diff --git a/python/PyQt6/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in b/python/PyQt6/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in
index 779eefd41c65..0a33faea4c8d 100644
--- a/python/PyQt6/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in
+++ b/python/PyQt6/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in
@@ -285,7 +285,7 @@ points that will not be part of a geometry being digitized.
 %Docstring
 Returns the vector layer within which construction guides are stored.
 
-.. versionadded:: 3.38
+.. versionadded:: 3.40
 %End
 
     bool showConstructionGuides() const;
diff --git a/python/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in b/python/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in
index 2995e16307ea..c3b4f257a5bf 100644
--- a/python/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in
+++ b/python/gui/auto_generated/qgsadvanceddigitizingdockwidget.sip.in
@@ -285,7 +285,7 @@ points that will not be part of a geometry being digitized.
 %Docstring
 Returns the vector layer within which construction guides are stored.
 
-.. versionadded:: 3.38
+.. versionadded:: 3.40
 %End
 
     bool showConstructionGuides() const;
diff --git a/src/gui/qgsadvanceddigitizingdockwidget.cpp b/src/gui/qgsadvanceddigitizingdockwidget.cpp
index fa89b8117b7f..0d616ab07c89 100644
--- a/src/gui/qgsadvanceddigitizingdockwidget.cpp
+++ b/src/gui/qgsadvanceddigitizingdockwidget.cpp
@@ -200,13 +200,13 @@ QgsAdvancedDigitizingDockWidget::QgsAdvancedDigitizingDockWidget( QgsMapCanvas *
   // Construction modes
   QMenu *constructionSettingsMenu = new QMenu( this );
 
-  mRecordConstructionGuides = new QAction( tr( "Record construction guides" ), constructionSettingsMenu );
+  mRecordConstructionGuides = new QAction( tr( "Record Construction Guides" ), constructionSettingsMenu );
   mRecordConstructionGuides->setCheckable( true );
   mRecordConstructionGuides->setChecked( settingsCadRecordConstructionGuides->value() );
   constructionSettingsMenu->addAction( mRecordConstructionGuides );
   connect( mRecordConstructionGuides, &QAction::triggered, this, [ = ]() { settingsCadRecordConstructionGuides->setValue( mRecordConstructionGuides->isChecked() ); } );
 
-  mShowConstructionGuides = new QAction( tr( "Show construction guides" ), constructionSettingsMenu );
+  mShowConstructionGuides = new QAction( tr( "Show Construction Guides" ), constructionSettingsMenu );
   mShowConstructionGuides->setCheckable( true );
   mShowConstructionGuides->setChecked( settingsCadShowConstructionGuides->value() );
   constructionSettingsMenu->addAction( mShowConstructionGuides );
@@ -216,7 +216,7 @@ QgsAdvancedDigitizingDockWidget::QgsAdvancedDigitizingDockWidget( QgsMapCanvas *
     updateCadPaintItem();
   } );
 
-  mSnapToConstructionGuides = new QAction( tr( "Snap to visible construction guides" ), constructionSettingsMenu );
+  mSnapToConstructionGuides = new QAction( tr( "Snap to Visible Construction Guides" ), constructionSettingsMenu );
   mSnapToConstructionGuides->setCheckable( true );
   mSnapToConstructionGuides->setChecked( settingsCadSnapToConstructionGuides->value() );
   constructionSettingsMenu->addAction( mSnapToConstructionGuides );
@@ -224,7 +224,7 @@ QgsAdvancedDigitizingDockWidget::QgsAdvancedDigitizingDockWidget( QgsMapCanvas *
 
   constructionSettingsMenu->addSeparator();
 
-  mClearConstructionGuides = new QAction( tr( "Clear construction guides" ), constructionSettingsMenu );
+  mClearConstructionGuides = new QAction( tr( "Clear Construction Guides" ), constructionSettingsMenu );
   constructionSettingsMenu->addAction( mClearConstructionGuides );
   connect( mClearConstructionGuides, &QAction::triggered, this, [ = ]()
   {
@@ -1957,7 +1957,7 @@ void QgsAdvancedDigitizingDockWidget::enable()
     resetConstructionGuides();
   }
 
-  if ( mDeferedUpdateConstructionGuidesCrs )
+  if ( mDeferredUpdateConstructionGuidesCrs )
   {
     updateConstructionGuidesCrs();
   }
@@ -2310,7 +2310,7 @@ void QgsAdvancedDigitizingDockWidget::updateConstructionGuidesCrs()
 
   if ( !cadEnabled() )
   {
-    mDeferedUpdateConstructionGuidesCrs = true;
+    mDeferredUpdateConstructionGuidesCrs = true;
   }
 
   QgsCoordinateTransform transform = QgsCoordinateTransform( mConstructionGuidesLayer->crs(), mMapCanvas->mapSettings().destinationCrs(), QgsProject::instance()->transformContext() );
@@ -2324,7 +2324,7 @@ void QgsAdvancedDigitizingDockWidget::updateConstructionGuidesCrs()
     mConstructionGuidesLayer->changeGeometry( feature.id(), geom );
   }
 
