https://forums.autodesk.com/t5/revit-api-forum/revit-room-boundaries-ignore-slabs/m-p/6789255#M61174 <P>im not sure if i get your issue : the room based level depend on where you create the room. so if you create a room on level 1 it will have a based at level 1, having floor or not. then you can change the base offset manually or in a section view. does that make sense?</P><P>&nbsp;</P> Sat, 07 Jan 2017 03:52:39 GMT Yien_Chao 2017-01-07T03:52:39Z https://forums.autodesk.com/t5/revit-api-forum/revit-room-boundaries-ignore-slabs/m-p/6781788#M61173 <P>In essence: I want to create rooms which are defined ONLY by room boundary lines I created, and NOT by any other elements. I was hoping that by turning OFF the Option "room boundary" for all elements, that the rooms would not be bounded by any elements.</P><P>&nbsp;</P><P>However, the slabs (with the option "room boundary" turned off) are not ignored and create a room boundary. Can this be fixed? Is there perhaps a way to temporarily "hide" all elements for room creation, or somehow tell the room tool to "ignore all" elements?</P> Wed, 04 Jan 2017 12:02:16 GMT https://forums.autodesk.com/t5/revit-api-forum/revit-room-boundaries-ignore-slabs/m-p/6781788#M61173 Anonymous 2017-01-04T12:02:16Z https://forums.autodesk.com/t5/revit-api-forum/revit-room-boundaries-ignore-slabs/m-p/6789255#M61174 <P>im not sure if i get your issue : the room based level depend on where you create the room. so if you create a room on level 1 it will have a based at level 1, having floor or not. then you can change the base offset manually or in a section view. does that make sense?</P><P>&nbsp;</P> Sat, 07 Jan 2017 03:52:39 GMT https://forums.autodesk.com/t5/revit-api-forum/revit-room-boundaries-ignore-slabs/m-p/6789255#M61174 Yien_Chao 2017-01-07T03:52:39Z