---
title: 📦 How to Add and Manage Obstructions
description: Model physical obstacles that impact signal propagation — including buildings, equipment, trees, and shelving — to get realistic RF performance predictions.
---

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# 📦 How to Add and Manage Obstructions

## Model physical obstacles that impact signal propagation — including buildings, equipment, trees, and shelving — to get realistic RF performance predictions.

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### 🔕 Step 1: Turn Off the Heatmap

- This helps you:
  
    - Clearly see the **background image**
    - Avoid **recalculating the heatmap** with every change

---

### 🧱 Step 2: Open Obstruction Tool

- Click on **Obstruction Tool**, or press **O**
- Choose from:
  
    - **Buildings**
    - **Trees**
    - **RVs**
    - **Equipment**
    - **Cars**

---

### ⚙️ Step 3: Define Obstruction Properties

For each obstruction type (e.g., building):

1. Choose a **Material**
2. Review its **attenuation**
3. Define:
   
     - **Wall**, **Floor**, and **Roof** **Thickness**
     - Associated **Attenuation**
4. Set the **Height** and **Frequency**
   
     - eino.ai automatically calculates attenuation for other frequencies

---

### ✏️ Step 4: Draw Obstructions

You have two tools:

- **Rectangle Tool**:
  
    - Click and drag to size and place
- **Scribe Tool**:
  
    - Free-draw any shape
    - Hold **Shift** to snap
    - Close the polygon to complete

---

### 🪄 Step 5: Modify & Duplicate Obstructions

While in **Obstruction Mode**:

- **Select** an obstruction
- Use:
  
    - **Ctrl+C** to **Copy**
    - **Ctrl+V** to **Paste**
    - **Drag** to **Move**
    - **Rotate** to adjust orientation

---

### 🗄️ Step 6: Add Equipment Obstructions

1. Select **Equipment** (e.g., Metal Rack)
2. Set its **Type** and **Height**
3. Place it using the rectangle or scribe tool

---

### 📦 Step 7: Add Shelving (Special Behavior)

1. Choose **Shelving**
2. Set its:
   
     - **Height** (e.g., 24 ft)
     - **Attenuation** across its **width**
3. Only **rectangle shapes** are allowed (to maintain consistent width-to-attenuation mapping)
4. eino.ai automatically applies attenuation for other materials

---

### 🧭 Step 8: View in 3D

- Switch to **3D View**
- You'll see:
  
    - **Shelves**, **Buildings**, **Equipment**, etc.
    - All with **accurate heights and shapes**

- [Video Tutorials](https://knowledge.eino.ai/video-tutorials?hsLang=en)

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