White Drawer Side and Slide Kit for Painted Cabinet Interiors

This is a Blum METABOX 320H drawer side and slide kit in White — an 18 inch (450mm), 3/4-extension steel system that pairs the drawer sides and running gear in one coordinated package, sized for painted or white-laminate cabinet interiors where a matching finish matters as much as the hardware itself.

Key Features

• White finish on steel sides — the drawer sides and hardware share the same White coating so the interior reads as one clean, uniform surface.
• 3/4 extension at 18 inches (450mm) — the drawer opens to roughly three-quarters of its length, keeping the slide mechanism tucked inside the cabinet at full extension.
• 100 lb weight capacity per set — rated to handle a well-stocked drawer of dry goods, tools, or workshop supplies.
• 5-7/8 inch side height — a mid-height profile that suits standard kitchen, bath, and shop drawers without overwhelming shallow cabinet openings.
• Steel construction throughout — formed steel sides resist racking and hold their shape under repeated loading.
• Sold as a matched drawer side and slide kit — sides and running gear arrive together, reducing sourcing steps on a multi-drawer project.

Where This System Fits

The METABOX 320H is built for frameless cabinet construction, where the slide mounts directly to the cabinet side on the 32mm grid. It suits kitchen base cabinets, bath vanities, laundry rooms, and shop storage where a 3/4-extension drawer is the practical choice — contents stay accessible without the slide extending fully past the cabinet face. The 18 inch length fits cabinets with roughly 18 to 19 inches of interior depth; verify your cabinet depth against the system's published cutting dimensions before ordering the bottom and back panels.

The White finish makes this kit the right call when the drawer interior will be visible — open-shelf cabinetry, furniture-style vanities, or any build where the inside of the drawer box should look intentional rather than industrial. It also simplifies touch-ups on painted interiors since the side color already matches.

Construction and Finish

METABOX 320H sides are formed steel, powder-coated White. Steel sides hold tighter tolerances than wood box sides cut in the field, and the factory finish eliminates an in-shop painting step on white-interior builds. The Motion Technology on this kit is Standard — the drawer closes under its own momentum rather than with a damped soft-close mechanism. If you need a damped close on these cabinet openings, confirm the soft-close variant before ordering, as the two kits are not interchangeable after the sides are installed.

Who Orders This Kit

Cabinet shops running white-interior frameless lines reach for the METABOX 320H when project specs call for a coordinated look at a production price point. Contractors fitting out rental units or builder-grade kitchens use it where drawer box color consistency across thirty or forty openings matters more than premium motion features. Designers specifying painted cabinetry use it where the drawer interior needs to photograph cleanly — the uniform White surface reads well in finished installation photos. The 100 lb capacity covers virtually every residential drawer application, and the 5-7/8 inch side height suits standard base-cabinet openings without custom sizing.

A Consistent Interior from the First Drawer to the Last

When the cabinet interior needs to look as finished as the exterior, starting with sides that are already the right color saves finishing time and keeps every drawer box consistent across the job.