Salice F70 18" Soft-Close Full Extension 170 lb Undermount Drawer Slide, Zinc, UBF70FFSC-18

Concealed Undermount Slide Built for Face-Frame Cabinets

The Salice F70 18 inch soft-close undermount slide brings full-extension concealed hardware to traditional face-frame cabinetry — rated 170 lb per pair, with an integrated damper that settles every drawer shut without a sound.

Key Features

• Face-frame and frameless compatibility — engineered to mount in both traditional face-frame and European frameless cabinet constructions.
• Full extension — the entire drawer box comes out to the cabinet face, putting the back of the drawer within reach.
• Integrated soft-close — a built-in damper catches the drawer near the end of travel and slows it to a controlled, silent close.
• 170 lb capacity per pair — well above the standard 90 to 100 lb undermount class, handling heavily loaded drawers without strain.
• Made for 1/2 to 5/8 inch drawer sides — sized for the most common dovetailed and doweled box stock.
• Steel construction with zinc finish — durable indoor hardware that stays out of sight beneath the box.

Where This Slide Earns Its Keep

Face-frame cabinets are the standard in American residential kitchens, and getting a concealed undermount to run cleanly in them takes a slide designed for it. The F70 face-frame version accounts for the set-back of the cabinet side behind the face frame, so the rear end of the slide seats on the matching rear mounting brackets rather than floating unsupported. That rear bracket requirement is worth planning for before the order goes in — the brackets are series-specific Salice F70 parts and do not interchange with other brands or lines.

The 170 lb per-pair rating opens up applications that outpace a typical kitchen undermount: deep pots-and-pans drawers loaded with cast iron, utility base drawers in a shop or laundry room, and large file drawers in furniture pieces. At full extension the whole box clears the cabinet opening, which matters when the contents are heavy and awkward to reach around.

Construction and Finish

The F70 is an all-steel slide with a zinc finish — functional, corrosion-resistant for indoor use, and designed to stay hidden beneath the drawer box once it is installed. Because the slide is completely concealed when the drawer is closed, the finish serves durability rather than aesthetics. Build the drawer box to Salice's published specification for the F70 series: nominal 18 inch length, the correct box width for the slide's side clearance, a bottom recess, the rear notch, and the drilling locations for the Salice F70 front locking devices. The locking devices are F70-specific and do not transfer to other Salice lines or other brands.

Who Should Specify This Slide

Cabinet shops and installers working in traditional American face-frame construction will find the F70 face-frame model fits naturally into their workflow — it handles both face-frame and frameless cabinets, so the same slide covers mixed-construction projects. The 170 lb rating makes it the right call whenever a standard undermount's capacity is a concern: waste and recycling pull-outs, heavy pantry base drawers, and oversized utility drawers all fall into range. Homeowners renovating a kitchen with face-frame boxes and wanting a clean, handle-ready interior will get the same benefit from a concealed slide that closes on its own every time.

The Right Slide for Face-Frame Work That Carries Real Weight

Heavy drawers, traditional cabinets, and a clean concealed finish are a demanding combination — the Salice F70 face-frame soft-close undermount is sized and configured to meet all three at once.