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CraftShape

Minecraft Oval Generator

Set a width and a height and get a symmetrical ellipse blueprint with block counts and row-by-row instructions. Perfect for stadiums, airship hulls, ponds and arched windows.

Controls

Dimensions

Dimensions

blocks
blocks
Walls

Walls

Fill mode
blocks
Appearance

Appearance

Block color

Oval Generator

41 x 25 · 92 blocks

Drag to pan, scroll or pinch to zoom, hover a cell for coordinates.

Build summary

Width
41
Height
25
Total blocks
92
Rows used
25

Symmetry check: mirrors left to right and mirrors top to bottom.

Ring built between the outer edge and an inner edge 1 block inside it.

Row-by-row instructions

  1. Row 1:skip 15 spaces, place 11 blocks
  2. Row 2:skip 11 spaces, place 4 blocks, leave 11 spaces, place 4 blocks
  3. Row 3:skip 8 spaces, place 3 blocks, leave 19 spaces, place 3 blocks
  4. Row 4:skip 6 spaces, place 2 blocks, leave 25 spaces, place 2 blocks
  5. Row 5:skip 5 spaces, place 1 block, leave 29 spaces, place 1 block
  6. Row 6:skip 4 spaces, place 1 block, leave 31 spaces, place 1 block
  7. Row 7:skip 3 spaces, place 1 block, leave 33 spaces, place 1 block
  8. Row 8:skip 2 spaces, place 1 block, leave 35 spaces, place 1 block
  9. Row 9:skip 1 space, place 1 block, leave 37 spaces, place 1 block
  10. Row 10:skip 1 space, place 1 block, leave 37 spaces, place 1 block
  11. Row 11:place 1 block, leave 39 spaces, place 1 block
  12. Row 12:place 1 block, leave 39 spaces, place 1 block
  13. Row 13:place 1 block, leave 39 spaces, place 1 block
  14. Row 14:place 1 block, leave 39 spaces, place 1 block
  15. Row 15:place 1 block, leave 39 spaces, place 1 block
  16. Row 16:skip 1 space, place 1 block, leave 37 spaces, place 1 block
  17. Row 17:skip 1 space, place 1 block, leave 37 spaces, place 1 block
  18. Row 18:skip 2 spaces, place 1 block, leave 35 spaces, place 1 block
  19. Row 19:skip 3 spaces, place 1 block, leave 33 spaces, place 1 block
  20. Row 20:skip 4 spaces, place 1 block, leave 31 spaces, place 1 block
  21. Row 21:skip 5 spaces, place 1 block, leave 29 spaces, place 1 block
  22. Row 22:skip 6 spaces, place 2 blocks, leave 25 spaces, place 2 blocks
  23. Row 23:skip 8 spaces, place 3 blocks, leave 19 spaces, place 3 blocks
  24. Row 24:skip 11 spaces, place 4 blocks, leave 11 spaces, place 4 blocks
  25. Row 25:skip 15 spaces, place 11 blocks

How the oval blueprint is calculated

Every cell in the grid is tested against the normalized ellipse equation using the middle of the cell: (dx / halfWidth)² + (dy / halfHeight)² ≤ 1. Because both distances are measured from the exact centre of the shape, the result always mirrors left to right and top to bottom, whether your width and height are odd or even.

Choosing a width and height

  • A ratio near 1:1 looks like a circle. Around 8:5 reads clearly as an oval without looking stretched.
  • Very shallow ovals (for example 60 x 12) have long flat runs. That is expected on a block grid — add height if you want more curve.
  • Match your width and height to something you can measure in game, such as the length of a stadium straight.

Building it in game

  • Mark the widest row and the tallest column first — those two lines set the whole shape.
  • Build one quarter, then mirror it twice. The maths guarantees the quarters match.
  • For a wall, repeat the hollow outline on every layer of height.

Frequently asked questions

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