Heavy-Duty Capacity Undermount Slide For Thick-Sided Drawers and Demanding Loads

This is the Grass Dynapro 30 inch full-extension undermount slide in its heavy-duty, thick-side configuration — a concealed roller-bearing runner with integrated soft-close, rated 132 lb per pair, built for drawer boxes with 5/8 inch to 3/4 inch sides.

Key Features

• 132 lb capacity per pair — the heavy-duty rating in the Dynapro line, sized for large, fully loaded drawers well beyond standard kitchen weight classes.
• Full extension — the entire 30 inch drawer travels out to the cabinet face, putting the full interior within reach.
• Integrated soft-close — a liquid damper catches the drawer near the end of travel and settles it shut without noise or impact.
• 5/8 inch to 3/4 inch drawer side compatibility — built for the thicker box material common in hardwood and heavy-duty plywood construction.
• Face-frame and frameless installation — the slide suits both cabinet constructions with the correct series hardware.
• Steel construction with zinc finish and roller bearings — a proven combination for smooth, quiet travel under sustained load.

Where This Slide Earns Its Place

A 30 inch drawer is already a commitment — long travel, wide box, and often a serious load. Deep pots-and-pans drawers, double-bin waste pull-outs, wide utility drawers in a pantry cabinet, and large workshop drawers all put more demand on the slide than a standard 75 to 100 lb runner is designed to handle. At 132 lb per pair, this Dynapro configuration sits well above the common undermount range and keeps the drawer moving smoothly through its full 30 inch stroke even when the contents are heavy. The full-extension travel means nothing stays hidden at the back of a 30 inch box — every inch of cabinet depth becomes usable space.

Built for Thick-Sided Boxes

Where the standard Dynapro line is engineered around 1/2 to 5/8 inch drawer sides, this version steps up to accept material from 5/8 inch to 3/4 inch. That range covers hardwood-sided shop drawers, thick plywood boxes, and production drawers built from 3/4 inch stock — box types that simply will not fit or seat correctly on a standard-thickness-specification slide. The slide spacing, locking device geometry, and box-width formula are all built around this thicker material. Build the drawer box to Grass's published specification for this Dynapro version: nominal 30 inch length, the correct box width for the 6mm side clearance, bottom recess, and rear notch including the locking-device drilling. The minimum installation depth is 30-7/8 inches, so confirm the cabinet interior clears before ordering. For face-frame cabinets, Dynapro-specific rear mounting brackets are required and sold separately. Locking devices are series-specific to Dynapro and do not interchange with other brands or Grass lines.

Who Reaches for This Configuration

Cabinet shops running production on hardwood drawer boxes will find the thick-side version eliminates the fit problems that come from forcing a 16mm-spec slide onto 19mm material. Custom furniture builders and installers specifying large-format kitchen drawers, laundry room pull-outs, or workshop storage benefit from the capacity headroom — 132 lb leaves room for worst-case loading without approaching the limit. Designers specifying handle-less kitchens should note this model is the soft-close configuration; if push-to-open is needed instead, the Dynapro Tipmatic Soft-close or a dedicated push-to-open model is the correct choice for that application.

Common Questions

The Right Slide for the Heaviest Drawers in the Cabinet

When the drawer is long, the box is thick-sided, and the load is real, this Dynapro configuration covers the spec — full extension, 132 lb capacity, and a soft-close finish on every cycle.