Pedestal Sink Storage Cabinet, Under Sink Cabinet with Double Doors, White-AS 93384625About this item Space Saving: This bathroom cabinet fits underneath your bathroom sink, bringing in an extra bathroom storage space. 7. 75"L x 7. 75"W 'U' shaped cut out for the sink pipe. We recommend you measure the sink before purchasing. Adjustable Shelves: There is an adjustable shelf inside, which you can move up and down to meet your different storage needs: store towels, shampoos, or that hair spray that's usually always too tall to fit.