Hello, the dimensions of our product are closed& # In the case of x1;31, the width is 29.5 cm and the length is 33.5 cm. When fully opened, the width is 53.5 cm and the length is 33.5 cm. The width of the product for your drawer, which measures 42x42 cm, can be adjusted between 29.5 cm and 53.5 cm, but its length is fixed at 33.5 cm. In other words, it fits perfectly into the width of your drawer, but it will be approximately 8.5 cm shorter in length at 42 cm. We kindly ask you to evaluate the measurements. Regards, SAS Global