You can modify and use the Magic cube tool to create and place ceiling beams. This video explains the process in more details:
Step 1. Prepare your room
First, open your project and make sure your room has a pitched roof.
If you haven't added a roof yet, you can find one under Construction → Roofs.
Switch to 3D mode to check how your roof looks. If a flat ceiling is blocking the space beneath the roof, select the room and hide its ceiling in the room settings.
You'll now have a clear view of the space where your wooden beams will be placed.
Step 2. Create your first wooden beam
Switch to 2D mode.
Open Construction → Forms → Magic Cube
Place a Magic Cube in your project.
Select the cube to open its size settings.
Adjust its dimensions to create a long, rectangular beam.
For example, you can start with:
Width: 15 cm
Height: 20 cm
Depth (length): 370 cm
These are example measurements. You can adjust them depending on the size of your room and the slope of your roof.
Step 3. Apply a wooden texture
Now let's make your beam look like wood!
Select the beam.
Select 'All sides' to customize all sides of the cube with one go.
Open the Materials menu using the paint roller icon.
Choose your preferred wooden texture.
Apply it to the beam.
It's best to choose the material now so that any copies you create later will have the same appearance.
Step 4. Position the beam under the roof
This is where you'll turn your rectangular object into a sloped ceiling beam.
Switch to 3D mode and select your beam.
Use Levitation or Above the floor to raise it toward the ceiling.
Adjust its rotation to match the angle of your roof.
Move the beam so that its lower end rests near the top of one side wall and its upper end reaches the roof's highest point.
You may need to adjust the length, angle, and height several times until the beam fits correctly.
Tip: On the Web version, you can hold Shift while dragging the rotation control in 3D to tilt the beam.
Step 5. Create the second sloped beam
Once you're happy with your first beam, there's no need to build another from scratch!
Select your finished beam and click Duplicate.
Move the copy to the opposite side of the roof.
Rotate it in the opposite direction.
Align the upper ends of both beams so they meet at the roof's highest point.
You should now have two beams forming an inverted V shape that follows your pitched roof.
Step 6. Add a horizontal beam
To complete the wooden frame, you can connect the two sloped beams with a horizontal crosspiece.
Add another Magic Cube.
Resize it into a long, horizontal beam.
Apply the same wooden texture.
Rotate and raise it to your preferred height.
Position it between the two sloped beams, making sure both ends connect.
Step 7. Duplicate the frame across the room
Instead of creating every beam individually, you can duplicate the ones you've already made.
Switch to 2D mode.
Select all beams at once by holding Cmd (Mac) or Ctrl (Windows) and clicking each beam.
Duplicate them together to preserve their exact positioning relative to each other.
Move the copies together along the length of the room.
Repeat until you have the desired number of frames.
Try to keep the distance between the frames equal for a balanced appearance.
For example, you could use four wooden frames evenly spaced across the room.
Tip: After placing a new frame, switch to 3D to make sure all its beams are aligned correctly.
Step 8. Check your design in 3D
Once all the frames are in place, switch to 3D mode and inspect your ceiling from different angles.
Make sure that:
The sloped beams follow the roof angle.
The upper ends meet without gaps.
The horizontal beams connect correctly.
All frames are evenly spaced.
No beams extend through the roof or walls.
You can select any individual beam to adjust its size, elevation, or rotation.