Rectangular Tile Layout Planner

How to use Rectangular Tile Layout Planner

A tile starts at minus the entered offset. Repeated pitches equal tile size plus grout; only positive intersections with the room count. Coordinates and cut sizes are exact on a six-decimal grid.

1. Enter room width (same length unit), room height, tile width, tile height, grout gap, horizontal grid offset, vertical grid offset.
2. Choose the stated convention and check the units and supported model.
3. Calculate, inspect the result, then copy or download it.

Good to know

• Exact-grid inputs use plain decimals with at most six decimal places and magnitude at most1e9. JSON numeric inputs use their stored decimal spelling; quote decimals when their exact entered spelling matters. No input is evaluated as code. One rectangular room, straight rows, at most2000 tiles. Grout exists between tiles, not as a required wall border. No diagonal pattern, openings, offcut reuse, breakage allowance or installation specification.
• Runs locally without input persistence. Text/JSON fields have a30000-character cap unless a stricter page limit applies; output has a1000000-character cap. Exact-grid workflows preserve six-decimal arithmetic, while approximate workflows use finite floating-point values. JSON downloads retain complete stored numeric values and exact fractions where provided. Unsupported formats and detected numeric or work-budget excess return an error or a clearly unresolved classification.
• Educational user-assumption arithmetic only. No live prices, laws, tax rules, quotes or financial advice.