Build guide
Best uses
This generator is useful for curved room corners, stadium turns, towers and landscape edges. The planner gives a block-by-block shape plan and material total before you start placing blocks in your world.
How to build it
Use the two straight axes as your starting edges, then build the curve away from the corner. This keeps the curve aligned with existing walls.
Planning tip
Quarter circles are useful when a full circular room would waste space.
Before you start
Choose the final outside dimensions, check whether the centre is 1×1 or 2×2, and gather the stack total shown by the tool. For large builds, use the printable layer or quadrant plan instead of trying to follow a giant grid on one screen.
Use the straight edges as your guide
A quarter circle is easiest when its two flat sides align with existing walls or paths. Mark the corner reference first, then follow the curve outward. This makes quarter circles useful for stadium corners, tower edges and rounded room transitions where a full circle would waste space.
Keep decorative detail until last
Finish the plain block curve before adding stairs, slabs or lighting. When the basic shape is right, copy the same decorative treatment along the curved edge so both axes remain balanced.
Plan the corner transition
A quarter circle works best when its straight axes attach to two known walls or paths. Establish those axes first, then build the curve. This gives a clean transition for a tower corner, stadium turn or rounded room edge without guessing where the curve should start.
Keep the interior useful
Check the space inside the curved corner before raising walls. A thick outline can reduce a path or room more than expected, especially on small dimensions.
FAQ
Does this work in Java and Bedrock?
Yes. These are manual block-placement blueprints, so the visual plan works in both editions.
Can I export the plan?
The Shape Planner supports JSON and CSV layer exports. PNG, SVG and print exports are available for compatible 2D blueprints.
More build questions
How do I make a quarter circle corner?
Align the two straight axes to your existing walls, then follow the curved block pattern away from the corner.
What is a quarter circle useful for?
Quarter circles work well for tower corners, stadium turns, bridge details and curved room edges.
Use this quarter-circle blueprint for curved corners and compact arc sections instead of drawing the curve by eye.
Can I use a quarter circle for a tower corner?
Yes. Align the two straight sides with your walls, then use the curved edge as the rounded outside corner.
Does a quarter circle need a centre marker?
Yes. The centre or corner reference keeps the curve aligned with the two straight axes.