Designing Interior Walls and Core for Building Layout

Creating the Layout for Interior Walls and Core of the Building

Delve into the world of building design with this detailed guide outlining the process of creating the interior of a building, specifically focusing on creating the core, stairwells, and exit stairs. Learn how to refine a rough outline of walls and adjust dimensions to suit specific architectural needs.

Key Insights

  • The initial design process includes creating a rough outline of the building's interior walls. This includes creating the core and stairwells of the building.
  • The design process includes selecting the type of wall to use, ensuring they transition correctly between levels, and setting negative top offsets so the walls sit below the floor deck above.
  • Adjustments are made to the preliminary design by adding dimensions and splitting the plan to create blocks for specific features such as restrooms, a lobby area, and a corridor.

Note: These materials offer prospective students a preview of how our classes are structured. Students enrolled in this course will receive access to the full set of materials, including video lectures, project-based assignments, and instructor feedback.

In this lesson, we're going to focus on the interior of the building now. And the first thing we're going to do is we're going to create the core, which is going to be located in this area. And then we'll create the stairwells, the exit stairs on the sides, which will be over here and here.

And so to do that, the first thing we're going to do is create the rough outline of all these walls. And the first thing we want to do is essentially mock it up, and then we're going to go back in and refine everything. And so I'm going to start by creating some interior walls, and I'll just start my wall tool using keyboard shortcut WA.

And then I'm going to go in and I'm going to pick the wall type I want to use. And we're going to use this interior four and seven eighths partition for most of the walls here. And I want to make sure that they're going from level one to level two.

And then I'm going to give all of these walls a negative top offset of six inches so that they sit below the floor deck above. Right now they're set to wall centerline. I'm going to change it to either finish face interior or exterior.

And then I want it to line up with this portion of the wall here. So I'm going to draw it and I just want to make sure I have it lined up like you see here. And then I'm just going to draw it out this way.

Learn Revit

  • Nationally accredited
  • Create your own portfolio
  • Free student software
  • Learn at your convenience
  • Authorized Autodesk training center

Learn More

And then I'll do the same thing on the other side and draw a wall. And again, I want it to line up on this side here. And you can see we do have a little bit of work to do with that curtain wall cleanup, but that's nothing we can't handle.

And then we're going to create the lobby here. And to do that, I'm just going to go off the back of this column. And I want this wall to just be in this area here.

So I'm just going to drag that end to that point. And so this gives me our lobby area, which will have a stair eventually. And then we have our core, which is going to have restrooms, an elevator, and a couple of housekeeping rooms like electrical or elevator machine room, something like that.

The next thing we'll do is we'll just mock in where the corridor will be. So somewhere like this. And these are just arbitrary points here that I'm setting those.

And then we'll go back in and make the adjustments. So I like to do it that way, because we're just getting ink on paper when we do that. And then we can adjust them by adding the dimensions after the fact, like I've done here.

In order to get this to work out, I'm going to need about 15 feet here. So I'm going to change this dimension. And I did go from center line to center line.

And if we have to adjust it later, we will. But 15 should work out just fine. And then on this side, we're going to make this one nine foot three.

And then this corridor that you see here is going to be continuous. So I'm going to use my split tool, and then trim that out so that I have two blocks here that will then go in and add the rest of our information. And so to do the restrooms, they're going to be split down the middle.

So I could draw a wall, making sure that I change my location line to wall center line. And I can draw it from midpoint here across. And that'll give me the basis for how I can draw the rest of the restroom.

So a little vestibule here. And then we'll have sinks and then our toilets along this wall.

photo of Michael Wilson

Michael Wilson

Revit Instructor

Bachelor of Architecture, Registered Architect

Mike is recognized by Autodesk as one of North America’s leading Revit Certified Instructors. He has significant experience integrating Revit, 3ds Max, and Rhino and uses Revit Architecture on medium and large-scale bio and nano-tech projects. Mike has been an integral member of the VDCI team for over 15 years, offering his hard-charging, “get it done right” approach and close attention to detail. In his spare time, Mike enjoys spending time outdoors with his wife, children, and dog.

  • Autodesk Certified Instructor (ACI GOLD – 1 of 20 Awarded Globally)
  • Autodesk Certified AutoCAD Professional
  • Autodesk Certified Revit Professional
  • Revit
More articles by Michael Wilson

How to Learn Revit

Master Revit, the industry-leading Building Information Modeling (BIM) software, to create precise architectural and structural designs with hands-on training.

Yelp Facebook LinkedIn YouTube Twitter Instagram