Plan domes and hemispheres that fit the footprint
The Minecraft Dome Generator is for round roofs, observatories, greenhouses, temples, and tanks. It calculates the upper sphere layers as buildable plans, so the dome lands cleanly on your circle footprint and the material count is clear before construction.
Workflow
- Set the dome diameter to match the room, tower, or foundation.
- Choose wall thickness and hollow behavior before collecting materials.
- Build from the base upward and check each layer shape separately.
- Compare the 3D preview with the layer plan when adding windows, openings, or supports.
Best for
- Observatories, glass roofs, greenhouses, temples, tanks, and hemispheres.
- Checking whether a dome size fits a circular base exactly.
- Material planning for hollow roof shells where the curve stays visible.
Planning notes
- A dome often needs a base ring or trim so the transition into walls looks intentional.
- Glass makes stair-step edges more visible; test several diameters before building.
- For a complete globe, use the sphere generator instead of the dome generator.