Tools you might need next
Calculate how many floor or wall tiles you need. Enter room size, tile dimensions, grout gap, and waste percent for accurate tile count and coverage.
Estimate hardwood flooring for your room. Enter dimensions and plank size to get square footage, box count, and plank quantity with 10% cut waste included.
Calculate carpet square footage and linear feet from room size and roll width. Estimate seams, waste, and total carpet to order for wall-to-wall installation.
Complex patterns create more cut pieces and offcuts. Herringbone nearly doubles waste compared to straight grid.
Grid: 8%, Brick Offset: 10%, Diagonal: 12%, Herringbone: 18%Non-rectangular rooms add cuts around corners and angles that increase waste beyond the base pattern rate.
Rectangular: +0%, L-shaped: +3%, Irregular: +5%Updated: July 2026
Standard 8% waste: order tiles for 108 sq ft. About 8 extra tiles for a 12×12" format.
Different tile patterns and room shapes require different waste allowances. This calculator recommends the right waste percentage and extra tile count for your specific project.