Revit is considered the best choice by architects, engineers, BIM modelers and technicians working in AEC industry for creating families. Families are basically used by BIM modelers while executing Revit modeling services. That makes Revit and Revit modeling services an integral part of construction project execution. Family size matters a lot when it comes to designing a building. In Revit technicians have the luxury to control family size as per the requirement of their project. If in case a smaller size door is required for one of the rooms in the building it can be easily created by using the Family Editor tool of Revit. Revit Family Editor has vital features for developing custom families. The Family size can be controlled by BIM modelers by assigning required dimensions for the family. In other words the geometry of the family can be easily controlled by assigning parameters in Revit. Take an example of door family; it’s up to Revit modelers what dimensions they want to a