Salice Progressa+ 18" Soft-Close Full Extension 170 lb Undermount Drawer Slide, Zinc, G7U9S457CXF6

A High-Capacity Soft-Close Undermount Slide Built for 3/4 Inch Drawer Sides

The Salice Progressa+ 18 inch soft-close undermount slide is a full-extension, concealed runner engineered for drawer boxes with sides up to 3/4 inch (19mm) thick, rated 170 lb per pair — well above the standard kitchen-drawer class. It is designed for frameless cabinets and closes silently on an integrated soft-close damper.

Key Features

• 170 lb capacity per pair — handles oversize, heavily loaded drawers that standard undermounts cannot support.
• Full extension — the entire 18 inch drawer travels out to the cabinet face for complete access to rear contents.
• Integrated soft-close — a built-in damper catches the drawer and settles it shut silently without slamming.
• 3/4 inch (19mm) drawer side compatibility — purpose-built for thicker drawer box construction, not a universal fit across thicknesses.
• Frameless cabinet design — mounts directly to the cabinet side panel in European-style construction.
• Steel construction with zinc finish — functional indoor durability with nothing visible when the drawer is closed.

Where This Slide Belongs

The Progressa+ earns its place on drawers that carry real weight. At 170 lb per pair, it covers applications well beyond the typical 90 to 110 lb kitchen drawer: large pots-and-pans pull-outs, deep pantry drawers loaded with canned goods, utility drawers in workshop or laundry cabinetry, and heavy-duty drawer boxes in commercial or institutional casework. If the drawer is substantial and the box sides are 3/4 inch plywood or hardwood, this slide is sized for that job where a standard undermount is not.

It also fits naturally into high-end residential kitchens where thick-side drawer construction is specified for rigidity and the finished interior demands a fully concealed runner. Full extension means rear spices, utensils, or file folders come all the way out — nothing stays hidden at the back.

Construction and Finish

Steel members with a zinc finish provide reliable indoor service life. The slide stays hidden beneath the drawer box in use, so the zinc finish functions as corrosion protection rather than a decorative element. The integrated soft-close mechanism lives inside the slide body — no add-on damper clip to source separately. Build the drawer box to Salice's published specification for the Progressa+ series: 18 inch nominal length, the correct box-width formula for the series' side clearance, bottom recess, and rear notch with the drilling required for Salice front locking devices.

Who This Is For

Cabinet shops and contractors building frameless casework from 3/4 inch drawer material will find the Progressa+ closes a gap that thinner-side undermounts leave open. Designers specifying premium kitchen packages with thick-side dovetailed or doweled boxes can call this slide with confidence at its rated capacity. Homeowners upgrading a single heavy-duty pull-out — a waste bin, a large file drawer, a deep pantry — get a professionally specified slide without stepping into a full-system replacement. The one constant: the box must be built to the Salice Progressa+ specification, including the side thickness, rear notch, and locking-device drilling.

The Right Slide for a Demanding Drawer

When the drawer is heavy, the box sides are 3/4 inch, and the cabinet is frameless, the Progressa+ delivers the capacity, extension, and silent close the job requires — in a concealed runner that disappears beneath the box.