24/7 Emergency Plumbing & Heating Services
$25 OFF Your First Service | Use Code: 907SAVE
5655 Gate Keeper Ave, Anchorage, AK 99504
Calculate exact pounds and bags of sanded or unsanded tile grout based on tile dimensions, grout joint width, and square footage.
Grout coverage depends on tile dimensions and joint width. For a 150 sq ft bathroom floor with 12" × 12" porcelain tiles (3/8" thick) and 1/8" joints, you need approximately 15 to 18 lbs of sanded grout (one 25-lb bag). Smaller mosaic tiles require significantly more grout due to increased joint linear footage.
Adjust inputs for real-time results
Standard porcelain is 3/8" (0.375").
Total Dry Grout Required
Note: Joints 1/8" or wider require sanded grout to prevent shrinkage cracking. Joints under 1/8" require unsanded grout.
Epoxy grout is 100% waterproof and stain-resistant, making it ideal for high-moisture shower pans and kitchen backsplashes.
Common questions regarding this calculation and code compliance
Use unsanded grout for joints less than 1/8-inch wide, and for scratch-sensitive materials like polished marble, limestone, or glass tile.
