> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/mrkai77/loop/llms.txt
> Use this file to discover all available pages before exploring further.

# Thirds & Fourths Positioning

> Precise window positioning in thirds and fourths of screen space

## Overview

Thirds and fourths provide more granular window positioning than halves, enabling precise layouts for multi-window workflows. These actions divide the screen into thirds (33.33%) or fourths (25%) along horizontal or vertical axes.

## Horizontal Thirds

Defined in the static `horizontalThirds` array (line 78):

```swift theme={null}
static var horizontalThirds: [WindowDirection] { 
    [.rightThird, .rightTwoThirds, .horizontalCenterThird, 
     .leftTwoThirds, .leftThird] 
}
```

### Single Third Columns

<ParamField path="leftThird" type="WindowDirection">
  Positions window in the left third of the screen.

  **Raw Value:** `"LeftThird"`

  **URL Scheme:** `loop://LeftThird`

  **Frame Values:** `CGRect(x: 0, y: 0, width: 1.0/3.0, height: 1.0)` (line 130)

  **Visual:**

  ```
  ┌─────┬─────┬─────┐
  │     │     │     │
  │ Win │     │     │
  │33.3%│     │     │
  │     │     │     │
  └─────┴─────┴─────┘
  ```
</ParamField>

<ParamField path="horizontalCenterThird" type="WindowDirection">
  Positions window in the center third of the screen horizontally.

  **Raw Value:** `"HorizontalCenterThird"`

  **URL Scheme:** `loop://HorizontalCenterThird`

  **Frame Values:** `CGRect(x: 1.0/3.0, y: 0, width: 1.0/3.0, height: 1.0)` (line 129)

  **Visual:**

  ```
  ┌─────┬─────┬─────┐
  │     │     │     │
  │     │ Win │     │
  │     │33.3%│     │
  │     │     │     │
  └─────┴─────┴─────┘
  ```
</ParamField>

<ParamField path="rightThird" type="WindowDirection">
  Positions window in the right third of the screen.

  **Raw Value:** `"RightThird"`

  **URL Scheme:** `loop://RightThird`

  **Frame Values:** `CGRect(x: 2.0/3.0, y: 0, width: 1.0/3.0, height: 1.0)` (line 127)

  **Visual:**

  ```
  ┌─────┬─────┬─────┐
  │     │     │     │
  │     │     │ Win │
  │     │     │33.3%│
  │     │     │     │
  └─────┴─────┴─────┘
  ```
</ParamField>

### Two-Thirds Columns

<ParamField path="leftTwoThirds" type="WindowDirection">
  Positions window occupying the left two-thirds of the screen.

  **Raw Value:** `"LeftTwoThirds"`

  **URL Scheme:** `loop://LeftTwoThirds`

  **Frame Values:** `CGRect(x: 0, y: 0, width: 2.0/3.0, height: 1.0)` (line 131)

  **Visual:**

  ```
  ┌───────────┬─────┐
  │           │     │
  │  Window   │     │
  │   66.6%   │     │
  │           │     │
  └───────────┴─────┘
  ```

  **Use Case:** Main content area with sidebar on right
</ParamField>

<ParamField path="rightTwoThirds" type="WindowDirection">
  Positions window occupying the right two-thirds of the screen.

  **Raw Value:** `"RightTwoThirds"`

  **URL Scheme:** `loop://RightTwoThirds`

  **Frame Values:** `CGRect(x: 1.0/3.0, y: 0, width: 2.0/3.0, height: 1.0)` (line 128)

  **Visual:**

  ```
  ┌─────┬───────────┐
  │     │           │
  │     │  Window   │
  │     │   66.6%   │
  │     │           │
  └─────┴───────────┘
  ```

  **Use Case:** Main content area with sidebar on left
</ParamField>

## Vertical Thirds

Defined in the static `verticalThirds` array (line 79):

```swift theme={null}
static var verticalThirds: [WindowDirection] { 
    [.topThird, .topTwoThirds, .verticalCenterThird, 
     .bottomTwoThirds, .bottomThird] 
}
```

### Single Third Rows

<ParamField path="topThird" type="WindowDirection">
  Positions window in the top third of the screen.

  **Raw Value:** `"TopThird"`

  **URL Scheme:** `loop://TopThird`

  **Frame Values:** `CGRect(x: 0, y: 0, width: 1.0, height: 1.0/3.0)` (line 133)

  **Visual:**

  ```
  ┌───────────────────┐
  │   Window  33.3%   │
  ├───────────────────┤
  │                   │
  ├───────────────────┤
  │                   │
  └───────────────────┘
  ```
</ParamField>

<ParamField path="verticalCenterThird" type="WindowDirection">
  Positions window in the center third of the screen vertically.

