# Create a 3D Floor Plan: Draw Walls and Rooms This page guides you through the essential steps to design a 2D floor plan, from creating walls to precisely adjusting dimensions. You'll find detailed explanations for drawing, closing a room, editing lengths, and dividing a wall into multiple sections. Whether you're just starting or refining your project, these tools will help you structure your spaces with precision. # 1. Drawing Walls ![](https://outline-production-attachments.s3-accelerate.amazonaws.com/uploads/c7f3c911-90d7-4d33-8983-a110326e0348/82ea00d8-4a8f-4211-8319-521cff64d6c3/wall-add-EN.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA4EOUDTOVUICLPZ4P%2F20260826%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260826T074500Z&X-Amz-Expires=86400&X-Amz-Signature=36f9703157da7a57ed2768c934bed2385340d8db2d552483d393078532337ea8&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject " =829.5x291") 1. **Access the Wall Tool**: In the "Drawing Tools" side panel, choose one of the predefined wall types: **•** **Exterior / Bearing Wall**: 30 cm thick by default, designed for structural support. **•** **Interior / Partition Wall**: 10 cm thick by default, used to divide spaces. 2. **Draw a Wall**: Click a starting point in the drawing area, then move the mouse to draw the wall. A dotted blue orthogonality guide will appear automatically to help you align. 3. **Adjust the Length**: The wall’s length is displayed in blue in real time. You can then enter an exact value using the keyboard (see below: [Adjusting the length of a wall](https://spacedesigner3d.getoutline.com/doc/drawing-walls-and-rooms-YZOJvkw5rd#h-31-wall-length)). 4. **Finish the wall**: Click at the desired location to complete the wall—either by closing a room, connecting to another wall, or pressing the `Esc` key to stop drawing. # 2. Creating a Room ## 2.1. Using the Wall Tool ![](https://outline-production-attachments.s3-accelerate.amazonaws.com/uploads/c7f3c911-90d7-4d33-8983-a110326e0348/862a40e9-17a7-4bf5-a5cc-dcf815a1f1c6/walls-room-closed.gif?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA4EOUDTOVUICLPZ4P%2F20260826%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260826T074500Z&X-Amz-Expires=86400&X-Amz-Signature=06226848daffb9de235cdea8416b9915ecbfe2ea935042e085a60d9a72d53f5f&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject " =608x342") When you **close a space with connected walls**, the software automatically detects the room. The floor will only appear if all walls and points are properly connected. The tool detects **orthogonality** when you move the cursor close to a point where the perpendicular wall should connect. ## 2.2. Using the Rectangular Room Tool The **Rectangular Room** drawing tool is accessible directly from the Drawing Tools menu. To draw a room, place the cursor at the desired location: a red cross will appear to mark the starting point. **Click and hold the left mouse button while dragging to draw the rectangle.** Release to confirm the shape, then adjust the room dimensions as explained below. ![](https://outline-production-attachments.s3-accelerate.amazonaws.com/uploads/c7f3c911-90d7-4d33-8983-a110326e0348/c18a46f7-4761-46f1-ad18-61cc771d4338/rectangular-room7.gif?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA4EOUDTOVUICLPZ4P%2F20260826%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260826T074500Z&X-Amz-Expires=86400&X-Amz-Signature=f38a4eed2a5b139a1730e3196208c62ac2ffc27f1cf575991d9059893678cb25&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject " =471x314") # 3. Adjusting Dimensions ## 3.1. Of a Wall ![](https://outline-production-attachments.s3-accelerate.amazonaws.com/uploads/c7f3c911-90d7-4d33-8983-a110326e0348/dac97778-5262-4f8c-abcc-5571f0d3cfa5/wall-extend-EN.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA4EOUDTOVUICLPZ4P%2F20260826%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260826T074500Z&X-Amz-Expires=86400&X-Amz-Signature=08cf3d938c9e5dc68340b3d76c9376abec10af31904910d0f8fa3e9b52fbd455&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject " =456x233") 1. **Select the wall**: Click on the wall you want to modify. 2. **Move an endpoint**: Click on the wall’s handle to adjust it. 3. **Enter an exact value**: Type the desired dimension in the input field. 4. **Confirm**: Press `Enter` to validate the new wall length. ## 3.2. Of a Room ![](https://outline-production-attachments.s3-accelerate.amazonaws.com/uploads/c7f3c911-90d7-4d33-8983-a110326e0348/5107c5e0-8e1f-4c2e-a717-6bd4a0ffe215/walls-distances.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA4EOUDTOVUICLPZ4P%2F20260826%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260826T074500Z&X-Amz-Expires=86400&X-Amz-Signature=b897dbfa524697e8133a74154d2302312f318cb288ffc0117be7a156b91c3798&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject " =456x376") 1. **Select the wall** you want to move. 2. **Edit the dimension**: An input field appears. Enter the desired dimension, then press `Enter` to confirm. 3. **Choose the measurement mode**: Two types of measurements are available. Select the appropriate icon: 1. **Distance between wall centerlines** 2. **Distance from wall to wall** ![a. Distance between wall centerlines│b. Distance from wall to wall](https://outline-production-attachments.s3-accelerate.amazonaws.com/uploads/c7f3c911-90d7-4d33-8983-a110326e0348/f0913156-92ff-4387-bf42-98dd3406c5ad/walls-axis.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA4EOUDTOVUICLPZ4P%2F20260826%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260826T074500Z&X-Amz-Expires=86400&X-Amz-Signature=eb74364a5fe26967556d9edfe72e489272791282c710ebd02d56e7a693966b52&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject " =456x360") # 4. Dividing a Wall There are several ways to divide a wall depending on your needs. :::tip **To quickly split a wall in half**, press the Space key. This instantly divides the selected wall into two equal parts without using the menu. ::: Here are the other wall division options in the properties menu: ![](https://outline-production-attachments.s3-accelerate.amazonaws.com/uploads/c7f3c911-90d7-4d33-8983-a110326e0348/27e2edc0-f830-4783-8900-80efb6409db4/walls-divide-EN.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA4EOUDTOVUICLPZ4P%2F20260826%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260826T074500Z&X-Amz-Expires=86400&X-Amz-Signature=e1b39b21ac5fe31c4e6736abb71bc54ae539128068418f6646ae11a90b6fb36a&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject " =314x242.5") 1. **Divide the wall manually**: Allows you to divide a wall by clicking directly at the desired location. 2. **Divide at regular intervals**: You can set a specific distance in centimeters to divide the wall into equal sections. For example, entering 100 cm will divide the wall into segments of that length. 3. **Divide into equal parts**: This option allows you to split the wall into a defined number of identical sections. For example, entering 4 will divide the wall into four equal parts. This is useful if you want to apply different materials to each wall section. 4. **Divide at intersections with other walls**: This option is useful if you want the wall to be automatically divided where it intersects other walls, avoiding manual adjustments. :::info **More illustrated information on the different wall division methods** is available in the Actions section of the Wall Properties Menu. ::: --- **Documents** - [1. Getting Started with Space Designer 3D](https://spacedesigner3d.getoutline.com/s/space-designer-doc/doc/1-getting-started-with-space-designer-3d-tbTmJC7rsh) - [2. Managing Your Space Designer 3D Account](https://spacedesigner3d.getoutline.com/s/space-designer-doc/doc/2-managing-your-space-designer-3d-account-9oEJwFd2ZD) - [3. FAQ – Frequently Asked Questions About Space Designer 3D](https://spacedesigner3d.getoutline.com/s/space-designer-doc/doc/3-faq-frequently-asked-questions-about-space-designer-3d-xeBxyRcBPk)