diff --git a/decorations/decorationbridge.h b/decorations/decorationbridge.h
--- a/decorations/decorationbridge.h
+++ b/decorations/decorationbridge.h
@@ -58,6 +58,9 @@
     bool needsBlur() const {
         return m_blur;
     }
+    QString recommendedBorderSize() const {
+        return m_recommendedBorderSize;
+    }
 
     void reconfigure();
 
@@ -67,13 +70,17 @@
 
     QString supportInformation() const;
 
+Q_SIGNALS:
+    void metaDataLoaded();
+
 private:
     void loadMetaData(const QJsonObject &object);
     void findTheme(const QVariantMap &map);
     void initPlugin();
     QString readTheme() const;
     KPluginFactory *m_factory;
     bool m_blur;
+    QString m_recommendedBorderSize;
     QString m_plugin;
     QString m_defaultTheme;
     QString m_theme;
diff --git a/decorations/decorationbridge.cpp b/decorations/decorationbridge.cpp
--- a/decorations/decorationbridge.cpp
+++ b/decorations/decorationbridge.cpp
@@ -191,6 +191,7 @@
 {
     // reset all settings
     m_blur = false;
+    m_recommendedBorderSize = QString();
     m_theme = QString();
     m_defaultTheme = QString();
 
@@ -205,7 +206,13 @@
     if (blurIt != decoSettingsMap.end()) {
         m_blur = blurIt.value().toBool();
     }
+    auto recBorderSizeIt = decoSettingsMap.find(QStringLiteral("recommendedBorderSize"));
+    if (recBorderSizeIt != decoSettingsMap.end()) {
+        m_recommendedBorderSize = recBorderSizeIt.value().toString();
+    }
     findTheme(decoSettingsMap);
+
+    Q_EMIT metaDataLoaded();
 }
 
 void DecorationBridge::findTheme(const QVariantMap &map)
@@ -285,6 +292,7 @@
     QString b;
     b.append(QStringLiteral("Plugin: %1\n").arg(m_plugin));
     b.append(QStringLiteral("Theme: %1\n").arg(m_theme));
+    b.append(QStringLiteral("Plugin recommends border size: %1\n").arg(m_recommendedBorderSize > 0 ? QString(m_recommendedBorderSize) : "No"));
     b.append(QStringLiteral("Blur: %1\n").arg(m_blur));
     const QMetaObject *metaOptions = m_settings->metaObject();
     for (int i=0; i<metaOptions->propertyCount(); ++i) {
diff --git a/decorations/settings.h b/decorations/settings.h
--- a/decorations/settings.h
+++ b/decorations/settings.h
@@ -58,6 +58,7 @@
     QVector< KDecoration2::DecorationButtonType > m_leftButtons;
     QVector< KDecoration2::DecorationButtonType > m_rightButtons;
     KDecoration2::BorderSize m_borderSize;
+    bool m_autoBorderSize = true;
     bool m_closeDoubleClickMenu = false;
 };
 } // Decoration
diff --git a/decorations/settings.cpp b/decorations/settings.cpp
--- a/decorations/settings.cpp
+++ b/decorations/settings.cpp
@@ -19,6 +19,7 @@
 *********************************************************************/
 #include "settings.h"
 // KWin
+#include "decorationbridge.h"
 #include "composite.h"
 #include "virtualdesktops.h"
 #include "workspace.h"
@@ -58,6 +59,7 @@
         }
     );
     connect(Workspace::self(), &Workspace::configChanged, this, &SettingsImpl::readSettings);
+    connect(DecorationBridge::self(), &DecorationBridge::metaDataLoaded, this, &SettingsImpl::readSettings);
 }
 
