Also a more modern construction term pertaining to the leveling of concrete. Plaster isn't used much these days, but almost all concrete work is leveled whether in a form to produce an item or in concrete poured in place. In residential and light commercial work, more often than not a 2" x 4" piece of lumber, dragged with a sawing motion to remove the excess concrete. Actually the quality of the screeding directly influences the quality of the finished work especially when the slope of the grade is critical such as in driveways, sidewalks or other flatwork.