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Michael Wilson/3 min read

Adding Sloped Walls in Revit 2021: A New Feature Explained

Sloped Walls Explained

Revit 2021 introduced native sloped walls as a wall property — no more in-place families or workarounds. Select a wall and set Cross Section to Slanted, then specify the angle. Walls remain editable, schedulable, and tag normally. The feature works for basic walls, stacked walls, and curtain walls, opening up architectural designs that previously required complex modeling tricks.

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One of the functions that was added with Revit 2021 was the ability to create sloped or slanted walls.

One of the functions that was added with Revit 2021 was the ability to create sloped or slanted walls. You can see here, if I select this wall, I have the opportunity to change the cross-section from vertical to slanted. It’s going to give me this parameter, which will allow me to modify the angle.

If I make this a positive number, it will slant essentially toward us. If I set it to five degrees, it will slant toward us. If I make it negative five, it will slant away.

And that's kind of what we're going for here. You can use whichever values you want. I wouldn’t go too extreme, though, because it starts to get pretty crazy—like you see here, or if you really went for it.

The program doesn’t care how you do it; it’s just going to allow you to make the change. But we’re going to do something like a negative five here.

Then, if we do the same thing with this one on the end—by changing it from vertical to slanted and setting it to a positive five—you can see it will pop out the wall. This is a great option because, if you tried to do this in previous versions of the software, it would have been quite involved. You’d have to create a model-in-place component and adjust it, or you'd have to create a mass and do a wall by face.

So this was a great addition to the software in the year 2020, as part of the 2021 release. Slanted walls also work for curtain walls. If you ever needed to create something like an air traffic control tower, you definitely have the option to change the wall from vertical to slanted.

It will blow apart your wall, so just keep that in mind. If you do that, you’ll see how it didn’t process some of the elements properly.

If I change this one to five degrees, it’s going to do the same thing and give me that slanted look. It gets a little tricky when applied to doors.

This is just an exercise. I'm simply showing you that you can do that. This won’t be part of our project because you can see it disrupts all that hard work we’ve already done.

Now we’ve got the control tower and a door that likely wouldn’t function properly. But you do have the option to do that on projects if the need ever arises. That last step was just me undoing back to where we were.