diff --git a/src/layouts/QskGridBox.cpp b/src/layouts/QskGridBox.cpp
index 225989f5..a457068a 100644
--- a/src/layouts/QskGridBox.cpp
+++ b/src/layouts/QskGridBox.cpp
@@ -7,6 +7,7 @@
 #include "QskGridLayoutEngine.h"
 #include "QskEvent.h"
 #include "QskQuick.h"
+#include <qdebug.h>
 #include <algorithm>
 
 static void qskSetItemActive( QObject* receiver, const QQuickItem* item, bool on )
@@ -470,4 +471,53 @@ bool QskGridBox::event( QEvent* event )
     return Inherited::event( event );
 }
 
+void QskGridBox::dump()
+{
+    const auto& engine = m_data->engine;
+
+    auto debug = qDebug();
+
+    QDebugStateSaver saver( debug );
+    debug.nospace();
+    
+    const auto constraint = sizeConstraint();
+
+    debug << "QskGridBox" 
+        << "[" << engine.columnCount() << "," << engine.rowCount() << "] w:"
+        << constraint.width() << " h:" << constraint.height() << '\n';
+
+    for ( int i = 0; i < engine.count(); i++ )
+    {
+        const auto grid = engine.gridAt( i );
+
+        debug << "  [";
+
+        debug << grid.left();
+        if ( grid.width() > 1 )
+            debug << "-" << grid.right();
+        debug << ",";
+
+        debug << grid.top();
+        if ( grid.height() > 1 )
+            debug << "->" << grid.bottom();
+
+        debug << "]: ";
+
+        if ( auto item = engine.itemAt( i ) )
+        {
+            const auto constraint = qskSizeConstraint( item, Qt::PreferredSize );
+
+            debug << item->metaObject()->className()
+                <<  " w:" << constraint.width() << " h:" << constraint.height();
+        }
+        else
+        {
+            const auto size = engine.spacerAt( i );
+            debug << "spacer w:" << size.width() << " h:" << size.height();
+        }
+
+        debug << '\n';
+    }
+}
+
 #include "moc_QskGridBox.cpp"
diff --git a/src/layouts/QskGridBox.h b/src/layouts/QskGridBox.h
index 35515a99..246f1c12 100644
--- a/src/layouts/QskGridBox.h
+++ b/src/layouts/QskGridBox.h
@@ -108,6 +108,8 @@ class QSK_EXPORT QskGridBox : public QskBox
     Q_INVOKABLE void setRowFixedHeight( int row, qreal height );
     Q_INVOKABLE void setColumnFixedWidth( int column, qreal width );
 
+    void dump();
+
   public Q_SLOTS:
     void invalidate();
     void clear( bool autoDelete = false );
diff --git a/src/layouts/QskLinearBox.cpp b/src/layouts/QskLinearBox.cpp
index f162c69a..6480d82e 100644
--- a/src/layouts/QskLinearBox.cpp
+++ b/src/layouts/QskLinearBox.cpp
@@ -532,4 +532,37 @@ int QskLinearBox::stretchFactor( const QQuickItem* item ) const
     return stretchFactor( indexOf( item ) );
 }
 
+void QskLinearBox::dump()
+{           
+    const auto& engine = m_data->engine;
+        
+    auto debug = qDebug();
+            
+    QDebugStateSaver saver( debug );
+    debug.nospace();
+        
+    const auto constraint = sizeConstraint();
+        
+    debug << "QskLinearBox" << engine.orientation()
+        << " w:" << constraint.width() << " h:" << constraint.height() << '\n';
+
+    for ( int i = 0; i < engine.count(); i++ )
+    {
+        debug << "  " << i << ": ";
+
+        if ( auto item = engine.itemAt( i ) )
+        {
+            const auto constraint = qskSizeConstraint( item, Qt::PreferredSize );
+            debug << item->metaObject()->className()
+                <<  " w:" << constraint.width() << " h:" << constraint.height();
+        }
+        else
+        {
+            debug << "spacer: " << engine.spacerAt( i );
+        }
+
+        debug << '\n';
+    }
+}
+
 #include "moc_QskLinearBox.cpp"
diff --git a/src/layouts/QskLinearBox.h b/src/layouts/QskLinearBox.h
index d0bbe3b3..59c962a0 100644
--- a/src/layouts/QskLinearBox.h
+++ b/src/layouts/QskLinearBox.h
@@ -88,6 +88,8 @@ class QSK_EXPORT QskLinearBox : public QskIndexedLayoutBox
     void setStretchFactor( const QQuickItem*, int stretchFactor );
     int stretchFactor( const QQuickItem* ) const;
 
+    void dump();
+
   public Q_SLOTS:
     void transpose();
     void activate();
diff --git a/src/layouts/QskStackBox.cpp b/src/layouts/QskStackBox.cpp
index 452e2021..24a51afc 100644
--- a/src/layouts/QskStackBox.cpp
+++ b/src/layouts/QskStackBox.cpp
@@ -404,4 +404,33 @@ bool QskStackBox::event( QEvent* event )
     return Inherited::event( event );
 }
 
+void QskStackBox::dump()
+{
+    auto debug = qDebug();
+
+    QDebugStateSaver saver( debug );
+    debug.nospace();
+
+    const auto constraint = sizeConstraint();
+
+    debug << "QskStackBox"
+        << " w:" << constraint.width() << " h:" << constraint.height() << '\n';
+
+    for ( int i = 0; i < m_data->items.count(); i++ )
+    {
+        const auto item = m_data->items[i];
+
+        debug << "  " << i << ": ";
+
+        const auto constraint = qskSizeConstraint( item, Qt::PreferredSize );
+        debug << item->metaObject()->className()
+            <<  " w:" << constraint.width() << " h:" << constraint.height();
+
+        if ( i == m_data->currentIndex )
+            debug << " [X]";
+
+        debug << '\n';
+    }
+}
+
 #include "moc_QskStackBox.cpp"
diff --git a/src/layouts/QskStackBox.h b/src/layouts/QskStackBox.h
index 95082003..3c0bc9e8 100644
--- a/src/layouts/QskStackBox.h
+++ b/src/layouts/QskStackBox.h
@@ -55,6 +55,8 @@ class QSK_EXPORT QskStackBox : public QskIndexedLayoutBox
 
     QRectF geometryForItemAt( int index ) const;
 
+    void dump();
+
   Q_SIGNALS:
     void defaultAlignmentChanged( Qt::Alignment );