| Wall | W | IfcWall | Geometry |
| Length | L | Total nominal length of the wall along the wall center line (even if different to the wall path). | Number |
| Width | W | Total nominal width (or thickness) of the wall measured perpendicular to the wall path. It should only be provided, if it is constant along the wall path. | Number |
| Height | H | Total nominal height of the wall. It should only be provided, if it is constant along the wall path. | Number |
| GrossFootprintArea | G | Area of the wall as viewed by a ground floor view, not taking any wall modifications (like recesses) into account. It is also referred to as the foot print of the wall. | Number |
| NetFootprintArea | N | Area of the wall as viewed by a ground floor view, taking all wall modifications (like recesses) into account. It is also referred to as the foot print of the wall. | Number |
| GrossSideArea | S | Area of the wall as viewed by an elevation view of the middle plane of the wall. It does not take into account any wall modifications (such as openings). | Number |
| NetSideArea | S | Area of the wall as viewed by an elevation view of the middle plane. It does take into account all wall modifications (such as openings). | Number |
| GrossVolume | V | Volume of the wall, without taking into account the openings and the connection geometry. | Number |
| NetVolume | V | Volume of the wall, after subtracting the openings and after considering the connection geometry. | Number |
| GrossWeight | W | Total gross weight of the wall, without add-on parts, not taking into account possible processing features (cut-out's, etc.) or openings and recesses. | Number |
| NetWeight | W | Total net weight of the wall, without add-on parts, taking into account possible processing features (cut-out's, etc.) or openings and recesses. | Number |