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The Blum METABOX 320N is a 20 inch (500mm) drawer side and slide kit in White, pairing a 2-1/8 inch steel side profile with a 3/4-extension soft-closing runner in one matched set. It is built for cabinet shops and installers who want a finished white interior without a separate finishing step.
White interiors matter most where the drawer is on display: open-shelf base cabinets, white shaker kitchens, bathroom vanities with pull-out trays, and laundry room storage where everything stays visible. In those settings, a raw or off-color side profile stands out immediately. The METABOX 320N's White steel profile eliminates that gap. Because the side and runner arrive as a kit sized to the same nominal length, there is no hunting for a matching runner after the sides are cut. Assemble the box, mount the runner, and the white interior reads as one intentional finish choice rather than an afterthought.
The 3/4-extension travel suits the majority of kitchen and bath drawer applications — pots, utensils, grooming supplies, pantry goods — where reaching most of the way back is enough. If your project calls for retrieving items at the very back of a deep drawer, consider a full-extension system instead, since 3/4 extension stops short of complete access.
The METABOX 320N side profile is formed steel finished in White. Steel gives the profile structural rigidity that thinner single-wall polymer sides cannot match, keeping the drawer true under load across the 100 lb rated capacity. The White finish is applied at the factory, so no painting or priming is required after assembly. The soft-closing mechanism is built into the runner rather than added as a clip-on, which keeps the installed depth predictable and the motion consistent from the first close to the thousandth. Motion Technology is listed as Standard in the product attributes — this is a soft-closing unit, not a push-to-open or electrically powered system.
Cabinet shops running white kitchen programs reach for this kit when they want a finished interior without painting drawer sides on the bench. Interior designers specifying white shaker or slab-door kitchens often call for white drawer interiors to match the cabinet box; this kit meets that spec straight from the box. Contractors installing bathroom vanities and linen towers benefit from the 100 lb capacity on drawers that may hold towels, linens, or hardware. For homeowners sourcing replacement hardware for an existing Blum METABOX installation, this 20 inch White kit matches the original profile dimensions and finish for a consistent interior.
It is a drawer side and slide kit. The 2-1/8 inch steel side profile and the 20 inch soft-closing runner come together as one matched set.
This is a 3/4-extension system. The drawer opens most of the way but stops short of full access to the back. If complete access to the back of the drawer is required, choose a full-extension system instead.
The METABOX 320N installs in frameless (European) cabinets as a standard side mount. Face-frame installation requires rear mounting brackets; confirm availability of face-frame accessories for the METABOX series before specifying in face-frame work.
It is built into the runner. No separate damper clip is needed.
This kit does not include a push-to-open mechanism and is not a combined soft-close and push-to-open unit. If handle-less opening is required, look for a Blum system that integrates both functions in one runner.
Specify the METABOX 320N White kit where the drawer interior needs to match the cabinet, the side profile needs to carry real weight, and the close needs to be quiet — without adding a separate damper, a separate runner, or a paint step to the schedule.
Sold In: 1 Set
