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Calculators · Mass & Geometry

Mass and geometry calculators

Choose a section type, check geometry and mass, determine the paint area and then estimate primer and enamel consumption.

Calculators · Mass & Geometry

Rectangular hollow section

Rectangular hollow section

Unified calculation layer

Geometry, mass and paint area

mm
mm
mm
mm
mm
mm
mm
mm
mm
m
m
m
pcs.

Result

Rectangular hollow section

Total weight— kg
Sectional area
— mm²
Weight 1 m
— kg/m
External surface
— m²
Internal surface
— m²
Selected paint area
— m²
Primer including waste
— kg
Enamel including waste
— kg

Theoretical mass based on section geometry. Bending radii/fillets are not included.

Calculation details

Input data

Formulas

    Assumption

    The model uses theoretical sharp-corner geometry and material density from the current canonical material record.

    References and provenance
    • Methodologydocs/calculations/ed-p4-materials-geometry-weight-paint.md
    • Material density1lvl.thermal.materials · sp50-m1-245
    • Normative rolled-section mass and radiinot applied

    The result uses theoretical sharp-corner geometry. Normative section accuracy and table references require separate verification.

    Shared calculation layer

    All modes use the existing engine section geometry. The interface does not recalculate numeric values with separate formulas; the detailed calculation shows the returned engine formula trace.

    Limitations

    Mass is a theoretical geometric estimate. Bending radii and fillets, normative assortment mass, holes, weld metal and cutting optimization are not included.