30 Inch Undermount Drawer Slide For Heavy-Load Cabinetry

The Grass Dynapro in the 30 inch length is a concealed, full-extension undermount slide rated 132 lb per pair — the heavy-duty tier of the Dynapro line, with integrated soft-close, built-in synchronization, and a roller-bearing carriage engineered for wide, deep, and heavily loaded drawers.

Key Features

• 132 lb capacity per pair — the heavy-duty rating that handles overloaded pantry drawers, pots-and-pans pull-outs, and deep utility drawers without strain.
• Full extension — the entire drawer travels out to the cabinet face, giving complete access to the back of a 30 inch box.
• Integrated soft-close — a built-in damper catches the drawer near the end of travel and settles it shut without slamming.
• Built-in synchronization — both slides of the pair track together on wide drawers without any add-on synchronization hardware.
• Face-frame and frameless compatible — installs in either cabinet construction with the appropriate Dynapro-specific hardware.
• Steel construction with zinc finish — roller-bearing carriage delivers smooth, quiet travel under load through years of daily use.

Where This Slide Earns Its Rating

At 30 inches, this is the length for deep base cabinets — typically 24 inch nominal depth boxes that need a longer slide behind them. The 132 lb per pair rating makes it the right pick for drawers that carry real weight: stacked cast iron, full pantry shelves, double-bin pull-outs, and heavy-duty utility storage. Standard 90 to 100 lb undermounts work fine for most kitchen drawers, but when the load climbs or the drawer is deep and wide, this is the tier to specify. The synchronization built into the Dynapro runner keeps both sides tracking evenly across wide openings — no shimmy, no racking, even when the load shifts.

Build and Compatibility

The slide is built for drawer sides between 1/2 inch and 5/8 inch (16mm) thick — the version for 3/4 inch material is a separate model. Side clearance is 5mm per side, so build the box width to the Grass Dynapro specification for the 30 inch nominal length. The cabinet must have at least 30-7/8 inches of interior depth to clear the slide and its rear hardware. In frameless cabinets the slide fastens directly to the side panel. In face-frame cabinets, add the Dynapro-specific rear mounting brackets; they are series-specific and do not interchange with other brands or slide families. The drawer box also needs to be built to the published Dynapro spec — nominal 30 inch length, correct box-width formula, bottom recess, rear notch, and drilling for the front locking devices. Front locking devices are Dynapro-specific accessories; confirm whether they are included with this SKU or need to be ordered separately before building the box.

Who Specifies This Slide

Production cabinet shops building deep base-cabinet runs, designers specifying premium frameless kitchens with wide pantry pull-outs, and custom shops that need a concealed slide with a heavier capacity than the standard Dynapro 100 lb tier. The 30 inch length also suits library and office cabinetry with deep boxes, and utility installs where a durable, quiet-closing undermount at full depth is needed. Homeowners tackling a renovation who want the drawers to feel substantial and stay quiet will find this length and rating covers demanding kitchen storage without compromise.

The Right Foundation for a Heavy-Duty Drawer

When the drawer is deep, wide, and loaded, the 30 inch Dynapro heavy-duty slide closes the gap between standard undermount capacity and what the job actually demands — full extension, 132 lb per pair, and synchronized soft-close motion behind the scenes.