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    Slides, Undermount
    1. Home
    2. Drawer Slides & Accessories
    3. Slides, Undermount
    Item # KUKING75-18 • Mfr # 280-948

    King Slide 18 inch soft close undermount drawer slides

    • User manual 1, 280-948
      User manual 1, 280-948

    Description

    King Slide 18 Inch Soft Close Undermount Drawer Slides

    King Slide 18 inch soft close undermount drawer slides are full extension slides engineered for hidden mounting under the drawer, so the hardware supports the load while staying out of sight. The undermount design positions the slide set beneath the drawer box, which helps keep drawer sides clean for modern cabinet layouts. Precision engineering in the King Slide undermount system provides a smooth glide opening, so the drawer travel feels consistent from front to back. Extremely light pull opening force reduces effort at the handle, which is useful on frequently used drawers. A hydraulic soft-close mechanism engages the drawer early in the closing motion, so the soft-close function operates over an extended travel distance. That extended soft-close travel helps bring the drawer into the cabinet in a controlled way, supporting quieter operation in finished installations. The slides are designed for use with 3/4 inch drawer side thickness, which aligns with common cabinet drawer construction.

    Key Slide Details That Support Cabinet Work

    • Full extension undermount drawer slides allow the 18 inch King Slide units to pull the drawer fully out of the cabinet opening, giving clear access to the interior for storage and daily use.
    • Precision engineering in the King Slide undermount construction provides a consistent glide, which supports accurate drawer movement when aligning fronts and managing reveals on cabinet runs.
    • Extremely light pull opening force on these drawer slides reduces front load at the handle, which helps during repeated use on kitchen, bath, or shop drawers that are opened and closed many times per day.
    • The hydraulic soft-close mechanism engages early in the closing stroke, giving the drawer a longer soft-close travel, which helps drawers settle into the cabinet quietly and reduces abrupt contact at the front.
    • Designing these undermount slides for 3/4 inch drawer side thickness ties directly to a common drawer box standard, which simplifies layout and sizing when building or replacing drawer boxes.
    • The zinc finish on the King Slide 18 inch undermount slides provides a metal surface treatment, which supports a clean appearance on exposed slide areas at the cabinet rear.

    Undermount Drawer Slide Fit And Installation Use

    The King Slide 18 inch soft close full extension undermount slides are part of the undermount drawer slides class, so they seat beneath the drawer rather than on the drawer side. This placement keeps the cabinet interior visually cleaner while still supporting the drawer box along its length. The slides are designed around 3/4 inch drawer side thickness, giving a clear target dimension when sizing drawer materials. An early-engaging hydraulic soft-close mechanism acts during the closing travel, helping the drawer run smoothly into its final position within the cabinet. The extremely light pull opening force affects how the drawer feels at the front of the cabinet, supporting easier use on wider or heavier drawer fronts. Full extension function allows the drawer to travel out to its rated 18 inch length, supporting access to the full depth of the drawer box.

    Using King Slide Undermount Slides In Cabinet Projects

    Where These 18 Inch King Slide Slides Apply

    These King Slide 18 inch soft close full extension undermount drawer slides sit within the drawer slides and accessories category, in the slides, undermount class, so they are positioned for drawer applications where the slide is hidden below the box. The undermount layout supports projects that call for clean drawer side profiles, because the hardware is not mounted to the visible sides. A design tuned for 3/4 inch drawer side thickness ties directly into drawer boxes built from 3/4 inch stock, which is common in many cabinet shops. The 18 inch length provides a defined travel distance for drawers sized to that depth, supporting consistent layout in base cabinets, vanities, or shop storage built to that length.

    Why These Hydraulic Soft Close Details Matter

    The hydraulic soft-close mechanism on the King Slide undermount system engages the drawer early in its closing motion, giving an extended soft-close travel distance that manages the drawer speed as it returns to the cabinet. That extended control helps drawers settle into their closed position in a more controlled way, which supports quieter operation in completed cabinetry. The extremely light pull opening force affects day-to-day handling, because less effort is needed to start drawer movement from the front edge. Precision engineering in the King Slide undermount slides contributes to a smooth glide opening, which supports accurate front alignment and consistent gap lines across multiple drawers in a run. Full extension travel on these undermount slides lets the drawer move out to its full 18 inch depth, providing access to stored items at the back of the drawer without reaching past the cabinet face.

