> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/3d-modeling-and-design/precast-concrete/feature-descriptions/column-reinforcement/diamond-stirrups.md).
# Diamond stirrups
**Diamond Stirrups** are a special type of reinforcement stirrup used for **square columns**. Unlike traditional rectangular stirrups, diamond stirrups form a **diamond-shaped loop** around the column reinforcement, providing improved confinement and aesthetic symmetry.
{% hint style="info" %}
Currently, **Diamond Stirrups** are **supported only for square column configurations**.
{% endhint %}
***
Diamond stirrups can only be generated under specific reinforcement conditions.\
They are **conditionally enabled** based on the reinforcement layout of the **Front** and **Bottom** faces of the column.
***
Diamond stirrups will be generated **only if one of the following conditions is met:**
* #### **Condition A – Reinforcement Count Rule**
The **Front** or **Bottom** reinforcement must satisfy at least one of the following:
* The number of bars is **greater than or equal to 3 (≥ 3)**, **or**
* The number of bars is an **odd number** (e.g., 3, 5, 7, ...).
**Example:**
| Face | Number of Bars | Diamond Stirrup Allowed? |
| ------ | -------------- | ------------------------ |
| Front | 2 | ❌ No |
| Bottom | 4 | ❌ No |
| Front | 3 | ✅ Yes |
| Bottom | 5 | ✅ Yes |
* #### **Condition B – Center Tie Rule**
Diamond stirrups may also be generated if they are tied to a center bar.
This rule overrides the reinforcement count rule.\
If a **center bar (Front/Back) -** connection exists, **diamond stirrups can be generated** regardless of bar count.
---
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