20-Inch Full-Extension Drawer System for Deep, Wide Kitchen and Shop Drawers

The Grass ZBox 6423 is a steel drawer side and slide kit sized for deeper cabinet runs, pairing a 20-1/16 inch nominal length with a 9 inch side height and full-extension travel. The white epoxy finish and 100 lb capacity make it a practical choice for wide kitchen drawers, pantry pull-outs, and shop casework where reach-in access and a clean interior look both matter.

Key Features

• 20-1/16 inch nominal length suits deeper base cabinets and pantry pull-outs that a standard 18 or 21 inch kit doesn't fit cleanly.
• 9 inch side height provides a tall drawer wall that contains bulkier items and supports a higher front panel.
• Full-extension travel brings the entire drawer out to the cabinet face, giving unobstructed access to contents at the back.
• 100 lb weight capacity handles loaded pantry drawers, hardware bins, and heavy shop stock without flex.
• Steel construction with white epoxy finish keeps the system rigid and the interior looking consistent with painted or white-laminate cabinetry.
• Sold as a drawer side and slide kit — the side profiles and running gear arrive together as one matched unit per drawer.

Where This System Fits Best

The 20-1/16 inch length targets cabinet depths that fall between the most common 18 and 21 inch sizes — a frequent real-world dimension in pantry towers, deep base cabinets, and shop utility cases. Full extension at this length means dishes, canned goods, or heavy tools at the far end of the drawer are reachable without leaning in. The 9 inch side height suits drawers that carry tall or bulky contents: think pots, large food-storage containers, folded shop rags, or stacked boxes. Cabinet shops building painted frameless cases and homeowners replacing a worn metal drawer system in a white kitchen are both squarely in the target for this kit.

Construction and Finish

The ZBox 6423 uses formed steel side profiles finished in white epoxy — a durable baked-on coating that resists chips and scuffs in daily-use environments. Steel construction keeps the side walls stiff across the full 20-inch span, which matters when the drawer is loaded to its 100 lb limit. The white finish integrates with white-painted interiors and white melamine cabinet boxes so the drawer system reads as part of the design rather than an afterthought. Confirm your drawer box dimensions against the ZBox cutting formula before assembly; the box width, bottom clearance, and rear notch must meet Grass's published specification for the system to seat and run correctly.

Who Orders This Kit

Cabinet shops building deep pantry towers in a white kitchen layout reach for this length when an 18 inch kit leaves wasted cabinet depth and a 21 inch kit won't close. Contractors refreshing builder-grade casework in painted kitchens use it to match the existing white interior. Shop builders fitting utility cases with heavy drawers value the 100 lb rating and the full-extension reach. For anyone working in an existing cabinet line, matching the nominal length to the cabinet's actual interior depth is the critical first check before ordering.

The Right System at the Right Depth

When the cabinet depth calls for a 20-inch drawer and the load calls for 100 lb of capacity, this ZBox 6423 kit covers both requirements in a white finish that disappears into the interior — so the drawer does its job and the contents stay front and center.