Caulk Baseboard Like a Pro Materials CaulkCaulking gunGrout spongeBucket with water Steps Apply caulk to baseboardRun finger along caulk to smoothen it outWet and rinse spongeRun sponge along caulk once on each sideRepeat steps 3 and 4 until caulk looks good Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X