    Common Questions About King Slide 280-948 Slides

    What type of drawer slide is the King Slide 280-948?

    The King Slide 280-948 is a full extension undermount drawer slide, so it supports the drawer from below while allowing the box to extend fully out of the cabinet opening.

    How does the hydraulic soft close on these slides function?

    The hydraulic soft-close mechanism engages early in the closing motion, giving an extended soft-close travel that controls speed and helps the drawer enter the cabinet smoothly.

    What drawer side thickness do these undermount slides support?

    These King Slide undermount drawer slides are designed for use with 3/4 inch drawer side thickness, aligning with drawer boxes built from 3/4 inch material.

    What is the length and extension of these King Slide undermount slides?

    The slides are 18 inches long and are full extension, so the drawer can travel out to the full slide length for access to the back of the drawer.

    How does the light pull opening force affect everyday drawer use?

    The extremely light pull opening force reduces effort at the handle, which can be useful on drawers opened repeatedly throughout the day.

    What finish is used on these King Slide undermount drawer slides?

    These King Slide undermount drawer slides have a zinc finish, giving the metal surface a treated appearance on visible areas.

    Selecting These Slides For 3/4 Inch Drawer Projects

    The King Slide 18 inch soft close full extension undermount drawer slides bring together undermount positioning, hydraulic soft-close, and extremely light pull opening force for drawer projects built with 3/4 inch sides. The early-engaging soft-close mechanism supports controlled, quiet closing, while full extension travel gives practical access to the entire drawer depth. For cabinet, vanity, or shop drawers designed around 18 inch undermount hardware, these slides offer a defined fit that aligns with common 3/4 inch drawer side construction. Use this King Slide 280-948 set when an undermount layout, soft-close action, and full extension travel are priorities on a drawer installation.

    Drawer Length (in)
    18 in
    Product Type
    Undermount Drawer Slide
    Motion Technology
    Soft-close
    Extension
    Full extension
    Weight Capacity
    75 lb
    Cabinet Type
    Face-frame, Frameless
    Material Type
    Steel
    Maximum Drawer Thickness
    3/4 in
    Minimum Installation Depth
    18 in
    Nomial Length
    15-1/2 in
    Color/Finish
    Zinc
    Manufacturer Series
    King 1B68F
    Supplier Pack Size
    6
    Sold In
    6
    Drawer Length (in)
    18 in
    Product Type
    Undermount Drawer Slide
    Motion Technology
    Soft-close
    Extension
    Full extension
    Weight Capacity
    75 lb
    Cabinet Type
    Face-frame, Frameless
    Material Type
    Steel
    Maximum Drawer Thickness
    3/4 in
    Minimum Installation Depth
    18 in
    Nomial Length
    15-1/2 in
    Color/Finish
    Zinc
    Manufacturer Series
    King 1B68F
    Supplier Pack Size
    6
    Sold In
    6
    9 in12 in15 in18 in21 in24 in
    5/8 in3/4 in
    12 in15 in18 in21 in24 in27 in
    10-1/16 in12-1/2 in15-1/2 in18-1/2 in21-1/2 in24-1/2 in
    King Slide
    $205.92/6 Set
    $34.32 /Set
    24+ items
    $33.76 / Set
    King Slide 18 inch soft close undermount drawer slides
    Item# KUKING75-18 / MFR Part # 280-948
    Set
    Set
    Backorder

    Sold In: 6 Set

    Set

    Additional Accessories

    Quantity
    Unit Price
    Catalog
    Sold in: 6 Set
    KUKING75-12
    Mfr# 280-946
    King Slide 12 inch undermount drawer slides 280-946
    Sold in: 6 Set
    KUKING75-15
    Mfr# 280-947
    King Slide 15 inch undermount drawer slides 280-947
    Sold in: 1 Set
    KUKING75-21
    Mfr# 280-949
    King Slide 21 inch undermount drawer slides 280-949