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The King Slide 12 inch soft-close undermount is a full-extension concealed runner sized for small drawers and shallow cabinets, designed for drawer boxes with sides up to 3/4 inch thick. It suits both face-frame and frameless construction and closes on an integrated soft-close damper with every cycle.
A 12 inch nominal length targets the compact end of the drawer spectrum: bathroom vanity drawers, narrow base cabinet inserts, nightstand drawers, and spice pull-outs in a base cabinet. The 15 inch minimum installation depth means it fits in cabinets that are too shallow for standard 18 or 21 inch slides. Face-frame shops can mount it with the matching series-specific rear mounting brackets in face-frame construction; frameless shops screw directly to the cabinet side panel. Build the drawer box to the King Slide specification for this series — nominal 12-1/2 inch length, box width calculated for the slide's side clearance, correct bottom recess, rear notch, and locking-device drilling — and the drawer seats squarely on the runners.
The slide body is steel with a zinc finish, giving it the corrosion resistance expected from indoor cabinet hardware used daily. The roller-bearing carriage keeps travel smooth and consistent under load, and the integrated damper mechanism does not require adjustment or maintenance under normal residential use. Because the slide mounts beneath the drawer box, the zinc finish stays hidden in service — function, not appearance, drives this choice.
Cabinet shops building compact drawers from 3/4 inch hardwood sides will find this slide covers the thickness that the more common 5/8 inch versions do not. Renovation contractors fitting out small bathrooms or tight base cabinet layouts benefit from the dual face-frame and frameless compatibility, which reduces the need to stock separate SKUs for different job sites. Homeowners replacing worn slides in an existing 12 inch drawer get full-extension access and a quiet soft-close close in one straightforward swap, provided the new box is built to spec.
The maximum drawer side thickness for this model is 3/4 inch. If your box uses thinner 5/8 inch sides, check whether a 5/8 inch version of the King Slide series fits your project better — the two are separate models built around different side clearances.
Yes. Locking clips are included with this slide, so the front fixing hardware is in the box when it arrives.
Yes. The slide is rated for both face-frame and frameless construction. In a face-frame cabinet, the rear of the slide needs series-specific rear mounting brackets — these are not interchangeable with brackets from other brands or slide series, and they are sold separately.
The minimum installation depth is 15 inches. Cabinets shallower than that will not accommodate this slide at the 12 inch nominal length.
Per pair, which is how undermount load ratings are stated throughout this segment. One pair of these slides carries up to 75 lb of drawer and contents combined.
Match this slide to a 3/4 inch box built to the King Slide specification, confirm your cabinet depth clears 15 inches, and add the series rear brackets if your cabinets are face-frame — then every small drawer closes quietly at full extension, every time.
Sold In: 6 Set
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 6 Set |  KUKING75-15 Mfr# 280-947 | King Slide 6-Pair Box 15" Soft-Close Full Extension 75 lb Undermount Drawer Slide, Zinc, 280-947 | ||||
Sold in: 6 Set | KUKING75-18 Mfr# 280-948 | King Slide 6-Pair Box 18" Soft-Close Full Extension 75 lb Undermount Drawer Slide, Zinc, 280-948 | ||||
Sold in: 1 Set | KUKING75-21 Mfr# 280-949 | King Slide 6-Pair Box 21" Soft-Close Full Extension 75 lb Undermount Drawer Slide, Zinc, 280-949 |