The invention is an impermeable floor cover for protecting a surface while working along door regions, which utilizes one or more cover components, designed to allow full door movement variability. The specialized cover is made with a light, flexible and durable fabric, which maintains a flat composure and is adapted to register with one or more door jambs to substantially cover a floor space. Each cover component includes multiple grooves adapted to register with a door's jambs for protecting a surface area from undesired exposure to substances such as paint.