diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/MaskFactory.java b/worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/MaskFactory.java
index a63b194659..b5f91ff2aa 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/MaskFactory.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/MaskFactory.java
@@ -29,6 +29,7 @@
 import com.sk89q.worldedit.extension.factory.parser.mask.ExistingMaskParser;
 import com.sk89q.worldedit.extension.factory.parser.mask.ExposedMaskParser;
 import com.sk89q.worldedit.extension.factory.parser.mask.ExpressionMaskParser;
+import com.sk89q.worldedit.extension.factory.parser.mask.FullCubeMaskParser;
 import com.sk89q.worldedit.extension.factory.parser.mask.LazyRegionMaskParser;
 import com.sk89q.worldedit.extension.factory.parser.mask.NegateMaskParser;
 import com.sk89q.worldedit.extension.factory.parser.mask.NoiseMaskParser;
@@ -71,6 +72,7 @@ public MaskFactory(WorldEdit worldEdit) {
         register(new AirMaskParser(worldEdit));
         register(new ExposedMaskParser(worldEdit));
         register(new SolidMaskParser(worldEdit));
+        register(new FullCubeMaskParser(worldEdit));
         register(new LazyRegionMaskParser(worldEdit));
         register(new RegionMaskParser(worldEdit));
         register(new OffsetMaskParser(worldEdit));
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/mask/FullCubeMaskParser.java b/worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/mask/FullCubeMaskParser.java
new file mode 100644
index 0000000000..90effacbe3
--- /dev/null
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/mask/FullCubeMaskParser.java
@@ -0,0 +1,49 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.extension.factory.parser.mask;
+
+import com.google.common.collect.ImmutableList;
+import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.extension.input.InputParseException;
+import com.sk89q.worldedit.extension.input.ParserContext;
+import com.sk89q.worldedit.function.mask.FullCubeMask;
+import com.sk89q.worldedit.function.mask.Mask;
+import com.sk89q.worldedit.internal.registry.SimpleInputParser;
+
+import java.util.List;
+
+public class FullCubeMaskParser extends SimpleInputParser<Mask> {
+
+    private final List<String> aliases = ImmutableList.of("#fullcube");
+
+    public FullCubeMaskParser(WorldEdit worldEdit) {
+        super(worldEdit);
+    }
+
+    @Override
+    public List<String> getMatchedAliases() {
+        return aliases;
+    }
+
+    @Override
+    public Mask parseFromSimpleInput(String input, ParserContext context) throws InputParseException {
+        return new FullCubeMask(context.requireExtent());
+    }
+}
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/FullCubeMask.java b/worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/FullCubeMask.java
new file mode 100644
index 0000000000..6eafa8b712
--- /dev/null
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/FullCubeMask.java
@@ -0,0 +1,39 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.function.mask;
+
+import com.sk89q.worldedit.extent.Extent;
+import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.world.block.BlockState;
+
+public class FullCubeMask extends AbstractExtentMask {
+
+    public FullCubeMask(Extent extent) {
+        super(extent);
+    }
+
+    @Override
+    public boolean test(BlockVector3 vector) {
+        Extent extent = getExtent();
+        BlockState block = extent.getBlock(vector);
+        return block.getBlockType().getMaterial().isFullCube();
+    }
+
+}