Hello, welcome. And in this particular lesson, we're going to take a look at creating walls. Now, walls are absolutely probably the most basic tool that you're going to use in Revit. And you're gonna probably use it the most often. Let's get you familiar with creating walls. Before we get started, I'll like for you to note that I've opened up the walls project from our exercise files. So once you get that open, let's go ahead and follow along. So in this model project that we have opened up, we have two levels. We're on level one so let's go ahead and start the wall tool. We can type out WA as the keyboard shortcut for walls, and that starts the wall tool in Revit. And in the past, we've gone to this tool, and we've come over here to the draw area and we've either drawn by clicking two points to draw based on a line or we've chose the rectangle option, and that allows us to draw a rectangle of walls. Press Escape to temporarily pause the wall tool. We're still in the wall tool. Look at the type selector. Also take note at the status bar. There are other options to place walls as well. There are the options to create it as an inscribed polygon, a circumscribed polygon. You can create a wall with the circle draw. So let's click on this one. And now when we click to place walls, you're able to place the circle by clicking two points and just dragging out. Press the Escape key twice to exit out of the circle command. Let's go ahead and open up our south elevation view. We can double click on it in our project browser. And let's take a look at some settings for our walls that we've just created. I would like to have open our level one view open as well so let's type out WT for window tile to tile our windows, and then click once in one of the windows and type ZA for zoom all. So let's go back to level one, and let's go to the Architecture tab. Let's go to walls. And we're going to accept the basic wall that we have here or if you so choose, you can a different wall if you'd like. But we're just gonna use the generic wall here and we're gonna focus on the options bar settings. So over here, there is the height or depth. The difference between height and depth is these control the constraints of your wall. If it's set to height, then it's the height of the walls from the level that you're on, vertical, in a positive direction. If it's depth, it's vertical in the negative direction. So I'm on level one. If it was for height, the height would be determined to the next level up. If it was depth, it'll be the next level down. I'm gonna leave it at height. And right now it says, unconnected. So notice when I created these walls, they went past any levels that were there which was level two. I'm going to start the wall tool again, and then we're going to choose for the level. I want it to go up to level two. So for this next wall that I'm gonna draw here. If I was to click and drag this wall, notice how this wall stopped at level two. I'm gonna hit Escape twice, select this wall, and here's the wall over here in my south elevation view. It's constrained between levels one and level two. I'm gonna deselect the wall, hit the Escape key, and let's look at some other wall drawing options. Start the wall command again, WA, and there is the location line for the walls. By default it's coming in at the wall center line but you can change it to any of these others, core center line, finished face exterior, finished face interior. The walls can be chained. By default, this is checked. So that means that every time I place a new wall, they are connected. I'm gonna press the Escape key once I'm done placing that string, and I'm gonna click and I'm gonna start a new string. These are all being chained together. Press the Escape key twice. And when I select my walls, are individual walls, but they're just chained together when I re-create it. Press Escape key to finish selecting. So that was a look at placing walls in Revit. Join me in the next lesson where we will take a look at placing doors and windows.