---
title: "Changing the Radius of a Curved Wall or Tank"
slug: "changing-the-radius-of-a-curved-wall-or-tank"
updated: 2023-08-04T09:55:20Z
published: 2023-08-04T09:55:20Z
canonical: "docs.avontus.com/changing-the-radius-of-a-curved-wall-or-tank"
---

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

# Changing the Radius of a Curved Wall or Tank

You can use a negative or positive radius in a Curved Wall or a Tank. A radius marker appears on the outside of the curve. The default for a Curved Wall is a negative radius. For a Tank, the default is a positive radius. You can see when your Tank radius is to the inside or outside by observing the location of the yellow control point.

![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/08fbba98-01d1-4447-b6df-a138475b8181.jpg) ![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/77db808b-bb29-4022-8549-2a44e7de7c7c.jpg)

To change the radius of a Curved Wall or Tank:

1. Right-click the shape and select **Shape Data** from the ****Data**** sub-menu.  
![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/3bac771a-9147-410b-9d2f-112313e7ab4a.png)  
The Shape Data popup appears.
2. Click the **Wall radius** dropdown menu and select a new radius.  
**Note:** You can also double-click the text field and use your keyboard to enter the radius.  
**Note:** For measurements use ft. for feet, in. for inches and m. for meters.  
![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/564681df-2402-484d-9b11-2bf157f289cd.png)

The Curved Wall shape reflects the change. Notice that **Arc length of the wall** (which is only a reference field) updates automatically.

![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/f5c1323a-a834-483c-bd71-e18d7c4f991e.png)