The cost to put vinyl flooring in a 12x12 room can vary depending on the type of vinyl flooring and the cost of labor. As per The Home Depot, the first step is to pick the flooring, and then schedule an in-home appointment. The cost of installation can range from $1 to $5 per square foot, depending on the complexity of the job and the type of vinyl flooring being installed. Therefore, the cost to put vinyl flooring in a 12x12 room can range from $144 to $720.