| Wall | Mid surface of the wall body |
WallThickness | AECWall | MidSurface |
| Slab | Top surface of the slab body |
SlabThickness | AECSlab | TopSurface |
| Covering | Bottom surface of the flooring body | FloorThickness SubFloorThickness | AECCovering (FLOORING) | BottomSurface |
| Ceiling | Bottom surface of the ceiling body | CeilingThickness WallOffset CeilingHeight ReservationOffset | AECCovering (CEILING) | BottomSurface |
| Structural Beam | Center curve Profile axis Section |
Designation | AECBeam | CenterCurve SectionAxis Section |
| Structural Column | Center curve Profile axis Section | Designation | AECColumn | CenterCurve SectionAxis Section |
| Structural Brace | Center curve Profile axis Section | Designation | AECMember | CenterCurve SectionAxis Section |
| Structural Beam Pattern | One beam LOD feature for each beam | Designation | AECMember | CenterCurve SectionAxis Section |
| Bar Joist | Datum body of the joist feature | Designation | AECBeam | BarJoistDatum |
| Cast Beam | Center curve Profile Face | - | AECBeam | CenterCurve Section |
| Cast Column | Center curve Profile Face | - | AECColumn | CenterCurve Section |
| Cast Brace | Center curve Profile Face | - | AECMember | CenterCurve Section |
| Cast Beam Pattern | One beam LOD feature for each beam | - | AECMember | CenterCurve Section |
| Freeform Roof | Datum body of the freeform roof | - | AECRoof | FreeformRoofDatum |
| Pitched Roof | Inner surfaces of the roof | RoofThickness RoofPitch RoofOverhang | AECRoof | PitchedRoofSurface |
| Flat Roof | Slab top surface Parapet midsurface | RoofThickness ParapetThickness ParapetHeight | AECRoof | TopSurface ParapetMidSurface |
| Isolated Footing | Top surface of the footing body | Depth | AECFooting (PAD_FOOTING) | TopSurface |
| Strip Footing | Top surface of the footing body | Depth | AECFooting (STRIP_FOOTING) | TopSurface |
| User defined Footing | Top surface of the footing body | Depth | AECFooting (USERDEFINED) | TopSurface |
| Pile Arrangement (Cap) | Datum body of the pile cap | - | AECFooting (PILECAP) | PileCapDatum |
| Pile feature | Profile face Center curve | - | AECPile | CenterCurve ProfileFace |
| Straight Stairs | Datum body of volume | - | AECStair | StairDatum |
| Stairwell | Datum body of volume | - | AECStair | StairwellDatum |
| Circular Stairs | Datum body of volume | - | AECStair | StairDatum |
| Spiral Stairs | Datum body of volume | - | AECStair | StairDatum |
| Space | Datum body of volume | - | AECSpace | SpaceDatum |
| Shaft | Datum body of volume | - | AECSpace | ShaftDatum |
| Pit | Datum body of volume | - | AECSpace | PitDatum |
| Elevator | Datum body of volume | - | AECSpace | ElevatorDatum |
| Concrete Corbels | Mid surface/ Mid section of the corbel body | Width | AECDiscreteAccessoryType | MidSurface |