Revit: New Ceiling Grid Pattern, Part 1 – Fill Pattern

In order to have a new ceiling type with a “custom” ceiling grid pattern, you need a Fill Pattern that defines the grid pattern, a Material to which that Fill Pattern can be assigned as a Surface Pattern, and, finally, a Ceiling Type to which that Material can be assigned. While you can start by duplicating a Ceiling Type and drill your way through the various dialogs until you get to the point where you create a new Fill Pattern for the ceiling, and then drill your way back out, I am going to break the process down into three separate steps, so that each step serves as a tutorial for that operation and can be referenced when the need for that operation comes in a different context.

The first step is to create a Fill Pattern that defines the ceiling grid. I am assuming that you have a Fill Pattern file (PAT) that defines a Model type of pattern (as it represents a real-world object, a ceiling grid, that wants to hold the same dimensions, no matter the scale of the view in which…
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