This traex full-size plate racks has 9 rows by 9 rows and 17/8-inch peg spacing. Made of plastic material. Extended peg racks prevent large plate breakage adds 3-inch to a standard peg rack. It allows to run smoothly dishwashing station. This dishwasher rack has been designed with an open bottom and sidewalls to allow for thorough drying. Measures 19-3/4-inch length by 19-3/4-inch width by 4-inch height. It is NSF certified.