Carcase, shelves, sides, 19 mm thick – back wall 8 mm thick and grooved all round. For maximum stability and ease of use. The carcase is coated on both sides, as is the chipboard back wall. Incidentally: we have been producing the 55 cm width in parallel with the 60 cm width for years, enabling sink or euro standard equipment to be installed in our variable kitchen programme at all times. Ex works a mitred plinth corner with aluminium corner profile is delivered.