The car park at the Garenmarkt in Leiden offers 425 parking spaces and a green city square will be created above the car park. For this project, Dejo supplied the Dejo louvre grating (DPL) as a wall grating in a round arch. Some gratings are fitted with hinges so that the space behind the wall is accessible for maintenance and storage. The bed hook system was used as the fixing method so that the vanes remain intact and an even image is created. All gratings are galvanised and coated in RAL7047.