Anyone can screed concrete now. You don't need to be a long time concrete guy to screed and get concrete flat. Screed Rail Chairs give you a perfect grade without the fear of digging too deep or leaving a hump. The rails are set perfect and easy to screed off of. Screed Rails are by far the easiest way to screed concrete. No more setting wet pads or striking off a screed section, set your screed chairs, place the rail and screed away.