{"success":true,"calculator":"tile","description":"Calculate number of tiles needed for floors or walls with waste factor.","endpoint":"/api/calculate/tile","method":"GET or POST","parameters":{"room_length_ft":"Room length in feet (required)","room_width_ft":"Room width in feet (required)","tile_length_in":"Tile length in inches (default: 12)","tile_width_in":"Tile width in inches (default: 12)","grout_gap_in":"Grout gap width in inches (default: 0.125)","waste_pct":"Waste percentage (default: 10)"},"example_url":"/api/calculate/tile?room_length_ft=12&room_width_ft=10&tile_length_in=12&tile_width_in=12"}