Fill a Large Area with Blocks

Setting Up Your Fill

The Build Tool's Fill mode lets you quickly populate a rectangular region with any block type.

1. Press F to cycle through modes until you reach Fill

2. Place your desired block in your offhand (off-hand slot)

3. Right-click on one corner of your target area to set the start position

4. Right-click on the opposite corner to set the end position

5. Right-click again to execute the fill

Tips for Large Fills

If you're filling a massive area, the operation may take a moment to process. Make sure you have enough free space in your world for the blocks to generate. You can undo mistakes by switching to Remove mode and repeating the same corner selections to clear the area.