Minecraft roof generator

Span, length and pitch — the generator builds a block roof profile and extrudes it along the house: a classic gable, a flat-top with a platform in the middle or an asymmetric roof with different slopes. In 3D at once, export to .litematic and .schem.

How it works

1. Set the dimensions with the sliders — the shape is recalculated instantly and shown in 3D.
2. Pick a block (some tools take two: main and secondary).
3. Turn on Layers to see the shape slice by slice — handy for building by hand.
4. Download .litematic for Litematica or .schem for WorldEdit.

Examples

• Gable 15×11
• Flat-top
• Asymmetric

FAQ

Which pitch should I pick?

Pitch 1:1 is the classic for stair-block houses; 1:2 is a shallow barn roof; 2:1 a steep gothic one. An odd span gives a one-block ridge.

How do I build this without mods?

Open the schematic in the viewer, turn on Layers and place blocks layer by layer on the grid. With Litematica or WorldEdit the schematic is pasted in one go.

Why does the shape look stepped?

Blocks are whole, so every curve turns into steps — the game does the same. An odd size gives a clean centre block, an even size gives two.

Is it free, no sign-up?

Yes. Everything is computed in the browser; the file is built locally and never uploaded.

See also: Arch · Minecraft builder tools