Working with Grids
Setting up a grid is very useful at all stages of a design process. In the early phases a grid can help to give scale to your project. It can help you to bring order to the design, and it can help you to generate alignments and common centers. In later stages the grid can be used to communicate placement of objects to the people that will be building your designs.
It is important to select a grid spacing that works with the type of project you are designing. A residential project may benefit from a smaller spacing. 44" or 48" is useful grid spacing for residential architecture because the scale is convenient for building components like doors. A hallway, for example, must be at least 36" wide. If you use a 44" or 48" spacing you will have your 36" width plus an allowance for the thickness of walls. Also, 48" is a common building material module. Typically, drywall comes in sheets of 48".
Larger projects may demand a larger grid spacing. Wright College, for example, is laid out with a 5'-0" grid. The exterior panels of the school are placed at 5'-0" centers. Columns are placed in increments of 5'-0". The ceiling tiles are articulated as 20" squares. Three squares = 5'-0".
The following video explains how to set up a grid in Revit.
G.1. It is recommended for your motor motel that you use a 5'-0" grid. The reason is that the dimensions for many of the rooms are divisible by 5'-0". Go the Level 1 view.
G.2. Make a grid line using the Grid tool.
G.3. Select a column grid and use the Array tool to make multiple copies.
The image below shows a 200' by 150' site with a 5'-0". It is not necessary to change the column numbers. Most of them will be eliminated later. Keep in mind that you can turn the grids on and off as needed by clicking on a grid line, clicking on the eye classes and selecting Hide Category.