 SettingsImpl::~SettingsImpl() = default;
@@ -178,7 +180,13 @@
         m_closeDoubleClickMenu = close;
         emit decorationSettings()->closeOnDoubleClickOnMenuChanged(m_closeDoubleClickMenu);
     }
-    const auto size = stringToSize(config.readEntry("BorderSize", QStringLiteral("Normal")));
+    m_autoBorderSize = config.readEntry("BorderSizeAuto", true);
+
+    auto size = stringToSize(config.readEntry("BorderSize", QStringLiteral("Normal")));
+    if (m_autoBorderSize) {
+        /* Falls back to Normal border size, if the plugin does not provide a valid recommendation. */
+        size = stringToSize(DecorationBridge::self()->recommendedBorderSize());
+    }
     if (size != m_borderSize) {
         m_borderSize = size;
         emit decorationSettings()->borderSizeChanged(m_borderSize);
diff --git a/kcmkwin/kwindecoration/kcm.cpp b/kcmkwin/kwindecoration/kcm.cpp
--- a/kcmkwin/kwindecoration/kcm.cpp
+++ b/kcmkwin/kwindecoration/kcm.cpp
@@ -139,6 +139,10 @@
     m_ui->doubleClickMessage->setVisible(false);
     m_ui->doubleClickMessage->setText(i18n("Close by double clicking:\n To open the menu, keep the button pressed until it appears."));
     m_ui->doubleClickMessage->setCloseButtonVisible(true);
+
+    m_ui->pluginBorderSize->setChecked(true);
+    m_ui->borderSizesCombo->setEnabled(false);
+    m_ui->borderSizesLabel->setEnabled(false);
     m_ui->borderSizesCombo->setItemData(0, QVariant::fromValue(BorderSize::None));
     m_ui->borderSizesCombo->setItemData(1, QVariant::fromValue(BorderSize::NoSides));
     m_ui->borderSizesCombo->setItemData(2, QVariant::fromValue(BorderSize::Tiny));
@@ -163,6 +167,12 @@
                 m_ui->doubleClickMessage->animatedHide();
         }
     );
+    connect(m_ui->pluginBorderSize, &QCheckBox::stateChanged, this, [this]() {
+        bool isAutoBorders = m_ui->pluginBorderSize->isChecked();
+        m_ui->borderSizesCombo->setEnabled(!isAutoBorders);
+        m_ui->borderSizesLabel->setEnabled(!isAutoBorders);
+        changed();
+    });
     connect(m_ui->borderSizesCombo, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
             this, [this] (int index) {
             auto listView = m_quickView->rootObject()->findChild<QQuickItem*>("listView");
@@ -308,6 +318,7 @@
     const QString plugin = config.readEntry("library", s_defaultPlugin);
     const QString theme = config.readEntry("theme", s_defaultTheme);
     m_ui->closeWindowsDoubleClick->setChecked(config.readEntry("CloseOnDoubleClickOnMenu", false));
+    m_ui->pluginBorderSize->setChecked(config.readEntry("BorderSizeAuto", true));
     const QVariant border = QVariant::fromValue(stringToSize(config.readEntry("BorderSize", s_borderSizeNormal)));
     m_ui->borderSizesCombo->setCurrentIndex(m_ui->borderSizesCombo->findData(border));
 
@@ -346,6 +357,7 @@
 {
     KConfigGroup config = KSharedConfig::openConfig("kwinrc")->group(s_pluginName);
     config.writeEntry("CloseOnDoubleClickOnMenu", m_ui->closeWindowsDoubleClick->isChecked());
+    config.writeEntry("BorderSizeAuto", m_ui->pluginBorderSize->isChecked());
     config.writeEntry("BorderSize", sizeToString(m_ui->borderSizesCombo->currentData().value<BorderSize>()));
     if (auto listView = m_quickView->rootObject()->findChild<QQuickItem*>("listView")) {
         const int currentIndex = listView->property("currentIndex").toInt();
diff --git a/kcmkwin/kwindecoration/kcm.ui b/kcmkwin/kwindecoration/kcm.ui
--- a/kcmkwin/kwindecoration/kcm.ui
+++ b/kcmkwin/kwindecoration/kcm.ui
@@ -77,6 +77,16 @@
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout_2">
          <item>
+          <widget class="QCheckBox" name="pluginBorderSize">
+           <property name="toolTip">
+            <string extracomment="Use plugin border size &amp;recommendation."/>
+           </property>
+           <property name="text">
+            <string>&amp;Auto border size</string>
+           </property>
+          </widget>
+         </item>
+         <item>
           <spacer name="borderSizesSpacer">
            <property name="orientation">
             <enum>Qt::Horizontal</enum>
@@ -92,7 +102,7 @@
          <item>
           <widget class="QLabel" name="borderSizesLabel">
            <property name="text">
-            <string>Border si&amp;ze:</string>
+            <string>&amp;Manual border size:</string>
            </property>
            <property name="alignment">
             <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>