Wall with «0» Height
A wall with a height of «0» is a versatile tool in Planoplan. It is used to create openings in floors and ceilings, zone floor and ceiling coverings, form niches, pool outlines, double-height spaces, and other architectural elements. In 3D view, these walls are invisible, but in 2D they allow you to define boundaries for objects and zones with precision.
When to Use a Wall with Zero Height
1. Zoning Floor or Ceiling Coverings
To split a surface into separate zones (for example, tile and wood flooring), follow these steps in the 2D editor:
- Draw a wall along the line where you want the materials to change.
- Select the wall.
- In the «Height» field, enter 0.
- Press Enter.
When you switch to 3D view, you’ll be able to apply different materials to each floor area separated by this wall.

2. Creating Floor/Ceiling Openings (e.g. for a Staircase or Double-Height Space)
To create an opening between floors:
- On the first floor, draw a wall where the opening should be located.
- Set its height to «0».
- Go to Floors Settings and create a copy of the floor.
- On the first floor, disable ceiling visibility in the room where the opening will be.
- On the second floor, disable floor visibility in the same room.
This will result in a visible opening between floors in the 3D editor.
![[Image]: Diagram of two floors: ceiling turned off on the first floor and floor turned off on the second, showing an opening for a staircase.](https://files.planoplan.com/upload/news/202509/83c6c3c9.jpg)
3. Dividing Open Spaces into Zones
You can use zero-height walls to divide an open-plan room into zones and assign them different room types — for example, «Living room» and «Dining room». This is especially useful for project specifications, renders, and documentation.

4. Building a Pool
To create a pool on an existing floor:
- Draw walls along the desired pool outline.
- Set the height of all these walls to «0».
- Select the floor inside the outlined space and disable floor visibility in that room.
- Create a copy of the floor.
- On the new floor, delete everything except the pool outline walls.
- Select those walls and set their height equal to the full floor height.
- Enable floor visibility, and disable ceiling visibility.
- In floor settings, set the floor height to match the pool’s depth - 10 cm (this accounts for slab thickness).
- Move this new floor below the original one.
- If necessary, adjust wall positions on the original floor.

- A wall with «0» height is invisible in 3D, but it affects the geometry of rooms, floor material application, and zone configuration.
- These walls do not affect room volume calculations.
- Using zero-height walls is an efficient way to zone or structure complex designs without cluttering the 3D view.
If you have any questions, found an error, or couldn't find the information you need, please contact us at support@planoplan.com, use the built-in support on the website or in th app (icon in the bottom right corner).