Edge Mosaic

Compare a full-tile start with a centred tile or centred joint. Move the grid with the offset controls and check the actual widths at all four edges. Your preferred minimum edge width highlights small strips, while excluded rectangles let you account for columns and openings using your own measurements. Tap a tile to inspect its retained outline and boundary dimensions. The cut review separates full tiles, cut source tiles and retained pieces, including cases where an opening divides one tile into several parts. It also compares candidate edge widths and separates tile area from excluded footprints and joint space. Offcut reuse and spare quantities are not assumed. Save measured surfaces on your device, duplicate a plan to explore another arrangement, or return later to adjust it. The workspace uses millimetres and straight rectangular layouts. It opens without an account, stores plans locally and needs no external measurement service. A layout aid, not structural or installation-safety advice.