Join Paul F. Aubin for an in-depth discussion in this video Adding grids, part of Revit 2018: Essential Training for Architecture (Imperial).
- [Voiceover] In this movie, we're going to layout a basic column grid for our building. So, I've created some walls here in this file, just as a reference just so that we have some idea of where to place the grids. Now, grids are datum elements, but they run vertically as opposed to levels which we looked at in the previous movie which run horizontally. But otherwise, both of these datum elements are very similar in the fact that they establish a plane that you can use to reference other geometry. Now, the primary purpose of grids is to reference where your structure is. So, that would include columns or beams and so on, and obviously the type of building that you're designing will dictate whether or not it needs grids.
If you're doing load-bearing construction, and you don't really have any columns, then you might not choose to make any grids in that kind of a project. This would be true in like single family homes and so on like that. But in more commercial type structures, you're probably going to have a column grid, and so laying out those grids pretty early on, just like we did with the levels, is going to be an important task. Now in a lot of ways, if you know how to work with levels, you already kind of know how to work with grids. The only thing that is really different about them is they run vertically instead of horizontally. So, let's take a look. I'm working here in a Floor Plan, which is fine for grids, even though with levels, I had to switch to Elevation or Section.
But here with grids, I can work directly in Floor Plan. Now, I'm going to click the Grid tool here on the ribbon, and you'll notice here that there is actually a few different shapes. So, it's possible to draw straight grids or curved grids, or even multi-segment grids. Now, this simple building that we're going to layout only requires straight grids. For the first grid, I'm going to start somewhere down here; below the building a little to the inside of the left hand wall, and I'm going to click my first point. The first point you click will typically be empty, and the second point you click will have the bubble.
So, notice as I move my mouse here, the bubble is attached to wherever I put my cursor. Now, you'll also notice that you can draw these grids at any angle you like. They don't have to be perfectly horizontal or vertical. Now, in this case, it probably makes sense to keep it vertical so that it matches the orientation of the building. But if you wanted to be off at an angle, you could easily do that. Now, I'm going to cancel the command using the Modify tool right here. I'm going to roll my wheel to zoom in a little bit, and notice that the grid automatically went to grid number 1.
Now, this is really important to understand how Revit deals with numbering. What I'd like you to do is actually select this grid, and delete it. I'm going to zoom back out, and I'm going to add a new grid in its place. So, back to Grid, I'll start down here, again at the same general location, below the building but to the right of that left hand wall, and this time I want to make sure that I am pulling it straight up and staying parallel to that exterior wall, so 90 degrees, and then I'll click, and notice that this bubble came in as number 2.
So, that's really important to understand is that even though you deleted number 1, Revit remembers that number 1 was there before, and it just goes to the next number in sequence. So, this is really important before you continue, because otherwise you'd have to renumber all of these grids later. But, you can actually renumber it right here as you're drawing it, and all we have to do to do that is if you put your mouse right over the number, it'll say "Edit Parameter" on a tool tip, and then you can click and change that value.
Now, you can put in a different number or you could even put in a letter, and in this case, I'm going to put in capital letter A, and press Enter, and that will make that grid bubble A. Now, I'm going to start down here, next to the one that I just created. You should notice a small little extension line snapping to that endpoint. I want to be to left side of that next wall over, and I'll click and I'll pull it straight up until it snaps right there. I'll make another one, just to the inside of this wall here.
One right here about halfway, and then finally Grid E is going to be there. Now, I'm roughing these in, in the approximate locations that I want them to occur in. I'll go ahead and roll my wheel a little bit just to zoom in a little closer so we can see what we have here. Next, I can change direction. So, I'm going to start right about here, above the bottom wall, and draw one that's perfectly horizontal, going in the other direction, and now you'll notice that that came in as Grid F. So again, it's really important that you stop, click on F, and change that if you want to change the designation to numbers now.
So, I'll put in number 1, and that becomes my first grid there, grid number 1. I'll do the next one right here. I'll do another one about halfway over here, and then finally my last one right there. Now, I wanted to make them all parallel to one another, and I've snapped all the endpoints together on the left hand side, but I'm going to go to my Modify tool to cancel out of the command, or you can press the Escape key twice, and on this side, they're going to behave exactly like we saw with levels in the previous movie.
If you use the little open circle grip, they all stretch together because they're all locked together at that end, but notice how on this side, Grid 4, for example, moves independently. Grids 1 and 2 will work together, because they were snapped together, but Grids 3 and 4 are independent. Well, if you decided that that was a mistake or you changed your mind, all you have to do is grab this little grip, and drag it over until it snaps to the neighbor, and when you let go, it will lock together and now these will work together again.
So, it's really easy to decide later that you want them snapped together. If you decided you wanted to remove that, you just simply unlock it and drag it again. So, really easy to change your mind about how you want it to behave. Similar to what we saw in levels, you can use the small little check mark here to decide which end you want to show the bubble on, and you can even show it on both ends if you want to. So, grid elements are very similar to levels in a lot of ways. You can think of them as a plane.
They are a plane, but in this case they run vertically through the building, instead of running horizontally and parallel to the ground, and we're going to use the intersections of the grids to locate the columns and the other structural elements within our project.
First, get comfortable with the Revit environment, and learn to set up a project and add the grids, levels, and dimensions that will anchor your design. Then author Paul F. Aubin helps you dive into modeling: adding walls, doors, and windows; using joins and constraints; creating and mirroring groups; linking to external assets and DWG files; and modeling floors, roofs, and ceilings.
Paul also shows advanced techniques for modeling stairs and complex walls, adding rooms, and creating schedules. Finally, discover how to annotate your drawings so all the components are clearly understood, and learn how to output sheets to DWF, PDF, or AutoCAD.
- Understanding BIM and the Revit element hierarchy
- Navigating views
- Creating a new project from a template
- Adding walls, doors, and windows
- Adding plumbing fixtures and other components
- Linking AutoCAD DWG files
- Rotating and aligning Revit links
- Working with footprint and extrusion roofs
- Adding openings
- Adding railings and extensions to stairs
- Creating stacked and curtain walls
- Hiding and isolating objects
- Adding rooms
- Creating schedule views and tags
- Adding text and dimensions
- Creating new families
- Using reference planes, parameters, and constraints
- Plotting and creating a PDF