What Can You Use Instead of a Grout Float?

A grout float, the rubber-faced trowel used to press grout into tile joints and scrape away the excess, isn’t the only tool that gets the job done. A stiff rubber squeegee, a plastic putty knife or old gift card for small repairs, or a grout bag for narrow and vertical joints can all substitute depending on the size and shape of the job. This guide covers which substitute works best for which situation, and when it’s still worth just buying an actual float.

A Rubber Squeegee for Larger Areas

A grout float’s job is really just pressing grout diagonally into the joints and then scraping the excess off the tile face at a low angle, and a firm rubber floor squeegee or even a window squeegee does both of those things reasonably well on larger-format tile with wider grout lines. The main difference is that a dedicated float has a slightly harder, denser rubber pad designed to withstand repeated pressure without deforming, while a general-purpose squeegee’s softer rubber can flex more and leave slightly uneven joint depth on a big floor job. For a shower niche, a backsplash, or a small floor repair, the difference is negligible.

A Putty Knife or Old Card for Small Repairs

For patching a handful of cracked or missing grout joints rather than a whole tile job, a plastic putty knife or even a stiff, expired gift card works well to push grout into the joint by hand. Plastic is important here rather than metal, since a metal putty knife edge can scratch glazed tile or natural stone as you work the grout in and scrape the surface clean.

A Grout Bag for Narrow Joints and Vertical Tile

A grout bag, essentially a piping bag with a narrow nozzle, is arguably better than a float for unsanded grout in narrow joints, mosaic tile, or vertical surfaces like a shower wall, because it deposits grout directly into the joint with far less mess on the surrounding tile face. This matters especially on textured or porous tile like natural stone, where grout haze pressed and smeared across the surface by a float can be genuinely difficult to clean off later, particularly if you’re removing old tile adhesive or residue from a previous installation before regrouting.

What a Sponge Can and Can’t Replace

A grout sponge is essential for the wipe-down and haze-removal step after grouting, but it isn’t a substitute for the application tool itself, a wet sponge doesn’t have the rigidity to press grout firmly down into a joint. Keep the sponge for its actual job, cleaning excess grout off the tile face in the 15 to 30 minutes after application, and use one of the substitutes above for the pressing and packing step.

When It’s Still Worth Buying an Actual Float

For any job larger than a small repair, a full bathroom floor, a large backsplash, or a shower surround, a proper grout float, which typically costs $8 to $15, saves enough time and gives a more consistent joint depth that it’s worth the small expense rather than improvising with a squeegee for an entire room.

Frequently Asked Questions

Can I use my hands instead of any tool to apply grout?

You can with gloves for a very small patch job, but grout is caustic to skin over prolonged contact and it’s difficult to pack a joint evenly by hand, so it’s only practical for a handful of tiles, not a full job.

Does the substitute tool affect how strong the grout joint is?

Not meaningfully, as long as the grout is fully packed into the joint with no air gaps. The tool affects ease of application and cleanup more than the cured strength of the grout itself.

Is a grout bag messier or cleaner than a float overall?

A grout bag is generally cleaner on the tile face since it deposits grout directly into the joint rather than smearing it across the surface first, though it takes a bit more practice to control the flow rate than spreading with a float.