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This is a 20 inch (500mm) TANDEMBOX drawer profile from Blum, sold as a matched left-hand and right-hand pair in Gray steel. It forms the structural side walls of a TANDEMBOX drawer box at a 2-3/4 inch (68.5mm) side height, integrating the full-extension runner into the profile so the box and slide arrive as one engineered unit.
The 20 inch nominal length is one of the most common depths in residential base cabinets, making this profile a natural choice when building or replacing drawers in standard kitchen and bath casework. The low 2-3/4 inch side height works well in top-drawer positions where vertical clearance is limited — utensil drawers, cutlery drawers, and shallow utility drawers all land in this range. Because the runner is built into the profile rather than added as a separate slide, the full-extension travel is part of the system by design, not a retrofit. At 100 lb capacity, the pair handles anything a kitchen or bath drawer realistically carries.
The profile is formed steel finished in Gray — a mid-tone that sits between the cooler Orion Gray Matte and the warmer tones of some competitive systems. In a painted or white-laminate interior, Gray reads as a functional neutral and stays visually quiet behind the drawer front. The steel structure carries the runner load without flex, and the double-walled TANDEMBOX profile conceals fasteners and presents a smooth face on both the inner and outer wall. This is a system component, so the drawer bottom, back panel, and front fixing brackets are ordered separately to the TANDEMBOX cutting formulas — the profile is not a complete drawer box on its own.
Cabinet shops building TANDEMBOX kitchens in volume will keep this length and height in regular rotation for standard base-cabinet drawer stacks. Designers specifying Blum hardware who need a consistent Gray interior across multiple drawer heights will pull this profile for the low-profile positions. Contractors replacing a single damaged drawer member on an existing TANDEMBOX installation will find the left-hand and right-hand pairing means one order covers the whole drawer. The Gray finish is a practical choice when the drawer interior is visible and a warmer, more neutral tone is preferred over a stainless look.
These are the side profiles only. The TANDEMBOX system requires the drawer bottom and back panel to be cut and ordered separately according to Blum's published cutting dimensions for this nominal length and height. Front fixing brackets are also separate parts.
It includes both the left-hand and right-hand member, so one purchase completes the two sides of a single drawer.
TANDEMBOX motion components — BLUMOTION soft-close and TIP-ON push-to-open units — are series-specific and must match the profile series. Confirm the motion accessory is made for the 358N series before ordering.
Yes. ORGA-LINE is Blum's interior organization line for TANDEMBOX drawers; its modular trays are designed to work within TANDEMBOX profiles at this nominal length. Select ORGA-LINE components sized for a 500mm (20 inch) drawer.
The 2-3/4 inch (68.5mm) side height is a low-profile option within the TANDEMBOX range, suited to top drawers and shallow applications. Taller side heights are available in the TANDEMBOX line for pot drawers, pantry pull-outs, and deeper storage drawers.
When a Gray interior is the right call for the job — a warm-neutral finish that disappears behind the front — this 20 inch TANDEMBOX profile at 2-3/4 inches brings the full-extension, 100 lb capacity system to standard base-cabinet depth without overbuilding the drawer height.
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