diff --git a/libs/ui/include/psemek/ui/frame.hpp b/libs/ui/include/psemek/ui/frame.hpp
index af8b0a2a..83a7f238 100644
--- a/libs/ui/include/psemek/ui/frame.hpp
+++ b/libs/ui/include/psemek/ui/frame.hpp
@@ -18,6 +18,8 @@ namespace psemek::ui
 		struct shape const & shape() const override;
 		void reshape(geom::box<float, 2> const & box) override;
 		geom::box<float, 2> size_constraints() const override;
+		geom::interval<float> width_constraints(float height) const override;
+		geom::interval<float> height_constraints(float width) const override;
 
 		void draw(painter &) const override {}
 
diff --git a/libs/ui/source/frame.cpp b/libs/ui/source/frame.cpp
index da7c456d..05417022 100644
--- a/libs/ui/source/frame.cpp
+++ b/libs/ui/source/frame.cpp
@@ -58,4 +58,34 @@ namespace psemek::ui
 		return sc;
 	}
 
+	geom::interval<float> frame::width_constraints(float height) const
+	{
+		auto wc = element::width_constraints(height);
+		if (child_)
+			wc = child_->width_constraints(height);
+
+		if (min_size_)
+			wc.min = std::max(wc.min, (*min_size_)[0]);
+
+		if (max_size_)
+			wc.max = std::min(wc.max, (*max_size_)[0]);
+
+		return wc;
+	}
+
+	geom::interval<float> frame::height_constraints(float width) const
+	{
+		auto wc = element::height_constraints(width);
+		if (child_)
+			wc = child_->height_constraints(width);
+
+		if (min_size_)
+			wc.min = std::max(wc.min, (*min_size_)[1]);
+
+		if (max_size_)
+			wc.max = std::min(wc.max, (*max_size_)[1]);
+
+		return wc;
+	}
+
 }