Blum 563F Tandem Plus Blumotion 21" Soft-Close Full Extension 90 lb Undermount Drawer Slide, Zinc, 26275152

Undermount Drawer Slide For Thicker Drawer Boxes

The Blum 563F TANDEM plus BLUMOTION is a 21 inch full-extension soft-close undermount slide engineered specifically for drawer boxes with 5/8 to 3/4 inch sides. Where the standard 563H series tops out at 5/8 inch material, the 563F series opens the door to shops building from thicker hardwood or plywood stock, keeping the same full-extension travel and integrated BLUMOTION soft-close at 90 lb per pair.

Key Features

• 5/8 to 3/4 inch drawer side compatibility — the defining spec of the 563F series, covering thicker hardwood and plywood box construction.
• Full extension — the entire 21 inch drawer comes out to the cabinet face so the back of the box is fully reachable.
• Integrated BLUMOTION soft-close — Blum's damper catches the drawer in the last inch of travel and settles it shut silently.
• 90 lb weight capacity per pair — handles loaded kitchen and bath drawers without strain.
• Steel construction with zinc finish — runs on roller bearings for quiet, smooth travel through years of daily cycles.
• Suits face-frame and frameless cabinets — a single slide version for both construction types with the correct mounting hardware.

Where the 563F Fits in a Drawer Build

Shops that build their boxes from 3/4 inch hardwood — walnut, maple, cherry sides cut to full thickness — or from 3/4 inch Baltic birch plywood routinely run into the wall with standard 563H slides, which are engineered for material up to 5/8 inch. The 563F is built around the same slide geometry but opens the side-thickness tolerance to accommodate material from 5/8 to 3/4 inch. That tolerance makes the 563F the right call for premium custom casework, furniture-grade drawer boxes, and any shop that does not thin its sides down to 5/8 inch for a slide requirement.

The 21 inch length suits standard base cabinet drawers and kitchen drawer stacks. Full extension means the entire box clears the cabinet opening, which matters when the drawer is carrying items stored at the back — pots, pans, deep utensil trays, or file inserts.

Materials and Motion

The 563F runs on roller bearings in steel members finished in zinc. Zinc keeps the steel protected through the moisture and humidity cycles of a residential kitchen or bath without requiring a decorative finish — the slide is out of sight beneath the box when the drawer is open. The 3/16 inch side clearance built into the series keeps the drawer box positioned precisely on the cabinet interior.

BLUMOTION is Blum's integrated soft-close damper, built into the slide body rather than added as an accessory. It operates automatically on every close, requiring no adjustment and no separate installation step. The result is the consistent, quiet close that kitchens and bath vanities demand.

Who This Slide Is For

Custom cabinet shops building from full-thickness lumber or 3/4 inch sheet goods will find the 563F fits their box stock without a secondary milling step to reduce sides. Interior designers and contractors specifying premium residential kitchens get the concealed look, soft-close feel, and Blum system reliability in a version that accommodates the thicker material their shops already use. Volume buyers outfitting a run of furniture-grade drawers can source the 563F across multiple lengths to keep the same Blum system throughout the project.

The Right Slide When Your Box Is Built to Stay

When the drawer box is built from full-thickness stock and the install calls for full access, soft-close, and a clean concealed look, the 563F delivers all three without asking you to mill your sides down to fit a lesser spec.