Under-Shelf Hook (Fits Any Shelf / Desk / Cabinet)

The "Fits Anything" Under-Shelf Hook

If you have a flat horizontal surface—like a desk, a kitchen cabinet, or a bookshelf—this hook turns that edge into usable storage.

Because it is parametric, you can generate a hook that fits your specific furniture perfectly, whether it's a thin metal shelf or a thick wooden desk.

Key Features

• Fully Parametric: Adjust shelf thickness, hook depth, and size.
• New! Adjustable Position: Move the hook forward for easy access or backward for heavy loads (reduces leverage).
• Zero Supports: Designed to print on its side for maximum strength and easy printing.
• Stress-Relieved: Features internal fillets (rounded corners) to prevent snapping under load.
• Perfect Fit: Adjust the tolerance for a tight "snap-fit" or a loose "slide-fit."

Other parametic hooks :

• If you need an over the door hook, use this parametci model: https://makerworld.com/en/models/2203917-parametric-over-the-door-hanger-fits-any-door 
• If you need a S hook for a Rod, use this parametric model : https://makerworld.com/en/models/2249102-parametric-s-hook-for-closet-rods-any-size 
• If you need a wall hook, use this parametric model: https://makerworld.com/en/models/2421867-customizable-wall-hook-any-size

How to Customize : Press the green customize button

Parameters:

• shelf_thickness: Measure your shelf with calipers!
• clip_depth: 40-50mm is standard; go deeper for heavy items.
• tolerance: Use 0.2mm for a tight grip, 0.5mm for a loose slide.
• hook_position_percent: Set to 0 for the front edge, 50 for the middle, or 100 for the back.
• hook_drop: How far the hook hangs below the shelf
• hook_radius: Radius of the curved J‑hook
• hook_tip_height: Vertical extension at the end of the hook
• model_width: Width of the model 
• wall_thickness: Thickness of the clip and hook walls

Print Settings

• Orientation: Print on side. The file generates the model lying flat. Do not rotate it upright. This ensures the layer lines run the length of the hook, making it strong.
• Supports: None.
• Walls/Perimeters: 4 to 6 walls (Strength comes from walls, not infill).
   

Also check out some of my other 160+ designs: 

John_M | Published - MakerWorld