> ## Documentation Index
> Fetch the complete documentation index at: https://calcs.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Columns

> Column calculators for the United States: steel, wood, concrete and cold-formed steel.

<CardGroup cols={3}>
  <Card title="Design a Steel Column (ASD) to AISC 360-22" icon="calculator" href="/docs/calculators/us/columns/steelColumnASDAISC360-22">
    Design hot-rolled steel columns and posts to AISC 360-22 (ASD). Checks axial compression, flexural buckling and combined axial and bending.
  </Card>

  <Card title="Design a Steel Column (LRFD) to AISC 360-22" icon="calculator" href="/docs/calculators/us/columns/steelColumnAISC360-22">
    Design and analyze steel columns and posts to AISC 360-22 (LRFD). Multiple end fixities with traffic-light checks for moment, axial, and deformation.
  </Card>

  <Card title="Design a Wood Column (ASD) to NDS 2024" icon="pencil" href="/docs/calculators/us/columns/timberColumnASDNDS-2024">
    Design wood columns and studs to NDS 2024 (ASD), with load linking from beams and a database of US wood sections.
  </Card>

  <Card title="Design a Wood Column (LRFD) to NDS 2024" icon="calculator" href="/docs/calculators/us/columns/timberColumnLRFDNDS-2024">
    NDS 2024 LRFD wood column. Stability (Cp), combined bending and axial (NDS 3.9), and bearing with φc, KF, λ. Load reactions link from connected beams.
  </Card>

  <Card title="Design a Concrete Column to ACI 318-19" icon="map" href="/docs/calculators/us/columns/concreteColumnUSAACI318-19">
    Design rectangular concrete columns to ACI 318-19. Checks axial capacity, P-M interaction, biaxial bending and slender column moment magnification.
  </Card>

  <Card title="Design a Concrete-Filled Column to AISC 360-22" icon="calculator" href="/docs/calculators/us/columns/concreteFilledColumnAISC360-22">
    Design concrete-filled HSS composite columns to AISC 360-22 Chapter I, with AISC Design Guide 6 (2nd Ed.), ACI 318-19 and IBC 2024, in LRFD or ASD.
  </Card>

  <Card title="Design a Cold-Formed Steel Stud or Column to AISI S100-16" icon="square-letter-c" href="/docs/calculators/us/columns/cfsSteelColumnAISI">
    Design cold-formed steel studs and columns to AISI S100-16(2020) w/S2-20 with the Direct Strength Method and separate effective lengths per axis.
  </Card>
</CardGroup>

### Guides and Examples

<CardGroup cols={3}>
  <Card title="Worked Example: Concrete Column to ACI 318-19" icon="map" href="/docs/calculators/us/columns/concrete-column-calculator-worked-example">
    Worked example: an axially loaded concrete column to ACI 318-19, solving nominal compressive strength and checking moment and interaction utilization.
  </Card>

  <Card title="Steel Column Validation Examples" icon="ruler-2" href="/docs/calculators/us/columns/steel-column-validation-examples">
    Validation and design examples for steel columns to the 2016 AISC Specification, compared with AISC Companion examples.
  </Card>

  <Card title="Wood Column Validation Examples (NDS 2018)" icon="ruler-2" href="/docs/calculators/us/columns/wood-column-validation-examples">
    Wood Column to NDS 2018 - Validation Examples
  </Card>
</CardGroup>

### Older Code Editions

<CardGroup cols={3}>
  <Card title="Design a Steel Column (ASD) to AISC 360-16" icon="calculator" href="/docs/calculators/us/columns/steelColumnASD">
    Design hot-rolled steel columns and posts to AISC 360-16 (ASD). An earlier code edition, kept for existing projects.
  </Card>

  <Card title="Design a Steel Column (LRFD) to AISC 360-16" icon="calculator" href="/docs/calculators/us/columns/steelColumnAISC">
    Design hot-rolled steel columns and posts to AISC 360-16 (LRFD). An earlier code edition, kept for existing projects.
  </Card>

  <Card title="Design a Wood Column (ASD) to NDS 2018" icon="calculator" href="/docs/calculators/us/columns/timberColumnASD">
    Design wood columns and studs to NDS 2018 (ASD). An earlier code edition, kept for existing projects.
  </Card>

  <Card title="Design a Wood Column (LRFD) to NDS 2018" icon="calculator" href="/docs/calculators/us/columns/timberColumnLRFD">
    Design wood columns and studs to NDS 2018 (LRFD). An earlier code edition, kept for existing projects.
  </Card>

  <Card title="Design a Rectangular Concrete Column to ACI 318-14" icon="calculator" href="/docs/calculators/us/columns/concreteColumnUSA">
    Design rectangular concrete columns to ACI 318-14. An earlier code edition, kept for existing projects.
  </Card>
</CardGroup>