Top shelf, for securing to add-on rails, for bench width 1800 mm. Supplied = assembled. Height = 40 mm. Width = 1800 mm. Depth = 300 mm. For width = 1800 mm. Type of mounting = on add-on rails. Material = sheet steel. Extremely easy height adjustment without tools. Top shelf made of sheet steel with mounting holes on the rear for adapting the rear panel board, incl. adapter for fastening to rails.