3-Part Specification, 1.3 F.2; Technical Product Description · Guardian documents
Written by Data Subsystems, for Guardian Structural Technologies. Last updated .
Drafted from Guardian Structural product literature and published building-science sources. Awaiting Guardian technical review. Confirm any figure against the current product documents or ask us before you rely on it in a design.
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