What is sanded vs unsanded grout?
Sanded grout contains sand aggregate and is used for grout lines wider than 1/8 inch, while unsanded grout lacks sand and is suited for narrow joints under 1/8 inch.
The choice between sanded and unsanded grout depends on the width of the joints between tiles. Sanded grout contains fine sand particles mixed into the cement base, which gives it bulk and strength. Unsanded grout is a smoother cement mixture without sand aggregate.
Grout lines wider than 1/8 inch typically call for sanded grout. The sand particles prevent shrinkage cracks as the grout cures and provides structural integrity for larger gaps. Unsanded grout works for joints 1/8 inch or narrower, where the fine, smooth texture fills tight spaces cleanly without the sand particles getting trapped or creating surface inconsistencies.
Sanded grout is also more economical for wide joints since the sand filler stretches the material further than cement alone. Unsanded grout costs more per unit because it relies on cement for strength without the bulk advantage of sand. The finish texture also differs: sanded grout has a slightly grainy appearance, while unsanded delivers a denser, more polished look.
Choosing the wrong type can lead to cracking, poor adhesion, or visible imperfections in the tile surface. Tampa tile contractors typically stock both formulations to match the specific layout and grout joint widths of each project. If you need advice on which type suits your tile installation, tile repair and regrouting providers can assess your joint size and recommend the appropriate material.