diff --git a/Packer.php b/Packer.php
index b4a2a5fc..b9438ca1 100644
--- a/Packer.php
+++ b/Packer.php
@@ -284,6 +284,23 @@ public function packIntoBox(Box $aBox, ItemList $aItems) {
             $layerWidth = max($itemLength, $layerWidth);
           }
           $layerDepth = max($layerDepth, $itemToPack->getDepth()); //greater than 0, items will always be less deep
+
+          //allow items to be stacked in place within the same footprint up to current layerdepth
+          $maxStackDepth = $layerDepth - $itemToPack->getDepth();
+          while(!$aItems->isEmpty()) {
+            $potentialStackItem = $aItems->top();
+            if ($potentialStackItem->getDepth() <= $maxStackDepth &&
+                $potentialStackItem->getWeight() <= $remainingWeight &&
+                $potentialStackItem->getWidth() <= $itemToPack->getWidth() &&
+                $potentialStackItem->getLength() <= $itemToPack->getLength()) {
+              $remainingWeight -= $potentialStackItem->getWeight();
+              $maxStackDepth -= $potentialStackItem->getDepth();
+              $packedItems->insert($aItems->extract());
+            }
+            else {
+              break;
+            }
+          }
         }
         else {
           if ($remainingWidth >= min($itemWidth, $itemLength) && $layerDepth > 0) {
diff --git a/tests/PackerTest.php b/tests/PackerTest.php
index d4c97c22..82791ca2 100644
--- a/tests/PackerTest.php
+++ b/tests/PackerTest.php
@@ -350,6 +350,17 @@ public function testIssue9() {
       self::assertEquals(1, $packedBoxes->count());
     }
 
+    public function testIssue11() {
+      $packer = new Packer();
+      $packer->addBox(new TestBox('4x4x4Box', 4, 4, 4, 4, 4, 4, 4, 100));
+
+      $packer->addItem(new TestItem('BigItem', 2, 2, 4, 1), 2);
+      $packer->addItem(new TestItem('SmallItem', 1, 1, 1, 1), 32);
+      $packedBoxes = $packer->pack();
+
+      self::assertEquals(1, $packedBoxes->count());
+    }
+
     public function testIssue13() {
       $packer = new Packer();
       $packer->addBox(new TestBox('Le petite box', 12, 12, 12, 10, 10, 10, 10, 1000));