Salice Progressa 21" Soft-Close Full Extension 120 lb Undermount Drawer Slide, Zinc, G5U9S533XXF6

A High-Capacity Undermount Runner Built for 3/4 Inch Drawer Sides

The Salice Progressa 21 inch undermount drawer runner is a full-extension, soft-close concealed slide rated 120 lb per pair and engineered specifically for drawer boxes with 3/4 inch (19mm) sides. It mounts in face-frame cabinets and keeps every inch of the drawer hidden beneath the box for a clean, hardware-free look.

Key Features

• 120 lb capacity per pair — handles heavily loaded kitchen, utility, and storage drawers well above the standard 90 to 100 lb undermount range.
• Full extension — the entire drawer box travels out to the cabinet face, giving complete access to the back of the drawer.
• Integrated soft-close — a built-in damper catches the drawer near the end of travel and settles it shut without slamming.
• Designed for 3/4 inch (19mm) drawer sides — the slide spacing, locking device geometry, and box-width formula are built around this material thickness, not adapted from a thinner version.
• Face-frame cabinet construction — made for traditional American face-frame casework with rear mounting bracket support at the back of the slide.
• Steel construction with bright zinc plating — a durable, corrosion-resistant finish suited to years of indoor service.

Where This Runner Earns Its Keep

The 120 lb capacity puts the Progressa above the standard kitchen undermount class, which makes it the right choice for drawers that actually carry weight: pots-and-pans drawers, deep utensil drawers, file and media storage, and pantry pull-outs loaded with canned goods. At 21 inches, the slide length suits standard base cabinet drawer depths. Full extension means the back of the drawer is reachable without digging, which matters most in deep drawers where contents stack up.

Face-frame cabinet shops working with 3/4 inch hardwood or plywood drawer boxes will find this slide fits their material without compromise. The 19mm geometry is native to this model, not a bracket workaround, so the drawer seats squarely and the front aligns cleanly through the Progressa locking devices.

Construction and Finish

Steel members with a bright zinc finish give the runner its structural backbone and protect against corrosion in normal indoor environments. Because the slide mounts beneath the drawer box, the zinc finish is functional rather than decorative — it stays hidden in service. The soft-close damper is integrated into the slide body, so there are no separate damper clips to source or lose.

Who Should Specify This Slide

This runner suits cabinet shops and installers working on face-frame projects where the drawer box stock is 3/4 inch material and load requirements exceed what standard 90 to 100 lb undermounts are rated for. Homeowners doing a kitchen renovation with custom or semi-custom 3/4 inch drawer boxes will find the capacity headroom reassuring on heavy-use drawers. Designers specifying concealed slides for hardwood-sided drawers in traditional-style cabinetry will appreciate that the 19mm version is purpose-built, not an accommodation.

For frameless cabinet work, or for 5/8 inch drawer sides, a different Progressa model is the right fit — this SKU is the face-frame, 3/4 inch version.

Frequently Asked Questions

The Right Undermount for 3/4 Inch Work

When the drawer box is 3/4 inch material, the cabinet is face-frame, and the load is real, the Progressa 21 inch runner delivers the fit, capacity, and soft-close finish that keep the job moving and the drawer running right.