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Knape and Vogt undermount drawer slides in the KVGS-2070B 21 model give a 21 inch length with full extension travel, so drawers open completely and expose the full interior for easy access to stored items and hardware. The soft-close action on these slides slows the drawer at the end of travel, which helps protect drawer fronts and cabinet faces from impact during daily use. A roller bearing type design supports the movement, giving a consistent glide along the telescopic action for predictable opening and closing. These slides use a handed slide configuration, so each side of the drawer runs on a dedicated member that is built for that orientation. A zinc finish covers the slide members, providing a uniform surface that resists normal shop and cabinet environments while matching other zinc-coated hardware. This product sits in the undermount drawer slides class, keeping hardware out of sight beneath the drawer for a clean cabinet appearance.
The 21 inch length on the KVGS-2070B 21 defines the cabinet depth needed for these undermount slides, guiding carcass layout when sizing drawer boxes to match. A telescopic action structure allows the slides to extend fully while retracting into the available cabinet depth, so installers can plan clearances knowing the hardware will collapse within the specified length. With a drawer material thickness range of 1/2 inch to 5/8 inch, side clearances and groove locations can be laid out around that known requirement for a repeatable fit. The 32 mm hole pattern provides fixed reference points, letting jigs or line-boring patterns locate screws in a consistent relationship to cabinet edges and face frames. Face-frame mounting support ties the undermount members to the frame, integrating the slides into both frameless-style system holes and traditional framed front construction. The handed configuration clarifies which member belongs on each side, reducing trial-and-error during installation.
This product is classified as an undermount drawer slide, so it is intended to sit beneath the drawer box rather than along the sides, keeping the hardware hidden while the drawer operates. The 21 inch length gives it a role in cabinets that are sized to accept that depth, such as base cabinets or deeper utility cabinetry. A load specification of 75 lb. positions these slides to support drawers carrying everyday kitchen, bath, shop, or office contents within that weight range. Because the drawer material thickness is specified between 1/2 inch and 5/8 inch, these slides align well with drawer boxes built from common hardwood or plywood stocks in that band. The face-frame mounting capability connects undermount performance to face-frame cabinet construction, so both traditional and more system-based cabinets can use the same KVGS-2070B 21 slides in standard applications.
The full extension travel lets drawers move completely out of the cabinet opening, which simplifies accessing the entire contents and reduces reaching into the carcass. Soft-close action works with that full extension by managing the return stroke, so drawers can be pushed shut and then guided to a gentle close that is kinder to joints and finishes. The roller bearing type supports the telescopic movement with rolling contact, which promotes a repeatable feel each time the drawer is opened or closed. A telescopic action also means the slide members nest efficiently, so the full 21 inch length can deliver full extension within the cabinet depth. The lever release disconnect helps during adjustments or service because drawers can be removed without detaching the fixed cabinet members, keeping reference points intact. The zinc finish provides a consistent surface on all members, supporting long-term function in typical cabinet environments while visually coordinating with other zinc-coated slide products in the same space.
The KVGS-2070B 21 is a Knape and Vogt undermount drawer slide with a roller bearing design and telescopic, full extension action, so it supports smooth motion beneath the drawer box.
The KVGS-2070B 21 slides are specified for drawer material thickness from 1/2 inch to 5/8 inch, guiding drawer box side construction so the undermount hardware fits as intended.
The soft-close action on these slides slows the drawer near the end of travel, reducing slamming and helping protect drawer fronts, face frames, and contents during repeated opening and closing.
The KVGS-2070B 21 slide has a 75 lb. load rating, supporting many standard residential and light commercial drawer applications that fall within that specified capacity.
This undermount slide is listed with face-frame mounting, so it is designed to attach within face-frame cabinet construction while providing full extension and soft-close performance.
The KVGS-2070B 21 uses a 32 mm hole pattern, aligning with system-drilled cabinets so slides can be positioned on consistent vertical and horizontal reference lines.
The KVGS-2070B 21 soft-close, full extension undermount drawer slide from Knape and Vogt combines a 21 inch length, 75 lb. load rating, and 1/2 inch to 5/8 inch drawer material range to support many cabinet drawer layouts. With a 32 mm hole pattern, face-frame mounting, roller bearing design, and zinc finish, it fits into both traditional and system-based cabinetry. For projects that call for undermount hardware with soft-close action and complete drawer extension, this Knape and Vogt undermount drawer slide offers a defined set of specs to build around.
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