GSlide 21" Soft-Close Full Extension 75 lb Undermount Drawer Slide, Zinc, KVGS-2070AB 21

Knape and Vogt GSlide Undermount Drawer Slide For Soft-Close Full Extension in Face-Frame and Frameless Cabinets

The Knape and Vogt GSlide 21 inch undermount drawer slide is a concealed, full-extension runner with integrated soft-close, built for drawer boxes with 1/2 to 5/8 inch sides and rated 75 lb per pair. It suits both face-frame and frameless cabinet construction, making it a flexible choice for shops that build across multiple cabinet styles.

Key Features

• Full extension brings the entire 21 inch drawer out to the cabinet face for complete access to contents at the back.
• Integrated soft-close catches the drawer near the end of travel and settles it to a quiet, controlled close without slamming.
• 75 lb weight capacity per pair handles loaded kitchen and bath drawers comfortably within the standard undermount range.
• Face-frame and frameless compatibility lets this slide work across both cabinet construction styles from a single SKU.
• Roller-bearing carriage on steel members with zinc finish provides smooth, consistent travel through years of everyday use.
• Fits drawer sides from 1/2 to 5/8 inch thick, covering the most common dovetailed and doweled box materials.

Where This Slide Fits the Job

The 21 inch length suits standard kitchen base drawers and deeper bath vanity drawers where a concealed slide is preferred over a visible side-mount. Full extension means nothing stays buried at the back — the whole drawer comes forward. In a face-frame cabinet, the slide's rear end needs support from rear mounting brackets; in a frameless cabinet, it fastens directly to the side panel. Either way, the front locking devices connect the drawer box to the runners and allow post-install alignment. Build the drawer box to the GSlide specification for the 21 inch nominal length, including the correct box width, bottom recess, rear notch, and locking-device drilling — an off-spec box will not seat correctly on undermount runners.

Materials and Finish

Steel members with a zinc finish give this slide the corrosion resistance and structural rigidity it needs for indoor cabinet service. The roller-bearing system runs quietly under load and holds its motion quality over repeated cycles. Because the slide mounts beneath the drawer box and is fully concealed when the drawer is open, the zinc finish is functional hardware rather than a visible design element — nothing interrupts the clean look of the drawer interior.

Who Reaches for This Slide

Cabinet shops building for residential kitchens and baths will find the GSlide's dual face-frame and frameless compatibility useful when their customer base spans both construction styles. The 21 inch length is long enough for a standard 21 inch drawer in a 24 inch base cabinet, and the 75 lb rating comfortably covers spice drawers, utensil drawers, and moderate-weight storage applications. Homeowners replacing worn slides on an existing cabinet can use this runner in either cabinet type without sourcing a style-specific SKU. For heavier loads or wide drawers that need synchronized travel, step up to a higher-capacity undermount line.

Common Questions

A Concealed Runner That Works Across Cabinet Styles

The GSlide 21 inch undermount delivers full extension and soft-close in a single slide that handles both face-frame and frameless work — build the box to spec, add the appropriate rear brackets for your cabinet type, and the drawer runs clean and quiet from day one.