PartDesign SubtractiveBox

From FreeCAD Documentation

PartDesign SubtractiveBox

Menu location
Part Design → Create a subtractive primitive → Subtractive box
Default shortcut
Introduced in version
See also
PartDesign CompPrimitiveSubtractive, PartDesign AdditiveBox


Inserts a subtractive box in the active Body. Its shape is subtracted from the existing solid.

On the left: active body (A) shown in grey and subtractive box (B) shown in transparent red; result on the right.


  1. Press the Subtractive Box button. Note: the Subtractive Box is part of an icon menu labelled Create a subtractive primitive. After launching FreeCAD, the Subtractive Box is the one displayed in the toolbar. If a different primitive is displayed, click on the down arrow besides the icon and select Subtractive Box in the menu.
  2. Set the Primitive parameters and Attachment.
  3. Click OK.
  4. A Box feature appears under the active Body.


The Box can be edited after its creation in two ways:

  • Double-clicking it in the Model tree, or by right-clicking and selecting Edit primitive in the contextual menu; this brings up the Primitive parameters.
  • Via the Property editor.


  • DataAttachment: defines the attachment mode as well as the Attachment Offset. See Part EditAttachment.
  • DataLabel: Label given to the Box object. Change to suit your needs.
  • DataLength: the Box's dimension in the X-direction.
  • DataWidth: the Box's dimension in the Y-direction.
  • DataHeight: the Box's dimension in the Z-direction.