Making a room without doors is like watching a movie and missing the end. It doesn’t have any sense. However, how can you edit and insert a door with tons of distracting elements around it? How could you know what size fits better in a indoor space? Let’s see!

To start, you need a standard room with holes for your new doors. After that, Press Shift + A to bring up the Add Menu and select the cube to make the first one. Then, scale it and move it to the gaps you have on the walls. Remember to do it in Edit Mode, to not change your model's values, and use the Wireframe Mode to watch how it matches with the rest of the room.

Tip:  make your door relatively thinner than the wall in case of creating a 3D space for animation, this will help you move it better and make it seem more realistic.

How to view a single object

Let’s learn two helpful shortcuts that will simply show you your object. So, if you want to view an object in solid mode but there are many things around, you can select all those elements you want to hide and press H, or you can go to the panel on the right of your screen where you have the list of all the objects you have made, and click on the eye icon to hide.

The second shortcut works when you want to view an isolated object and hide everything else around:

1. First, select the object you want to see.
2. Then, press / (slash key) on your keyboard.

So, Blender is going to put you on a local view. To disable the isolation, you only need to press / (slash key) again.

Note: If you hold Ctrl + H, Blender won’t do anything because “Hide” is different from going to the local view.

Improving the door shape

To have a more detailed and better-looking door, you can easily edit the shape:

1. Select only the faces in front and behind.
2. Press Ctrl + R to create a loop cut in the middle.
3. Select the four faces in front and back.
4. Press I (i) to create an inset and drag to create a little box.

Note: By default, the Inset Tool will recognize those faces as one, even if they are divided. Don’t worry. Press I (i) again to solve it and turn on the individual selection of the Inset Tool.

5. Scale on the X axis by pressing S +X until the size you like.

As you can see, if you return to the Object Mode, it seems that the door doesn’t have any change, so let’s make some little slits in the squares you made with the inset tool:

6. Press G + S + Y to scale it on the Y axis
7. Turn on the Cavity to see it better.

But, if you go to the orthographic view, it still looks flat. That is because the scale you made and the other edges are perfectly aligned between each other. To correct this, you must:

8. Go to Edit Mode.
9. Select the squares.
10. Press S to scale and make it a little smaller.

Finally, don’t forget to add the knob. You can create it only with a cylinder and a sphere, but remember to smooth the surface and join all the elements that compose your door.

Adding some extra details

You are almost ready to finish! But if you want to create a more realistic indoor space, you can add some details like columns around the door:

1. Create a cube on Edit mode.
2. Modify that cube to be a large rectangle.
3. Use the Extrude tool to create a framework around your door.

That’s it! Easy, right?