Arch Profile

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Arch Profile.svg Arch Profile

Menu location
Arch → Profile
Default shortcut
Introduced in version
See also


The Profile tool builds a parametric 2D profile object. This object can then be used as a base in different other tools that perform extrusions, such as Arch Frame, Arch CurtainWall or Part Extrude.

See the list of available presets.

The profile tool is also integrated to the Arch Structure tool, all preset profiles are also available there.


  1. Press the Arch Profile.svg Arch Profile button
  2. Select a preset in the tool task panel
  3. Click a point in the 3D view to place the profile



  • DataHeight: The overall height of the profile
  • DataWidth: The overall width of the profile
  • DataDiameter: The diameter of the profile (circular profiles only)
  • DataThickness: The thickness of the tube wall (circular and rectangular hollow profiles only)
  • DataWeb Thickness: The thickness of the profile web (H and I profiles only)
  • DataFlange Thickness: The thickness of the profile flange (H and I profiles only)

Adding custom profiles

An additional CSV file can be created by the user, containing custom profile definitions. It must be named profiles.csv, and placed in


The $FREECAD_USER_DIR can be obtained from the Python console:


The contents of your custom profiles.csv file must be modeled upon the same rules as the profiles.csv in the source code.

The CSV file must contain one line per available profile, formatted as follows:

  • For C profiles: Category, Name, Class, Diameter, Thickness
  • For H, U and T profiles: Category, Name, Class, Width, Height, Web thickness, Flange thickness
  • For L profiles: Category, Name, Class, Width, Height, Thickness
  • For R profiles: Category, Name, Class, Width, Height
  • For RH profiles: Category, Name, Class, Width, Height, Thickness

All measures must be in millimeters. Possible profile classes are:

  • C: Circular tube
  • H: H or I profile
  • R: Rectangular
  • RH: Rectangular hollow
  • U: U profile
  • L: L profile
  • T: T profile

Additional profile types can be created, but a corresponding class must first be defined in


The Profile tool can be used in macros and from the Python console by using the following function:

profile = makeProfile(profile_list)

Where profile_list contains the different elements of a list in the CSV file.


import Arch
Arch.makeProfile([0, 'REC', 'REC100x100', 'R', 100, 100])

Where the first element of the list is an order number that is not used yet.