3" Oak Slotted Grommet

3" Oak Slotted Grommet – Cable Management Insert for Desks & Tables

Efficiently organize cables and cords with this 3" Oak Slotted Grommet, designed for seamless installation in desktops and tables with a 3-inch hole. Crafted from solid oak hardwood, this insert delivers reliable cord routing while providing a refined, natural oak finish that complements both professional and DIY furniture projects. Its fixed-slot design supports neat cable access, fitting workspaces that require durability, compatibility, and a visually cohesive look.

Key Features

• Solid Oak Construction: Built from straight, fine-grain solid oak hardwood for strength and aesthetic appeal suitable for exposed surfaces.
• Fixed Elongated Slot: Neatly directs cables and cords, preventing tangles in workstations, charging stations, classroom tables, and maker desks.
• Drop-In, Friction Fit Design: Simple installation—requires no tools or fasteners. Fits snugly in 2.5-inch holes for reliable hold without adhesives.
• Core Size Consistency: Uniform diameter ensures a cohesive appearance across multiple desks or modular setups.
• Compatible with Cable Caps/Inserts: Supports additional cable security accessories for expanded project flexibility.
• Unfinished Surface: Allows for custom sanding, painting, or staining to match project requirements. Note: May have natural splinters; user finishing required.
• Moderate to High Durability: Handles regular insertion/removal and standard cable handling in classrooms, offices, or workshops.

Specifications

• Outer Diameter: 3.00 in (76.20 mm) ±0.10 in (±2.54 mm)
• Tenon Diameter: 2.50 in (63.50 mm) – fits 2.5 in holes
• Slot Width: 7/8 in (22.23 mm)
• Slot Depth (from edge): 1 in (25.40 mm)
• Slot Shape: Elongated semi-oval, fixed orientation
• Overall Height: 21/32 in (16.67 mm)
• Tenon Height: 7/32 in (5.56 mm)
• Material: Solid Oak Hardwood (Straight, Fine Grain)
• Finish: Unfinished; some splinters may exist
• Color: Natural Oak only
• Weight: ~0.6 lbs (9.6 oz / 272 g)
• Fit Tolerance: ±0.10 in (±2.54 mm)
• Installation: Drop-in plus friction fit
• Required Hole Diameter: 2.5 in (63.50 mm) ±0.10 in (±2.54 mm)
• Country of Origin: USA

Suggested Uses

• Professional & Educational Desks: Route power, data, or HDMI cables in office or classroom tables for clutter-free surfaces.
• Maker & Craft Workbenches: Organize soldering, charging, or computer wiring in maker spaces.
• DIY Furniture Builds: Add a professional cable pass-through to custom desks, AV tables, or shop benches.
• Retail Kitting: Integrate into craft supply sets or modular furniture kits needing cable management.
• Montessori & Learning Spaces: Provide neat cord access for education tech, projectors, or lamp wires with reliable fit.

Frequently Asked Questions

• How do I confirm this grommet will fit my desk or table?
  Measure the diameter of your desk's hole—it must be 2.5 in (63.50 mm), give or take 0.10 in (2.54 mm), for a proper fit. The outer diameter sits flush at 3 in (76.20 mm).
• Is the oak grommet ready for staining or painting?
  The surface is unfinished and not pre-sanded. Sanding is recommended prior to finishing for a smooth result.
• Can the slot accommodate multiple or thick cables?
  Yes, the elongated slot is 7/8 in (22.23 mm) wide and 1 in (25.40 mm) deep, sized to hold several standard power, USB, or HDMI cables.
• Will it work with added cable caps or specialty inserts?
  This grommet is compatible with most standard slotted cable caps and modular inserts, allowing further configuration.
• Is the tenon a press fit or does it require adhesive?
  Installation uses a drop-in friction fit; typically no adhesive is needed unless the hole varies significantly from the 2.5 in specification.
• Can I order in bulk for a larger project or kit?
  Yes, single pieces are available. For bulk or wholesale orders, please contact us for options suitable for classrooms or project kits.
• Do I need special tools to install the grommet?
  No tools required. Simply drop the grommet into a properly sized 2.5 in hole.
• Is there a risk of splinters?
  Because these are unfinished oak, limited splinters may exist. Light sanding is recommended for projects where handling is frequent, or for child-safe projects.
• How durable is the oak—does it chip or crack?
  The solid oak is durable for normal cable management and handling. Not intended for heavy impacts or structural loads.
• Can this be customized for color or finish?
  Absolutely. The unfinished oak accepts paint, stain, or clear coatings to match your design preferences.

If you’re building a workspace, classroom, or project kit that demands quality, reliable cable pass-through, this 3" Oak Slotted Grommet delivers dependable fit and functionality—crafted to support your success from prototyping to finished space.