# Arches

Blocks are provided for building arches ranging from 1 to 4 blocks in diameter. The following diagram shows the various arch parts and how they fit together.

## Placing Arch Blocks

Arch blocks behave slightly differently from other ArchitectureCraft blocks during placement. They are designed to appear right-side-up when placed by clicking near the top of an adjacent block or underside of a block above. The following example shows one way of building the left half of a diameter-4 arch.

Click here to place Part A | Click here to place Part B | Click here to place Part C | Finished half-arch