> ## 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.

# 🇦🇺 🇳🇿 Calculators for Australia & New Zealand

> Welcome to the calculators for Australia and New Zealand. Here you'll find comprehensive documentation and examples for structural calculations based on Australian and New Zealand standards including AS 3600, AS 4100, AS 1720, AS/NZS 1170, and more.

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  <p className="docs-ai-callout-text">
    <strong>Looking for something specific?</strong> Use the <strong>AI assistant</strong> in this documentation site. Ask in plain language, for example <em>"How do I design a timber beam to AS 1720?"</em> or <em>"Where are the wind load guides for AS/NZS 1170?"</em> It searches our guides and worked examples for you.
  </p>
</div>

## 🚀 Quick Start

<CardGroup cols={2}>
  <Card title="3 Steps to Success" icon="list-numbers" href="/learn_calcs/getting_started/getting_started__3_simple_steps_for_success">
    Learn the three key steps to using Calcs.com
  </Card>

  <Card title="Video Tutorials" icon="video" href="/calculations/general_analysis_calculations/calcs_calculator_tutorials_and_worked_examples">
    AU/NZ calculator walkthroughs on YouTube
  </Card>

  <Card title="Project Defaults" icon="adjustments-horizontal" href="/calculations/au/project_defaults_au_nz">
    Configure default values for AU/NZ projects
  </Card>

  <Card title="Wind Loads" icon="wind" href="/calculations/au/how_to_calculate_wind_loads_to_as_nz_1170_2_2011">
    Calculate wind loads to AS/NZS 1170.2:2011
  </Card>
</CardGroup>

## ⚙️ Project Defaults

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  <Card title="AU/NZ Project Defaults Guide" icon="adjustments-horizontal" href="/calculations/au/project_defaults_au_nz">
    Full guide to AU/NZ project defaults
  </Card>

  <Card title="FAQ: How They Work" icon="question-mark" href="/learn_calcs/faq/how_project_defaults_work">
    How project defaults propagate across calculators
  </Card>

  <Card title="Video: Project Defaults" icon="video" href="/learn_calcs/getting_started/onboarding_videos/how-to-proj-defaults">
    Walkthrough of setting up project defaults
  </Card>
</CardGroup>

## 📐 Calculation Modules

### Beams

<CardGroup cols={3}>
  <Card title="Timber (AS 1720)" icon="wood" href="/calculations/au/how_to_design_a_timber_beam_to_as_1720_1_2010">
    Design timber beams to AS 1720.1:2010
  </Card>

  <Card title="Steel Beams (AS 4100)" icon="square-letter-s" href="/calculations/au/how_to_design_a_steel_beam_to_as_4100_1998">
    Design steel beams to AS 4100:1998
  </Card>

  <Card title="Cold-Formed Steel" icon="square-letter-c" href="/calculations/au/how_to_design_a_cold_formed_steel_beam_to_as4600_2018">
    Design cold-formed steel to AS/NZS 4600:2018
  </Card>

  <Card title="Steel Angle Lintels" icon="square-letter-s" href="/calculations/au/how_to_design_a_steel_angle_lintel_to_as_4100_1998">
    Design steel angle lintels to AS 4100:1998
  </Card>

  <Card title="Concrete (AS 3600)" icon="cube" href="/calculations/au/how_to_design_a_concrete_beam_to_as_3600_2018">
    Design concrete beams to AS 3600:2018
  </Card>
</CardGroup>

### Columns

<CardGroup cols={3}>
  <Card title="Timber Columns" icon="wood" href="/calculations/au/how_to_design_a_timber_column_to_as_1720_1_2010">
    Design timber columns to AS 1720.1:2010
  </Card>

  <Card title="Steel Columns" icon="square-letter-s" href="/calculations/au/how_to_design_a_steel_column_to_as_4100_1998">
    Design steel columns to AS 4100:1998
  </Card>

  <Card title="Concrete Columns" icon="cube" href="/calculations/au/how_to_design_a_concrete_column_to_as3600_2018">
    Design concrete columns to AS 3600:2018
  </Card>
</CardGroup>

### Foundations & Retaining

<CardGroup cols={3}>
  <Card title="Sleeper Retaining Walls" icon="stack-2" href="/calculations/au/how_to_design_a_sleeper_retaining_wall">
    Design sleeper retaining walls
  </Card>

  <Card title="Masonry Retaining Walls" icon="stack-2" href="/calculations/au/how_to_design_a_masonry_retaining_wall">
    Design masonry retaining walls
  </Card>

  <Card title="Concrete Sleeper Walls" icon="stack-2" href="/calculations/au/concrete_sleeper__steel_post_retaining_wall___how_to_use">
    Concrete sleeper and steel post retaining walls
  </Card>

  <Card title="Concrete Pad Footings" icon="stack-2" href="/calculations/au/how_to_use_the_concrete_pad_footing_calculator_as_3600_2018">
    Design pad footings to AS 3600:2018
  </Card>

  <Card title="Bearing Capacity" icon="stack-2" href="/calculations/au/bearing_capacity_calculator">
    Calculate soil bearing capacity
  </Card>

  <Card title="Concrete Slabs" icon="stack-2" href="/calculations/au/concrete_slabs">
    Concrete slab design and analysis
  </Card>
</CardGroup>

### Loads

<CardGroup cols={3}>
  <Card title="Wind Loads" icon="wind" href="/calculations/au/how_to_calculate_wind_loads_to_as_nz_1170_2_2011">
    Calculate wind loads to AS/NZS 1170.2:2011
  </Card>

  <Card title="Bushfire Attack Level" icon="flame" href="/calculations/au/how_to_calculate_the_bushfire_attack_level_to_as_3959_2018">
    Calculate BAL to AS 3959:2018
  </Card>

  <Card title="Seismic Analysis" icon="wave-saw-tool" href="/calculations/au/seismicAnalysisAU-basic-guide">
    Seismic analysis guide for Australia
  </Card>
</CardGroup>

## 📚 Popular Guides

<CardGroup cols={2}>
  <Card title="Wind Load Calculations" icon="wind" href="/calculations/au/how_to_calculate_wind_loads_to_as_nz_1170_2_2011">
    Complete guide to wind load calculations per AS/NZS 1170.2:2011
  </Card>

  <Card title="Timber Beam Design" icon="tree" href="/calculations/au/how_to_design_a_timber_beam_to_as_1720_1_2010">
    Step-by-step timber beam design guide
  </Card>
</CardGroup>

## 🔍 Browse by Category

Use **Design Calculators → AU/NZ Calculators** in the left sidebar to explore all guides organized by:

* **Project Defaults** - AU/NZ defaults
* **Beams** - Timber (AS 1720), Steel and cold-formed steel, Concrete (AS 3600)
* **Columns** - Timber, steel, concrete
* **Foundations & Retaining** - Retaining walls, footings, slabs
* **Loads** - Wind, bushfire attack level, seismic

## 💡 Need Help?

<CardGroup cols={2}>
  <Card title="FAQ" icon="help-circle" href="/learn_calcs/faq/common_errors_and_how_to_fix_them">
    Find answers to common questions
  </Card>

  <Card title="Contact Support" icon="headset" href="/contact_us">
    Get help from our support team
  </Card>
</CardGroup>