# Cross-Section

This section defines the deck cross-section geometry including width, thickness, and overhang dimensions.

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**Navigation:** Superstructure > Deck > Cross-Section

For detailed parameter explanations, see the [Cross-Section Reference](https://docs.openbrim.org/templates/steel-i-girder-bridge-workflow/superstructure-sig/deck-sig/cross-section-sig).
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## Steps

### Step 1: Set Deck Width

Enter the following deck width parameters:

| Parameter         | Value    |
| ----------------- | -------- |
| PGL to Left Edge  | 20.25 ft |
| PGL to Right Edge | 20.25 ft |

![PGL to Left Edge](https://openbrim.atlassian.net/wiki/download/attachments/2123399477/image-20240928-153956.png?api=v2)

![PGL to Right Edge](https://openbrim.atlassian.net/wiki/download/attachments/2123399477/image-20240928-154015.png?api=v2)

### Step 2: Set Deck Thickness

Enter the **Mid Thickness** as **9 in**.

![Mid Thickness](https://openbrim.atlassian.net/wiki/download/attachments/2123399477/image-20240928-154038.png?api=v2)

### Step 3: Set Overhang Thickness

Keep the **Left Overhang Thickness** and **Right Overhang Thickness** as default.

![Overhang Thickness](https://openbrim.atlassian.net/wiki/download/attachments/2123399477/image-20240928-154103.png?api=v2)

## Verification

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The completed deck cross-section is shown below.
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![Completed Cross-Section](https://openbrim.atlassian.net/wiki/download/attachments/2123399477/image-20240928-153857.png?api=v2)

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To view the entire procedure explained on this page, please watch the recorded video below.
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{% embed url="<https://openbrim.atlassian.net/wiki/download/attachments/2123399477/Deck%20Cross%20Section.mp4?api=v2>" %}
Deck Cross Section
{% endembed %}