diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 54e4815a6..842e27eac 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -7590,7 +7590,7 @@ static Points to_points(const std::vector<Vec2d> &dpts)
     return pts;
 }
 
-static Polygon get_shared_poly(const std::vector<Pointfs>& extruder_polys)
+Polygon get_shared_poly(const std::vector<Pointfs>& extruder_polys)
 {
     Polygon result;
     for (int index = 0; index < extruder_polys.size(); index++)
diff --git a/src/libslic3r/PrintConfig.hpp b/src/libslic3r/PrintConfig.hpp
index 664b58232..2e2d36d56 100644
--- a/src/libslic3r/PrintConfig.hpp
+++ b/src/libslic3r/PrintConfig.hpp
@@ -1529,6 +1529,7 @@ private:
     static PrintAndCLIConfigDef s_def;
 };
 
+Polygon get_shared_poly(const std::vector<Pointfs>& extruder_polys);
 Points get_bed_shape(const DynamicPrintConfig &cfg, bool use_share = true);
 Points get_bed_shape(const PrintConfig &cfg, bool use_share = false);
 Points get_bed_shape(const SLAPrinterConfig &cfg);
diff --git a/src/slic3r/GUI/PartPlate.cpp b/src/slic3r/GUI/PartPlate.cpp
index 2d1898f69..a13934d4a 100644
--- a/src/slic3r/GUI/PartPlate.cpp
+++ b/src/slic3r/GUI/PartPlate.cpp
@@ -2479,6 +2479,32 @@ const BoundingBox PartPlate::get_bounding_box_crd()
 	return plate_shape.bounding_box();
 }
 
+BoundingBoxf3 PartPlate::get_build_volume(bool use_share)
+{
+    auto  eps=Slic3r::BuildVolume::SceneEpsilon;
+	Vec3d up_point;
+	Vec3d low_point;
+	if (use_share && !m_extruder_areas.empty()) {
+		Polygon bed_poly = get_shared_poly(m_extruder_areas);
+		BoundingBox bbox = bed_poly.bounding_box();
+
+		up_point = Vec3d(unscale_(bbox.max.x()) + eps,  unscale_(bbox.max.y()) + eps, m_origin.z() + m_height + eps);
+		low_point = Vec3d(unscale_(bbox.min.x()) - eps, unscale_(bbox.min.y()) - eps, m_origin.z() - eps);
+	}
+	else {
+		up_point = Vec3d(m_origin.x() + m_width + eps, m_origin.y() + m_depth + eps, m_origin.z() + m_height + eps);
+		low_point = Vec3d(m_origin.x() - eps, m_origin.y() - eps, m_origin.z() - eps);
+		if (m_raw_shape.size() > 0) {
+			up_point.x() += m_raw_shape[0].x();
+			up_point.y() += m_raw_shape[0].y();
+			low_point.x() += m_raw_shape[0].x();
+			low_point.y() += m_raw_shape[0].y();
+		}
+	}
+    BoundingBoxf3 plate_box(low_point, up_point);
+    return plate_box;
+}
+
 bool PartPlate::contains(const Vec3d& point) const
 {
 	return m_bounding_box.contains(point);
diff --git a/src/slic3r/GUI/PartPlate.hpp b/src/slic3r/GUI/PartPlate.hpp
index 7f6162b03..b8c490adb 100644
--- a/src/slic3r/GUI/PartPlate.hpp
+++ b/src/slic3r/GUI/PartPlate.hpp
@@ -383,20 +383,7 @@ public:
     const BoundingBoxf3& get_bounding_box(bool extended = false) { return extended ? m_extended_bounding_box : m_bounding_box; }
     const BoundingBox get_bounding_box_crd();
     BoundingBoxf3 get_plate_box() {return get_build_volume();}
-    BoundingBoxf3 get_build_volume()
-    {
-        auto  eps=Slic3r::BuildVolume::SceneEpsilon;
-        Vec3d up_point = Vec3d(m_origin.x() + m_width + eps, m_origin.y() + m_depth + eps, m_origin.z() + m_height + eps);
-        Vec3d low_point  = Vec3d(m_origin.x() - eps, m_origin.y() - eps, m_origin.z() - eps);
-        if (m_raw_shape.size() > 0) {
-            up_point.x() += m_raw_shape[0].x();
-            up_point.y() += m_raw_shape[0].y();
-            low_point.x() += m_raw_shape[0].x();
-            low_point.y() += m_raw_shape[0].y();
-        }
-        BoundingBoxf3 plate_box(low_point, up_point);
-        return plate_box;
-    }
+    BoundingBoxf3 get_build_volume(bool use_share = false);
 
     const std::vector<BoundingBoxf3>& get_exclude_areas() { return m_exclude_bounding_box; }
 
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 50bc133fb..4fafe0868 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -15052,7 +15052,7 @@ void Plater::clone_selection()
 std::vector<Vec2f> Plater::get_empty_cells(const Vec2f step)
 {
     PartPlate* plate = wxGetApp().plater()->get_partplate_list().get_curr_plate();
-    BoundingBoxf3 build_volume = plate->get_build_volume();
+    BoundingBoxf3 build_volume = plate->get_build_volume(true);
     Vec2d vmin(build_volume.min.x(), build_volume.min.y()), vmax(build_volume.max.x(), build_volume.max.y());
     BoundingBoxf bbox(vmin, vmax);
     std::vector<Vec2f> cells;