Structural steel & metalwork

Beams, columns, girders and purlins; composite and castellated sections; base plates, bolt groups, welds and shear studs; metal decking; cold-formed framing and track; and the deflection, bearing and vibration limits that usually govern before strength does.

Whether the question is a quantity or a capacity. Weight and length calculators price a package; capacity calculators answer whether a section works, and they need the load case, the span condition and the grade. A serviceability limit — deflection, vibration — is most often the binding one on a floor beam, which is why those sit beside the strength checks rather than behind them.

Reinforcing bar, which is part of the pour it sits in; light-gauge partition framing, which is under drywall; and the fire protection sprayed or boarded onto steel.