  **Raw Value:** `"VerticalCenterThird"`

  **URL Scheme:** `loop://VerticalCenterThird`

  **Frame Values:** `CGRect(x: 0, y: 1.0/3.0, width: 1.0, height: 1.0/3.0)` (line 135)

  **Visual:**

  ```
  ┌───────────────────┐
  │                   │
  ├───────────────────┤
  │   Window  33.3%   │
  ├───────────────────┤
  │                   │
  └───────────────────┘
  ```
</ParamField>

<ParamField path="bottomThird" type="WindowDirection">
  Positions window in the bottom third of the screen.

  **Raw Value:** `"BottomThird"`

  **URL Scheme:** `loop://BottomThird`

  **Frame Values:** `CGRect(x: 0, y: 2.0/3.0, width: 1.0, height: 1.0/3.0)` (line 136)

  **Visual:**

  ```
  ┌───────────────────┐
  │                   │
  ├───────────────────┤
  │                   │
  ├───────────────────┤
  │   Window  33.3%   │
  └───────────────────┘
  ```
</ParamField>

### Two-Thirds Rows

<ParamField path="topTwoThirds" type="WindowDirection">
  Positions window occupying the top two-thirds of the screen.

  **Raw Value:** `"TopTwoThirds"`

  **URL Scheme:** `loop://TopTwoThirds`

  **Frame Values:** `CGRect(x: 0, y: 0, width: 1.0, height: 2.0/3.0)` (line 134)

  **Visual:**

  ```
  ┌───────────────────┐
  │                   │
  │   Window  66.6%   │
  │                   │
  ├───────────────────┤
  │                   │
  └───────────────────┘
  ```

  **Use Case:** Main workspace with status bar or controls at bottom
</ParamField>

<ParamField path="bottomTwoThirds" type="WindowDirection">
  Positions window occupying the bottom two-thirds of the screen.

  **Raw Value:** `"BottomTwoThirds"`

  **URL Scheme:** `loop://BottomTwoThirds`

  **Frame Values:** `CGRect(x: 0, y: 1.0/3.0, width: 1.0, height: 2.0/3.0)` (line 137)

  **Visual:**

  ```
  ┌───────────────────┐
  │                   │
  ├───────────────────┤
  │                   │
  │   Window  66.6%   │
  │                   │
  └───────────────────┘
  ```

  **Use Case:** Main workspace with toolbar or menu at top
</ParamField>

## Horizontal Fourths

Defined in the static `horizontalFourths` array (line 80):

```swift theme={null}
static var horizontalFourths: [WindowDirection] { 
    [.firstFourth, .secondFourth, .thirdFourth, .fourthFourth, 
     .leftThreeFourths, .rightThreeFourths] 
}
```

### Quarter-Width Columns

<ParamField path="firstFourth" type="WindowDirection">
  Positions window in the first (leftmost) fourth of the screen.

  **Raw Value:** `"FirstFourth"`

  **URL Scheme:** `loop://FirstFourth`

  **Frame Values:** `CGRect(x: 0, y: 0, width: 1.0/4.0, height: 1.0)` (line 139)

  **Visual:**

  ```
  ┌────┬────┬────┬────┐
  │    │    │    │    │
  │Win │    │    │    │
  │25% │    │    │    │
  └────┴────┴────┴────┘
  ```
</ParamField>

<ParamField path="secondFourth" type="WindowDirection">
  Positions window in the second fourth of the screen.

  **Raw Value:** `"SecondFourth"`

  **URL Scheme:** `loop://SecondFourth`

  **Frame Values:** `CGRect(x: 1.0/4.0, y: 0, width: 1.0/4.0, height: 1.0)` (line 140)

  **Visual:**

  ```
  ┌────┬────┬────┬────┐
  │    │    │    │    │
  │    │Win │    │    │
  │    │25% │    │    │
  └────┴────┴────┴────┘
  ```
</ParamField>

<ParamField path="thirdFourth" type="WindowDirection">
  Positions window in the third fourth of the screen.

  **Raw Value:** `"ThirdFourth"`

  **URL Scheme:** `loop://ThirdFourth`

  **Frame Values:** `CGRect(x: 2.0/4.0, y: 0, width: 1.0/4.0, height: 1.0)` (line 141)

  **Visual:**

  ```
  ┌────┬────┬────┬────┐
  │    │    │    │    │
  │    │    │Win │    │
  │    │    │25% │    │
  └────┴────┴────┴────┘
  ```
</ParamField>

<ParamField path="fourthFourth" type="WindowDirection">
  Positions window in the fourth (rightmost) fourth of the screen.