-  mDeferedUpdateConstructionGuidesCrs = false;
+  mDeferredUpdateConstructionGuidesCrs = false;
 }
 
 void QgsAdvancedDigitizingDockWidget::resetConstructionGuides()
diff --git a/src/gui/qgsadvanceddigitizingdockwidget.h b/src/gui/qgsadvanceddigitizingdockwidget.h
index f4c441c14784..19045d7226cc 100644
--- a/src/gui/qgsadvanceddigitizingdockwidget.h
+++ b/src/gui/qgsadvanceddigitizingdockwidget.h
@@ -313,7 +313,7 @@ class GUI_EXPORT QgsAdvancedDigitizingDockWidget : public QgsDockWidget, private
 
     /**
      * Returns the vector layer within which construction guides are stored.
-     * \since QGIS 3.38
+     * \since QGIS 3.40
      */
     QgsVectorLayer *constructionGuidesLayer() const { return mConstructionGuidesLayer.get(); }
 
@@ -1100,7 +1100,7 @@ class GUI_EXPORT QgsAdvancedDigitizingDockWidget : public QgsDockWidget, private
     std::unique_ptr<QgsVectorLayer> mConstructionGuidesLayer;
     QgsFeatureId mConstructionGuideId;
     QgsLineString mConstructionGuideLine;
-    bool mDeferedUpdateConstructionGuidesCrs = false;
+    bool mDeferredUpdateConstructionGuidesCrs = false;
 
     // Error message
     std::unique_ptr<QgsMessageBarItem> mErrorMessage;
diff --git a/tests/src/app/testqgsadvanceddigitizing.cpp b/tests/src/app/testqgsadvanceddigitizing.cpp
index 8480f611cb83..8589ce67d79b 100644
--- a/tests/src/app/testqgsadvanceddigitizing.cpp
+++ b/tests/src/app/testqgsadvanceddigitizing.cpp
@@ -60,6 +60,8 @@ class TestQgsAdvancedDigitizing: public QObject
 
     void releaseLockAfterDisable();
 
+    void constructionGuides();
+
   private:
     TestQgsMapToolAdvancedDigitizingUtils getMapToolDigitizingUtils( QgsVectorLayer *layer );
     QString getWktFromLastAddedFeature( TestQgsMapToolAdvancedDigitizingUtils utils, QSet<QgsFeatureId> oldFeatures );
@@ -1163,5 +1165,55 @@ void TestQgsAdvancedDigitizing::releaseLockAfterDisable()
   mAdvancedDigitizingDockWidget->enableAction()->trigger();
 }
 
+void TestQgsAdvancedDigitizing::constructionGuides()
+{
+  auto utils = getMapToolDigitizingUtils( mLayer3950 );
+
+  QVERIFY( mAdvancedDigitizingDockWidget->cadEnabled() );
+
+  QCOMPARE( mAdvancedDigitizingDockWidget->constructionGuidesLayer()->featureCount(), 0 );
+
+  mAdvancedDigitizingDockWidget->mRecordConstructionGuides->setChecked( true );
+  mAdvancedDigitizingDockWidget->setConstructionMode( true );
+
+  // enter a few construction steps while guide recording is on
+  utils.mouseClick( 10, 10, Qt::LeftButton );
+  utils.mouseClick( 10, 11, Qt::LeftButton );
+  utils.mouseClick( 10, 12, Qt::LeftButton );
+  utils.mouseClick( 10, 13, Qt::LeftButton );
+  utils.mouseClick( 10, 14, Qt::LeftButton );
+  utils.mouseClick( 20, 01, Qt::RightButton );
+
+  QCOMPARE( mAdvancedDigitizingDockWidget->constructionGuidesLayer()->featureCount(), 1 );
+
+  mAdvancedDigitizingDockWidget->mRecordConstructionGuides->setChecked( false );
+
+  // enter a few construction steps while guide recording is off
+  utils.mouseClick( 10, 10, Qt::LeftButton );
+  utils.mouseClick( 10, 11, Qt::LeftButton );
+  utils.mouseClick( 10, 12, Qt::LeftButton );
+  utils.mouseClick( 10, 13, Qt::LeftButton );
+  utils.mouseClick( 10, 14, Qt::LeftButton );
+  utils.mouseClick( 20, 01, Qt::RightButton );
+
+  QCOMPARE( mAdvancedDigitizingDockWidget->constructionGuidesLayer()->featureCount(), 1 );
+
+  QgsSnappingConfig snapConfig = mCanvas->snappingUtils()->config();
+  snapConfig.setEnabled( true );
+  mCanvas->snappingUtils()->setConfig( snapConfig );
+
+  mAdvancedDigitizingDockWidget->mSnapToConstructionGuides->setChecked( true );
+
+  // snap on an existing constructio guide vertex
+  utils.mouseMove( 10.1, 10 );
+  QCOMPARE( mAdvancedDigitizingDockWidget->currentPointV2(), QgsPoint( 10, 10 ) );
+
+  mAdvancedDigitizingDockWidget->mSnapToConstructionGuides->setChecked( false );
+
+  // do not snap on an existing construction guide vertex
+  utils.mouseMove( 10.5, 14.5 );
+  QGSCOMPARENEARPOINT( mAdvancedDigitizingDockWidget->currentPointV2(), QgsPoint( 10.5, 14.5 ), 0.1 );
+}
+
 QGSTEST_MAIN( TestQgsAdvancedDigitizing )
 #include "testqgsadvanceddigitizing.moc"