Cabinet Organizer: Solid bottom 2-tier adjustable cabinet with a protective soft close feature is an ideal addition to home kitchens that maximizes storage space Designed to Fit: Designed for Base 21 Cabinet; Dimensions (W x D x H): 20.61"W x 21.75"D x 16.63"H; Face Frame Minimum Cabinet Opening: 20"W x 21.75"D x 17"H; Frameless Minimum Cabinet Opening: 20.75"W x 21.75"D x 17"H Full-extension: Soft-close full-extension concealed slide system will ensure the drawer is closed smoothly and quietly; Option for door-mount brackets (54DM-KIT-1 sold separately); Peg holes accommodate additional accessories (sold separately) Durable Construction: Solid composite bottom will not warp, crack, or bend and will keep items from slipping or falling through with a heavy-gauge powder-coated metal wire construction for increased durability; Weight capacity per shelf: 75 pounds Rev-A-Shelf Difference: A global family-owned company offering holistic, convenient, stylish, and smart organization and storage solutions for kitchens, baths, closets, and whole homes since 1984