diff --git a/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.cpp b/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.cpp
index f0f7210b8e..6d4da6cabe 100644
--- a/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.cpp
+++ b/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.cpp
@@ -88,6 +88,28 @@ QDialogButtonBox* PdmUiPropertyViewDialog::dialogButtonBox()
     return m_buttonBox;
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QSize PdmUiPropertyViewDialog::sizeHint() const
+{
+    // Ensure the preferred size is never degenerate, regardless of how the contained scroll area
+    // reports its hints.
+    return QDialog::sizeHint().expandedTo( QSize( 300, 200 ) );
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QSize PdmUiPropertyViewDialog::minimumSizeHint() const
+{
+    // The inner scroll area reports an artificially small minimum width, which lets some window
+    // managers open the dialog collapsed (issue #14104). Provide a sensible floor, capped by the
+    // content's preferred size so intentionally small dialogs are not enlarged.
+    QSize floor = QSize( 300, 150 ).boundedTo( QDialog::sizeHint() );
+    return QDialog::minimumSizeHint().expandedTo( floor );
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.h b/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.h
index 24643046c1..e5d59ab908 100644
--- a/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.h
+++ b/Fwk/AppFwk/cafUserInterface/cafPdmUiPropertyViewDialog.h
@@ -57,6 +57,9 @@ public:
 
     QDialogButtonBox* dialogButtonBox();
 
+    QSize sizeHint() const override;
+    QSize minimumSizeHint() const override;
+
 private:
     void initialize( PdmObject* object, const QString& windowTitle, const QString& uiConfigName );
     void setupUi();