Design tool
Minecraft Cylinder Generator
Build a round tower or tube: pick a diameter and a height, choose solid or a hollow wall, and every layer is the same circle. Preview it flat or in 3D.
Shape
The shape to generate. Each one has its own page with worked examples.
Diameter16 blocks
Drag the slider, or type an exact block count.
Height16 blocks
Drag the slider, or type an exact block count.
Layer 1 of 16704 blocks
Slide to step through the build from bottom to top.
How to use the Cylinder Generator
Build a round tower or tube — one circle repeated for the full height — with the block count and a 3D preview.
Quick steps
- 1Set the diameter and height
- 2Choose Filled (a pillar), or Outline or Thick outline (a hollow tube)
- 3Build the same circle on every layer
- 4Rotate the 3D view to check it
Example use cases
- Round towers and turrets
- Silos, wells and chimneys
- Pillars and columns
Tips
Use hollow for towers, solid for pillars
Cap a hollow tower with the dome generator for a turret roof
Every layer is identical, so build one ring and repeat it up
Frequently asked questions
How do you build a cylinder in Minecraft?
A cylinder is one circle repeated at every height. Pick a diameter and a height, and build the same circle on each layer. This generator shows the circle to copy and the total block count, plus a 3D preview of the finished tower or tube.
What is the difference between a solid cylinder and a tube?
A solid cylinder fills each circle completely — good for pillars and columns. A hollow cylinder keeps only the ring at each height, giving an open-ended tube, which is what you want for silos, wells, towers and chimneys.
How do I build a round tower?
Use a hollow cylinder: set the diameter to the tower width and the height to how tall you want it, then build the ring shown on every layer. Add a dome on top with the dome generator for a turret roof.
How many blocks does a cylinder need?
It is the blocks in one circle multiplied by the height — filled uses the whole disc, hollow uses just the ring. The generator shows both the per-layer and total counts.