> ## 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.

# Calculate Wind Loads (NBCC 2020)

> Pull the reference wind pressure and climatic data for any Canadian site from the NBCC 2020 tables (Appendix C) as the basis for design wind loads.

<div className="calc-details not-prose">
  <div className="calc-details-item">
    <div className="calc-details-chips"><span className="calc-chip calc-chip--region">Canada</span></div>
    <div className="calc-details-head"><span className="calc-card-icon"><Icon icon="calculator" size={20} color="#0076d6" /></span><p className="calc-details-name">Wind Loads NBCC 2020</p><a className="calc-details-run" href="https://app.calcs.com/new/sheet/loadsWindNBCC2020">Run the calc</a></div>
  </div>
</div>

<div className="calc-answer">
  Establish design wind loads to NBCC 2020. Select the site location to pull the reference wind pressure and climatic data from the NBCC 2020 tables (Appendix C, Table C-2) as the basis for the pressure build-up.
</div>

## Method & scope

| Property       | Detail                          |
| -------------- | ------------------------------- |
| Regions        | Canada                          |
| What it checks | Site location and climatic data |

#### Calculation method

This calculator establishes wind loads on a structure to the National Building Code of Canada 2020. The template supplied for this page is an early build, so the description below covers only what the template confirms; the full pressure coefficient and load-case detail is not yet present in it.

##### Site location and climatic data

The calculation starts from the site location. Selecting the geographic location of the structure populates the reference wind pressure and other site-specific climate data from the NBCC 2020 climatic data tables (Appendix C, Table C-2). Locations are provided from the NBCC 2020 climatic data set, with Toronto (City Hall) as the default, and both metric and imperial unit systems are supported. This reference wind pressure is the site value that the NBCC 2020 wind pressure build-up is based on.

Further inputs and checks (for example exposure, gust, and pressure coefficient factors, and the resulting design pressures on the main structural system and on cladding) were not present in the template provided for this page and have been omitted rather than assumed. This section should be regenerated once a fuller template is available.

## How to use it

<Steps>
  <Step title="Open the calculator">
    Open it from **Run calc** in the About this calculator panel above.
  </Step>

  <Step title="Enter your inputs">
    Work through the input sections from top to bottom. Click any input label to see its reference explanation, clause, conditions and assumptions. See [Checks, References, Conditions and Assumptions](/docs/running-calculations/checking-results/checks-references-conditions-assumptions).
  </Step>

  <Step title="Review the results and export">
    Check the utilization of each governing check in the summary, then export a PDF report. See [Views and Export](/docs/running-calculations/exporting-reports/views-and-export).
  </Step>
</Steps>

## Common questions

<AccordionGroup>
  <Accordion title="What code does this wind load calculator use?">
    It establishes wind loads to the National Building Code of Canada 2020. The site location drives the reference wind pressure and associated climatic data drawn from the NBCC 2020 climatic data tables (Appendix C, Table C-2).
  </Accordion>

  <Accordion title="How is the site wind data determined?">
    You select the geographic location of the structure, and the calculator populates the reference (hourly) wind pressure and other site-specific climate data for that location from the NBCC 2020 climatic data tables, rather than requiring the values to be looked up and entered by hand.
  </Accordion>

  <Accordion title="Which locations are available?">
    Locations are taken from the NBCC 2020 climatic data set (for example, Toronto (City Hall) is the default). Selecting a location sets the reference wind pressure used as the starting point for the design pressure calculation.
  </Accordion>

  <Accordion title="Is this for the main structural system or cladding?">
    Wind loads to NBCC 2020 are used for both the main structural system and for cladding and components. Confirm the specific pressure coefficients and load cases for your element against NBCC 2020 Subsection 4.1.7 when applying the results.
  </Accordion>

  <Accordion title="Does it work in metric and imperial units?">
    Yes. The location and site data support both metric (MKS) and imperial (FPS) unit systems, so the reference wind pressure and results can be reported in the units used on your project.
  </Accordion>
</AccordionGroup>

## Next steps

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  <Card title="Canada Calculator Library" icon="list" href="/docs/calculators/ca#loadsWindNBCC2020">
    Complete list of Calcs.com design calculators available for Canadian projects (CSA O86, CSA S16, NBCC, and related standards).
  </Card>

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    Determine design base shear to NBCC 2020 (Art. 4.1.8) with the Equivalent Static Force Procedure, and distribute forces story by story.
  </Card>

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    Get balanced, unbalanced, drift, and sliding roof snow loads to NBCC 2020 Cl. 4.1.6 from the 1-in-50-year ground snow basis, with each code clause shown.
  </Card>

  <Card title="Design a Wood Beam, Joist, and Girder to CSA O86" icon="calculator" href="/docs/calculators/ca/beams/timberBeamCA">
    Design simple and continuous wood beams, joists and girders to CSA O86:19 with unlimited supports and loads. Checks moment, shear and deflection.
  </Card>

  <Card title="Design a Wood Column to CSA O86" icon="calculator" href="/docs/calculators/ca/columns/timberColumnCA">
    Design wood columns and studs to CSA O86:19, with load linking between beams and columns.
  </Card>
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