diff --git a/src/vst/reasampler_editor.cpp b/src/vst/reasampler_editor.cpp
index b66a9d4..dfbbc4e 100644
--- a/src/vst/reasampler_editor.cpp
+++ b/src/vst/reasampler_editor.cpp
@@ -128,8 +128,9 @@ int thumbBins(const BrowserLayout& layout) {
 
 ReaSamplerEditor::ReaSamplerEditor(ReaSamplerProcessor* processor)
     : CPluginView(nullptr), processor_(processor) {
-    // Default view size — sized to show a couple of card rows + the setup strip.
-    ViewRect r(0, 0, 560, 400);
+    // Default view size — 840×560 gives comfortable room for the three-band Sample face
+    // on a 1080p screen (an interim canvas; Wave 2 tunes final band-height numbers).
+    ViewRect r(0, 0, 840, 560);
     setRect(r);
 }
 
@@ -480,6 +481,21 @@ tresult PLUGIN_API ReaSamplerEditor::canResize() {
     return kResultTrue;
 }
 
+tresult PLUGIN_API ReaSamplerEditor::checkSizeConstraint(ViewRect* rect) {
+    // Enforce a minimum usable floor: at least 560 wide and 380 tall. The host calls this
+    // before every resize; clamp the proposed rect in place and return kResultTrue so the
+    // host applies the (possibly adjusted) rect rather than the raw user drag.
+    // 560×380 keeps the title band + toggle band + a couple of card rows + the setup strip
+    // visible; anything smaller would clip essential UI. The default 840×560 is above this
+    // floor — Wave 2 tunes final numbers once the three-band layout is in.
+    constexpr int kMinW = 560;
+    constexpr int kMinH = 380;
+    if (!rect) return kResultFalse;
+    if (rect->getWidth() < kMinW) rect->right = rect->left + kMinW;
+    if (rect->getHeight() < kMinH) rect->bottom = rect->top + kMinH;
+    return kResultTrue;
+}
+
 #ifdef _WIN32
 
 void ReaSamplerEditor::invalidate() {
diff --git a/src/vst/reasampler_editor.h b/src/vst/reasampler_editor.h
index 8f657c4..59f22ab 100644
--- a/src/vst/reasampler_editor.h
+++ b/src/vst/reasampler_editor.h
@@ -56,6 +56,7 @@ public:
     Steinberg::tresult PLUGIN_API isPlatformTypeSupported(
         Steinberg::FIDString type) override;
     Steinberg::tresult PLUGIN_API canResize() override;
+    Steinberg::tresult PLUGIN_API checkSizeConstraint(Steinberg::ViewRect* rect) override;
 
 protected:
     void attachedToParent() override;