diff --git a/src/main/java/com/sk89q/worldedit/EditSession.java b/src/main/java/com/sk89q/worldedit/EditSession.java
index f95ddc766..2de4b69ca 100644
--- a/src/main/java/com/sk89q/worldedit/EditSession.java
+++ b/src/main/java/com/sk89q/worldedit/EditSession.java
@@ -590,7 +590,7 @@ public void flushQueue() {
      * @return number of blocks affected
      * @throws MaxChangedBlocksException 
      */
-    public int fillXZ(Vector origin, BaseBlock block, int radius, int depth,
+    public int fillXZ(Vector origin, BaseBlock block, double radius, int depth,
             boolean recursive) throws MaxChangedBlocksException {
 
         int affected = 0;
@@ -695,7 +695,7 @@ private int fillY(int x, int cy, int z, BaseBlock block, int minY)
      * @return number of blocks affected
      * @throws MaxChangedBlocksException 
      */
-    public int fillXZ(Vector origin, Pattern pattern, int radius, int depth,
+    public int fillXZ(Vector origin, Pattern pattern, double radius, int depth,
             boolean recursive) throws MaxChangedBlocksException {
 
         int affected = 0;
@@ -1492,7 +1492,7 @@ public int moveCuboidRegion(Region region, Vector dir, int distance,
      * @return number of blocks affected
      * @throws MaxChangedBlocksException
      */
-    public int drainArea(Vector pos, int radius)
+    public int drainArea(Vector pos, double radius)
             throws MaxChangedBlocksException {
         int affected = 0;
 
@@ -1559,7 +1559,7 @@ public int drainArea(Vector pos, int radius)
      * @return number of blocks affected
      * @throws MaxChangedBlocksException
      */
-    public int fixLiquid(Vector pos, int radius, int moving, int stationary)
+    public int fixLiquid(Vector pos, double radius, int moving, int stationary)
             throws MaxChangedBlocksException {
         int affected = 0;
 
@@ -1920,7 +1920,7 @@ public int makePyramid(Vector pos, Pattern block, int size,
      * @return number of blocks affected
      * @throws MaxChangedBlocksException
      */
-    public int thaw(Vector pos, int radius)
+    public int thaw(Vector pos, double radius)
             throws MaxChangedBlocksException {
         int affected = 0;
         int radiusSq = (int)Math.pow(radius, 2);
@@ -1932,8 +1932,9 @@ public int thaw(Vector pos, int radius)
         BaseBlock air = new BaseBlock(0);
         BaseBlock water = new BaseBlock(BlockID.STATIONARY_WATER);
 
-        for (int x = ox - radius; x <= ox + radius; ++x) {
-            for (int z = oz - radius; z <= oz + radius; ++z) {
+        int ceilRadius = (int) Math.ceil(radius);
+        for (int x = ox - ceilRadius; x <= ox + ceilRadius; ++x) {
+            for (int z = oz - ceilRadius; z <= oz + ceilRadius; ++z) {
                 if ((new Vector(x, oy, z)).distanceSq(pos) > radiusSq) {
                     continue;
                 }
@@ -1968,7 +1969,7 @@ public int thaw(Vector pos, int radius)
      * @return number of blocks affected
      * @throws MaxChangedBlocksException
      */
-    public int simulateSnow(Vector pos, int radius)
+    public int simulateSnow(Vector pos, double radius)
             throws MaxChangedBlocksException {
         int affected = 0;
         int radiusSq = (int)Math.pow(radius, 2);
@@ -1980,8 +1981,9 @@ public int simulateSnow(Vector pos, int radius)
         BaseBlock ice = new BaseBlock(79);
         BaseBlock snow = new BaseBlock(78);
 
