DJ Redlocks wrote:

I am having ceramic tile flooring installed in my bathroom as well as
my kitchen. The contractor is suggesting 3/8" joints. What is the
difference between sanded and unsanded grout? Which do you recommend?

Sanded grout has sand in it; unsanded doesn't. That's pretty much the
difference.

Unsanded grout is only for very small grout lines, like the 1/8" or
less in a shower. The sand makes the grout more durable. A 3/8" grout
line is wide enough to walk on. Use sanded grout.

--
Steve Bell
New Life Home Improvement
Arlington, TX