NOT AN OFFICIAL MINECRAFT PRODUCT. NOT APPROVED BY OR ASSOCIATED WITH MOJANG OR MICROSOFT. This is an unofficial fan-made tool for planning block builds.
Minecraft blueprint generator

Minecraft Dome Generator

Use the dome page when you only need the top or bottom part of a sphere, with cap height and selected-layer output. The blueprint updates instantly as you edit values.

View options:
100%
Total blocks2,018
Current layer749
CenterSingle center block
BoundsX -15 to 15, Z -15 to 15
More exports
CenterAxis (X/Z)Each grid = 1 block31 block hollow dome · layer 1 / 16
Blueprint notes
  • Odd size: the blueprint has one exact center block.
Layer 1 of 16 · Y 0 · base center

Current layer blocks: 749 · Local radius: 15.50 · Total layers: 16

Current layer row segments

Z (row)X startX endLengthBlocksVisual
-15-3377
-14-661313
-13-881717
-12-991919
-11-10102121
-10-11112323
-9-12122525
-8-13132727
-7-13132727
-6-14142929
-5-14142929
-4-14142929
-3-15153131
-2-15153131
-1-15153131
0-15153131
1-15153131
2-15153131
3-15153131
4-14142929
5-14142929
6-14142929
7-13132727
8-13132727
9-12122525
10-11112323
11-10102121
12-991919
13-881717
14-661313
15-3377

Layer summary

LayerYBlocksLocal radiusRows
1074915.5031
218415.4731
329215.3731
439215.2131
548814.9729
658014.6729
768814.2929
878813.8327
988813.2827
1099212.6225
11108811.8423
12118810.9221
1312809.8119
1413848.4417
1514926.6513
1615453.917

Common diameters

Even footprints center between blocks; odd footprints use one center block. Mixed oval footprints use a center line on only one axis.

Dome build workflow

  1. Enter the full source sphere diameter.
  2. Choose top half or bottom half, then set the cap height.
  3. Choose Hollow shell or Solid and confirm shell thickness.
  4. Print or export the selected layer range for the part of the dome you are building.

Dome outputs

  • Layer preview for the selected half/cap with current-layer row segments.
  • Cap-aware layer count, total blocks, current-layer count, and stack estimate.
  • PNG/SVG preview plus all/current/selected-range CSV and selected-range print.

Dome mistakes to avoid

  • Cap height is measured in layers, not horizontal diameter.
  • Check top versus bottom half before exporting rows.
  • For large domes, print only the layer range you will build in one session.

FAQ

What does cap height control?

It limits how many layers of the selected dome half are included in the blueprint.

Can I print only part of a dome?

Yes. Choose Selected range, enter the layer numbers, then print the generated sheet.

Should I use hollow or solid?

Use hollow for shells and roofs; use solid when you need a filled mass or a conservative material estimate.