Start your next Revit family with a brief.

A useful family brief includes its category, placement requirements, main dimensions and the variations you need. For MEP equipment, describe the connections as well as the body. For furniture, explain the overall shape, clearances and sizes that matter to your project.

The interactive examples on the overview let you explore connected MEP equipment, furniture and other family concepts. They illustrate the family design workflow; the final geometry and behavior must be checked in Revit.

A parameter name alone does not make geometry parametric. Family Design can connect parameters to dimensions and reference planes so supported geometry follows them. Revit formulas can relate values to each other.

Other values are used when the family is generated and need a rebuild to change its geometry. Be explicit about which dimensions must flex after creation, then test those dimensions across the range your team intends to use.

Family Design generates into a Revit family document. Its workflow includes checks on the definition and native authoring validation in supported clients. It asks for confirmation before replacing existing family content.

Inspect the family in Revit: geometry, category, materials, placement and the behavior of its parameters. For connected equipment, include connector locations and settings in that review. A visual preview is useful for design discussion; those native checks establish how the family behaves in your project.

Start with the essential geometry and a small set of clearly defined parameters. Use follow-up requests to refine the design and check the result at each stage. This makes it easier to see whether a change improved the family or introduced a constraint conflict.

Family Design is part of BimCode for Revit 2025, 2026 and 2027 on Windows. Review the current plans for access to AI features, and keep an internet connection available while you work.