  **Raw Value:** `"FourthFourth"`

  **URL Scheme:** `loop://FourthFourth`

  **Frame Values:** `CGRect(x: 3.0/4.0, y: 0, width: 1.0/4.0, height: 1.0)` (line 142)

  **Visual:**

  ```
  ┌────┬────┬────┬────┐
  │    │    │    │    │
  │    │    │    │Win │
  │    │    │    │25% │
  └────┴────┴────┴────┘
  ```
</ParamField>

### Three-Fourths Width

<ParamField path="leftThreeFourths" type="WindowDirection">
  Positions window occupying the left three-fourths of the screen.

  **Raw Value:** `"LeftThreeFourths"`

  **URL Scheme:** `loop://LeftThreeFourths`

  **Frame Values:** `CGRect(x: 0, y: 0, width: 3.0/4.0, height: 1.0)` (line 143)

  **Visual:**

  ```
  ┌──────────────┬────┐
  │              │    │
  │   Window     │    │
  │    75%       │    │
  │              │    │
  └──────────────┴────┘
  ```

  **Use Case:** Large main workspace with narrow sidebar
</ParamField>

<ParamField path="rightThreeFourths" type="WindowDirection">
  Positions window occupying the right three-fourths of the screen.

  **Raw Value:** `"RightThreeFourths"`

  **URL Scheme:** `loop://RightThreeFourths`

  **Frame Values:** `CGRect(x: 1.0/4.0, y: 0, width: 3.0/4.0, height: 1.0)` (line 144)

  **Visual:**

  ```
  ┌────┬──────────────┐
  │    │              │
  │    │   Window     │
  │    │    75%       │
  │    │              │
  └────┴──────────────┘
  ```

  **Use Case:** Large main workspace with narrow sidebar
</ParamField>

## Layout Examples

### Three-Column Layout (Thirds)

```bash theme={null}
# Create three equal columns
open "loop://LeftThird"            # Window 1: Column 1
open "loop://HorizontalCenterThird" # Window 2: Column 2
open "loop://RightThird"           # Window 3: Column 3
```

```
┌─────┬─────┬─────┐
│  1  │  2  │  3  │
│33.3%│33.3%│33.3%│
└─────┴─────┴─────┘
```

### Main + Sidebar Layout (Two-Thirds)

```bash theme={null}
# Main content with right sidebar
open "loop://LeftTwoThirds"  # Main content: 66.6%
open "loop://RightThird"     # Sidebar: 33.3%
```

```
┌───────────┬─────┐
│   Main    │Side │
│   66.6%   │33.3%│
└───────────┴─────┘
```

### Four-Column Layout (Fourths)

```bash theme={null}
# Create four equal columns
open "loop://FirstFourth"   # Window 1
open "loop://SecondFourth"  # Window 2
open "loop://ThirdFourth"   # Window 3
open "loop://FourthFourth"  # Window 4
```

```
┌────┬────┬────┬────┐
│ 1  │ 2  │ 3  │ 4  │
│25% │25% │25% │25% │
└────┴────┴────┴────┘
```

### Asymmetric Layout (Three-Fourths)

```bash theme={null}
# Large main area with small sidebar
open "loop://LeftThreeFourths"  # Main: 75%
open "loop://FourthFourth"      # Sidebar: 25%
```

```
┌──────────────┬────┐
│     Main     │Side│
│     75%      │25% │
└──────────────┴────┘
```

## Precision Comparison

| Division     | Size          | Use Case             |
| ------------ | ------------- | -------------------- |
| **Halves**   | 50%           | Basic split-screen   |
| **Thirds**   | 33.3% / 66.6% | Asymmetric layouts   |
| **Quarters** | 25%           | Grid layouts         |
| **Fourths**  | 25% / 75%     | Main + small sidebar |

## Related Actions

<CardGroup cols={2}>
  <Card title="Halves & Quarters" href="/api/halves-quarters">
    Simpler split-screen layouts
  </Card>

  <Card title="Size Adjustment" href="/api/size-adjustment">
    Fine-tune window dimensions
  </Card>

  <Card title="General Actions" href="/api/general-actions">
    Maximize and fill actions
  </Card>

  <Card title="WindowDirection Overview" href="/api/window-directions">
    Complete action reference
  </Card>
</CardGroup>