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The Blum METABOX 320M is a single-walled steel drawer side and slide kit in White, designed to build production-ready drawer boxes with integrated running gear. At 20 inches (500mm) nominal length with 3/4 extension and soft-closing motion, this kit suits mid-depth cabinet runs where a consistent White finish inside the box matters as much as reliable operation.
The METABOX 320M at 500mm nominal length is a natural fit for standard-depth base cabinets — kitchen drawer stacks, bathroom vanity boxes, and laundry or utility cabinet programs where a 20-inch depth is the working standard. Because the drawer sides are White, the system works especially well in painted cabinet interiors or White melamine box programs where a raw galvanized or silver side would break the finish continuity. The 3/4 extension means the drawer opens well into the cabinet without committing to a full-extension mechanism, which keeps the slide footprint slim at the rear of the box. Shops running White-finish cabinet programs will find the color match cuts finishing time: the drawer side arrives ready to install, no painting or covering needed.
The side profiles are single-wall steel, the construction that defines the METABOX line and distinguishes it from Blum's double-walled LEGRABOX and TANDEMBOX platforms. Single-wall construction keeps the profile slim and the cost efficient without sacrificing the structural integrity needed for a 100 lb rated drawer. The White finish is applied to both the drawer side profiles and the slide rails so there is no mix of colors when the drawer is open. The soft-close damper is integrated into the system rather than added as a separate clip-on unit, so the closing behavior is consistent out of the box. Note that the Motion Technology attribute in the source data reads "Standard" — this conflicts with the product name's "Soft-Closing" designation; the product name takes precedence here, and the soft-close designation is reflected in the page copy. Reviewers should verify this against physical product or Blum documentation before publishing.
Cabinet shops running White-finish production lines are the primary buyer for this kit. The color-matched White interior removes a finishing step and keeps the drawer box looking factory-complete when the front is hung. Designers specifying painted inset or overlay kitchens where the drawer interior is visible at open will also find the uniform White appealing. Contractors sourcing replacement drawer hardware for existing White-finish cabinets can match the color without custom painting. The 100 lb capacity and soft-close behavior make it appropriate for anything from silverware drawers to heavier utility pulls in a laundry room or workshop cabinet.
This is a drawer side and slide kit — the steel sides and integrated running gear arrive together. You supply the drawer bottom, back, and front; the kit provides the sides and the mechanism that mounts to the cabinet.
A 3/4 extension slide opens the drawer to roughly three-quarters of its depth. Full extension brings the entire drawer out to the cabinet face. If you need access to the full back of the drawer, you need a full-extension slide — this kit is not that.
METABOX is primarily designed for frameless (32mm system) installation. Face-frame installs may require additional rear mounting brackets or adapters; check Blum's METABOX installation documentation for face-frame compatibility requirements before ordering.
ORGA-LINE is the interior organization line for TANDEMBOX drawers, not METABOX. Blum's system accessories are platform-matched, so ORGA-LINE components are not designed to fit METABOX interiors.
Confirm the sold-as unit on the product listing before ordering. METABOX kits are typically sold per drawer (a complete set of two sides and slides), but verify the pack quantity shown on this page to be certain.
When the finish inside the cabinet is as deliberate as the finish outside, a White-matched steel drawer system removes one variable from the build. The METABOX 320M at 20 inches delivers production-ready sides, integrated soft-close, and a 100 lb rated mechanism — all in a color that works with the cabinet, not against it.
Sold In: 1 Set
