How do you open a floor plug?

Those are tamper resistant plugs. To “open the holes” you simply plug something in. Push the plug in straight and firmly. These are designed to prevent kids from sticking stuff in them.

How do you open an outlet cover on the floor?

Make sure to use a normal size slot-head screwdriver and press it down deep into the crevice. Pry it open and close it several times to loosen it up.

How do you remove floor box covers?

Do floor outlets need to be covered?

In addition to residential work, they also provide commercial electric work. It’s important to cover an electrical floor outlet any time it’s not in use in order to avoid damaging the outlet itself or causing electrical problems. In fact, properly covering the electrical outlet in your floor may even prevent a fire.