diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftBarrel.java b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftBarrel.java
index f4b480e304..6063f0e1fd 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftBarrel.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftBarrel.java
@@ -73,4 +73,11 @@ public class CraftBarrel extends CraftLootable<BarrelBlockEntity> implements Bar
     public CraftBarrel copy(Location location) {
         return new CraftBarrel(this, location);
     }
+
+    // Paper start - More Lidded Block API
+    @Override
+    public boolean isOpen() {
+        return getTileEntity().openersCounter.opened;
+    }
+    // Paper end - More Lidded Block API
 }
diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java
index 2b6a93a944..6e98a00d52 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java
@@ -92,4 +92,11 @@ public class CraftChest extends CraftLootable<ChestBlockEntity> implements Chest
     public CraftChest copy(Location location) {
         return new CraftChest(this, location);
     }
+
+    // Paper start - More Lidded Block API
+    @Override
+    public boolean isOpen() {
+        return getTileEntity().openersCounter.opened;
+    }
+    // Paper end - More Lidded Block API
 }
diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftEnderChest.java b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftEnderChest.java
index 07b63ce5f5..b64adbba3e 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftEnderChest.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftEnderChest.java
@@ -51,4 +51,11 @@ public class CraftEnderChest extends CraftBlockEntityState<EnderChestBlockEntity
     public CraftEnderChest copy(Location location) {
         return new CraftEnderChest(this, location);
     }
+
+    // Paper start - More Lidded Block API
+    @Override
+    public boolean isOpen() {
+        return getTileEntity().openersCounter.opened;
+    }
+    // Paper end - More Lidded Block API
 }
diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftShulkerBox.java b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftShulkerBox.java
index 7676313493..f7b199fbc7 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftShulkerBox.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftShulkerBox.java
@@ -59,7 +59,7 @@ public class CraftShulkerBox extends CraftLootable<ShulkerBoxBlockEntity> implem
         if (this.getTileEntity().opened && this.getWorldHandle() instanceof net.minecraft.world.level.Level) {
             net.minecraft.world.level.Level world = this.getTileEntity().getLevel();
             world.blockEvent(this.getPosition(), this.getTileEntity().getBlockState().getBlock(), 1, 0);
-            world.playSound(null, this.getPosition(), SoundEvents.SHULKER_BOX_OPEN, SoundSource.BLOCKS, 0.5F, world.random.nextFloat() * 0.1F + 0.9F);
+            world.playSound(null, this.getPosition(), SoundEvents.SHULKER_BOX_CLOSE, SoundSource.BLOCKS, 0.5F, world.random.nextFloat() * 0.1F + 0.9F); // Paper - More Lidded Block API (Wrong sound)
         }
         this.getTileEntity().opened = false;
     }
@@ -73,4 +73,11 @@ public class CraftShulkerBox extends CraftLootable<ShulkerBoxBlockEntity> implem
     public CraftShulkerBox copy(Location location) {
         return new CraftShulkerBox(this, location);
     }
+
+    // Paper start - More Lidded Block API
+    @Override
+    public boolean isOpen() {
+        return getTileEntity().opened;
+    }
+    // Paper end - More Lidded Block API
 }