Feet-Inch-Fraction ⇄ Decimal / Metric
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Rebar Bar Size — Imperial ⇄ Metric
SI designation is the exact ASTM soft-conversion metric size (same physical bar). Weight (kg/m) = weight (lb/ft) × 1.48816.
Standard Hook Dimensions ASTM / PCI Design Handbook 15.4.1
D = standard bend (pin) diameter. "A or G" = straight extension beyond the bend. Stirrup/tie hooks are standardized through #8 only. All values in inches; used automatically by the Column and Beam pages.