Height: 9 in. (229mm) Width: 16-1/16 in. (408mm) Depth: 18-7/16 in. (468mm) Features: Designed for 18 Inch cabinet openings 21 Inch Soft close under mount slides prevent slamming and allow for concealed hardware Pre-assembled design allows for quick and easy installation Wood is sealed with a UV coating to protect from natural wear Easily mounts to cabinet bottom High Back with low front allows for easy identification of contents Complete with a limited lifetime Specifications: Assembly Required: No Cabinet Fit: Base Drawer Depth: 18.4375" Height: 9" Material: Wood Minimum Opening Width: 18" Product Weight: 12 lbs Width: 16.0625"Product Variations: ROVHB12-WB: Preassembled 10-1/16 Inch Wide Soft Close High Back Rollout Vanity Shelf System for 12 Inch Base Cabinet Openings ROVHB15-WB: Preassembled 13-1/16 Inch Wide Soft Close High Back Rollout Vanity Shelf System for 15 Inch Base Cabinet Openings ROVHB18-WB (This Model): Preassembled 16-1/16 Inch Wide Soft Close High Back Rollout Vanity Shelf System for 18 Inch Base Cabinet Openings