-        for (int x = ox - radius; x <= ox + radius; ++x) {
-            for (int z = oz - radius; z <= oz + radius; ++z) {
+        int ceilRadius = (int) Math.ceil(radius);
+        for (int x = ox - ceilRadius; x <= ox + ceilRadius; ++x) {
+            for (int z = oz - ceilRadius; z <= oz + ceilRadius; ++z) {
                 if ((new Vector(x, oy, z)).distanceSq(pos) > radiusSq) {
                     continue;
                 }
diff --git a/src/main/java/com/sk89q/worldedit/WorldEdit.java b/src/main/java/com/sk89q/worldedit/WorldEdit.java
index c9ebb93fd..a031def65 100644
--- a/src/main/java/com/sk89q/worldedit/WorldEdit.java
+++ b/src/main/java/com/sk89q/worldedit/WorldEdit.java
@@ -661,7 +661,7 @@ private File getSafeFile(LocalPlayer player, File dir, String filename,
      * @param radius
      * @throws MaxRadiusException
      */
-    public void checkMaxRadius(int radius) throws MaxRadiusException {
+    public void checkMaxRadius(double radius) throws MaxRadiusException {
         if (config.maxRadius > 0 && radius > config.maxRadius) {
             throw new MaxRadiusException();
         }
diff --git a/src/main/java/com/sk89q/worldedit/commands/UtilityCommands.java b/src/main/java/com/sk89q/worldedit/commands/UtilityCommands.java
index f687bac54..b49d98f12 100644
--- a/src/main/java/com/sk89q/worldedit/commands/UtilityCommands.java
+++ b/src/main/java/com/sk89q/worldedit/commands/UtilityCommands.java
@@ -52,7 +52,7 @@ public static void fill(CommandContext args, WorldEdit we,
             throws WorldEditException {
 
         Pattern pattern = we.getBlockPattern(player, args.getString(0));
-        int radius = Math.max(1, args.getInteger(1));
+        double radius = Math.max(1, args.getDouble(1));
         we.checkMaxRadius(radius);
         int depth = args.argsLength() > 2 ? Math.max(1, args.getInteger(2)) : 1;
 
@@ -82,7 +82,7 @@ public static void fillr(CommandContext args, WorldEdit we,
             throws WorldEditException {
 
         Pattern pattern = we.getBlockPattern(player, args.getString(0));
-        int radius = Math.max(1, args.getInteger(1));
+        double radius = Math.max(1, args.getDouble(1));
         we.checkMaxRadius(radius);
         int depth = args.argsLength() > 2 ? Math.max(1, args.getInteger(2)) : 1;
 
@@ -111,7 +111,7 @@ public static void drain(CommandContext args, WorldEdit we,
             LocalSession session, LocalPlayer player, EditSession editSession)
             throws WorldEditException {
 
-        int radius = Math.max(0, args.getInteger(0));
+        double radius = Math.max(0, args.getDouble(0));
         we.checkMaxRadius(radius);
         int affected = editSession.drainArea(
                 session.getPlacementPosition(player), radius);
@@ -131,7 +131,7 @@ public static void fixLava(CommandContext args, WorldEdit we,
             LocalSession session, LocalPlayer player, EditSession editSession)
             throws WorldEditException {
 
-        int radius = Math.max(0, args.getInteger(0));
+        double radius = Math.max(0, args.getDouble(0));
         we.checkMaxRadius(radius);
         int affected = editSession.fixLiquid(
                 session.getPlacementPosition(player), radius, 10, 11);
@@ -151,7 +151,7 @@ public static void fixWater(CommandContext args, WorldEdit we,
             LocalSession session, LocalPlayer player, EditSession editSession)
             throws WorldEditException {
 
-        int radius = Math.max(0, args.getInteger(0));
+        double radius = Math.max(0, args.getDouble(0));
         we.checkMaxRadius(radius);
         int affected = editSession.fixLiquid(
                 session.getPlacementPosition(player), radius, 8, 9);
@@ -270,7 +270,7 @@ public static void snow(CommandContext args, WorldEdit we,
             LocalSession session, LocalPlayer player, EditSession editSession)
             throws WorldEditException {
 
-        int size = args.argsLength() > 0 ? Math.max(1, args.getInteger(0)) : 10;
+        double size = args.argsLength() > 0 ? Math.max(1, args.getDouble(0)) : 10;
 
         int affected = editSession.simulateSnow(session.getPlacementPosition(player), size);
         player.print(affected + " surfaces covered. Let it snow~");
@@ -289,7 +289,7 @@ public static void thaw(CommandContext args, WorldEdit we,
             LocalSession session, LocalPlayer player, EditSession editSession)
             throws WorldEditException {
 
-        int size = args.argsLength() > 0 ? Math.max(1, args.getInteger(0)) : 10;
+        double size = args.argsLength() > 0 ? Math.max(1, args.getDouble(0)) : 10;
 
         int affected = editSession.thaw(session.getPlacementPosition(player), size);
         player.print(affected + " surfaces thawed.");