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This is a Blum METABOX 320K drawer side and slide kit pairing a 22-inch (550mm) steel runner with a 4-5/8-inch white side profile, designed to build a complete single-wall drawer box in white-finished cabinetry. The kit brings the runner and side together as one matched unit, so you cut your front, bottom, and back to spec and assemble a working drawer from a single order.
The METABOX 320K 22-inch kit suits base cabinet drawers, utility drawer banks, and shop drawers where a clean white interior is a specified finish requirement. The 3/4 extension brings most of the drawer contents into reach — cutlery, tools, office supplies — without requiring the full-extension geometry of a premium undermount system. It is a straightforward choice for production cabinet shops specifying a consistent white interior across a run of boxes, and for renovation work where the existing cabinet depth calls for a 22-inch runner. Note that 3/4 extension means the rear portion of the drawer stays inside the cabinet when the drawer is fully open; if full access to the back of the box is critical, a full-extension slide is the right call.
The side profile and runner are steel throughout, finished in white to coordinate with white melamine cabinet boxes and painted face frames. The single-wall METABOX profile is a sturdy, economical construction — thinner in appearance than a double-walled system like LEGRABOX or MERIVOBOX, but proven in high-volume cabinet production. The white coating on the side profile faces the interior of the cabinet, so it is the visible surface the homeowner or end user sees when the drawer opens. The self-closing mechanism is a ramp-style positive close, not a damped soft-close; the drawer snaps shut rather than gliding in silently. If a damped close is required, specify a BLUMOTION-equipped system instead.
Cabinet shops running white-interior kitchens will find the 320K kit a consistent, repeatable drawer build: one part number delivers side and runner together, the self-close ramp handles the closing function without additional hardware, and the 100-lb weight rating per pair covers typical kitchen drawer loads. Renovation contractors sourcing a replacement drawer side and runner for an existing METABOX installation should confirm the cabinet depth and existing side height before ordering, as the 22-inch length and 4-5/8-inch height are specific to this variant. Homeowners building a DIY drawer in a laundry room, mudroom, or garage cabinet will find the white finish and self-closing action a tidy, low-maintenance solution.
The 100-lb rating is per pair — one kit on each side of the drawer. That is the working load for a single complete drawer installation.
A 3/4-extension slide opens the drawer to roughly three-quarters of the runner length — on a 22-inch slide, approximately 16 to 17 inches of travel. The rear of the drawer box remains inside the cabinet at full extension. For complete access to the back of the box, a full-extension runner is needed.
No. The self-closing ramp pulls the drawer shut positively over the last inch — it is a spring or ramp close, not a damped close. Soft-close uses a hydraulic damper to slow the drawer gradually and silently. This kit does not include a damper.
This listing is for one side-and-slide assembly. Order two kits — one for the left side and one for the right — to complete a single drawer installation.
The standard self-closing ramp on the 320K conflicts with a mechanical push-to-open device; the two closing forces work against each other on plain METABOX runners. If a handle-less push-to-open front is required, look to a system designed with TIP-ON BLUMOTION or a comparable combined unit.
The METABOX 320K 22-inch kit in white gives you a matched runner and side profile in one order, a self-closing close that keeps the drawer shut without extra hardware, and a white finish that disappears into a white cabinet interior. Cut your front, bottom, and back to the METABOX cutting specification and the drawer goes together cleanly — no finish work, no mismatched components.
Sold In: 1 Set
