The best garage floor coatings protect, add grip, and improve concrete floors. See which options are easy to use and durable.

When the wooden fence post of the stall stops me short, I point my light down and follow a current of rainwater across the concrete floor until it washes up against three large, gray feet.

For most people fortunate enough to have a garage, it’s a place to park a daily driver or two, store the cornhole board between backyard barbecues, and stash the trusty Lawn-Boy, along with some ...