![revit stair by sketch by component differences revit stair by sketch by component differences](https://help.autodesk.com/cloudhelp/2019/ENU/Revit-Model/images/GUID-8675CF05-AE40-419B-AC00-EBC3EAAE70F3.png)
The second, offset "L" step in an L-shaped stair but with a different angle, offset steps are applied diagonally instead of placing the classic landing. The first one is commonly known as a spiral staircase, that is, a curved staircase in which we will have to indicate the radius of the staircase, as well as the entry and exit points of the staircase. However, Revit offers us three types of predefined stairs: "spiral through center and endpoints", "L-offset" and "U-offset" stair. As in the ramps, we can model them by sections and/or contour, the difference being exactly the same as that described in the previous section. In the case of stairs, as we have mentioned previously, we have to bear in mind that stairs are the most complex elements of Revit. Save this picture! Courtesy of GoPillar Academy The big difference between this ramp and contour-modeled ramps is that the route of the non-contour ramps will always have the same section, and in the second option, we can vary the section during its route. This process joins two levels by means of a curved or straight ramp, simply marking its route. The first of the two options – by section– turns out to be the simplest and most standard method. In the particular case of ramps, there are two clear ways to model them: by sections and by contour. However, these elements will probably be an aspect of modeling that will bring us the most difficulties in the project phase. Thanks to great advances in project modeling using BIM methodology and Revit software, these calculations can be made with greater ease. Do they comply with current regulations in my country? Do they adapt to the project standards? Will they be accurately calculated? stair, two runs (a switchback stair), a spiral, and a custom with sketch in. It has always been difficult to avoid calculating the ramp’s slope, as well as the dimensions of the footprint and riser of the communication staircase between two floors of a building. Understanding BIM and the Revit element hierarchy.
![revit stair by sketch by component differences revit stair by sketch by component differences](https://i.imgur.com/a3GgMif.png)
One of the great difficulties we encounter with “classic” plan delineation methodologies are ramp and stair projections.