Design your own wall ledge shelf, exactly the size you need! This parametric version uses the same clean L-profile design as our ready-made Small/Medium/Large/Extra Large sizes, but every dimension is fully adjustable - perfect for tricky spaces, oversized displays, or custom mounting requirements.

Sometimes a fixed size just isn't quite right. Maybe your wall space is unusual, you need extra depth for larger items, or you want a completely custom look. This parametric file lets you dial in the exact shelf you need, without waiting on a new listing or custom order.

Length

Depth

Back height

Front lip height

Wall thickness

Screw hole layout & spacing

Diamond cutouts (optional on/off)

OpenSCAD (.scad)

• Use ready-made presets (sliders) for quick adjustments
• Or switch to Free Customizer mode to enter any custom values

FreeCAD (.fcstd)

• Edit values directly in the Params spreadsheet
• Press Ctrl+R to recompute
• Export your custom STL, ready to slice

STL: S, M, L, XL ready-made files

STEP: S, M, L, XL ready-made files

3MF: S, M, L, XL ready-made files

• Mounting holes are round, sized to your chosen screw layout
• Diamond cutouts are optional and easy to toggle
• Prints easily with zero supports needed
• Mount with two screws into a stud or rated wall anchor

• Makers who want a shelf sized to fit a specific spot
• Anyone needing dimensions beyond the standard S/M/L/XL sizes
• 3D printing hobbyists who enjoy customizing their own parts
• Anyone building a matched set of shelves at custom sizes

Instant digital download - customize, export, print.

You choose the size.

Customize Preset Ranges:

• Length: 100 - 400 mm (Left-to-right on the wall)
• Depth: 45 - 100 mm (Shelf stick-out)
• Back height: 35 - 90 mm (Tall back against the wall)
• Front lip: 8 - 20 mm (Stops items sliding off)
• Wall thickness: 3 - 6 mm (Plastic thickness)
• Screw spacing (pitch): 40 - 370 mm (Distance between holes)
• Screw hole size: 4.2 - 6 mm (Hole diameter)
• Cutout openness: 0.25 - 0.55 (Diamond pattern)
• End margin: 15 - 30 mm (Solid area at each end)

Free Customizer:Enter any value you need. The values are not limited to the recommended preset ranges above.Unsafe or incompatible combinations stop with a clear error message.

• Size format: Length x Depth x Back height (L x D x H)
• Print size: X = Length, Y = Depth, Z = Back height
• Min print area: >= Length x Depth
• Recommended bed: >= (Length + 20) x (Depth + 20) when it fits
• Z clearance: >= Back height

• Small: 100 x 45 x 35 mm — Compact / tight spaces
• Medium: 220 x 60 x 50 mm — Everyday remotes + bottles
• Large: 300 x 80 x 70 mm — Longer runs / more items
• Extra Large: 400 x 100 x 90 mm — Maximum display length
• Multi Size Variant: All four sizes — Ready-made pack (no tools)

• Process: FDM (FFF)
• Material: PLA recommended (PETG optional)
• Nozzle: 0.4 mm
• Scale: 100% (do not resize after export)
• Layer height: 0.20 mm
• Perimeters / walls: 3
• Infill: 20% Grid
• Supports: None
• Brim / raft: Not needed (skirt optional)
• Approx. print: Slice after export (depends on your size)

Use a bed that fits your exported footprint. Near Small / Medium sizes fit most 250 mm beds; near Large / Extra Large need bigger beds.

How to Customize?

1. Install OpenSCAD (https://openscad.org) if needed.
2. Open wall_ledge.scad.
3. Turn on the Customizer panel: Window -> Customizer (or View -> Customizer).
4. Optional: Design -> Automatic Reload and Preview.
5. Choose a size: Small / Medium / Large / Extra Large, Customize preset, or Customizer.
6. Edit the group that matches that size choice.
7. Press F5 (preview), then F6 (render) if needed.
8. File -> Export -> Export as STL.
9. Slice the STL at 100% with the print settings above.

1. Install FreeCAD.
2. Copy the WallLedge folder into %APPDATA%\FreeCAD\v1-1\Mod\WallLedge.
3. Restart FreeCAD and open wall_ledge.FCStd.
4. Click Params and edit column B only (Length, Depth, Back height, Front lip, Wall thickness, Screw spacing, Screw hole size, Cutout openness, End margin, Show diamonds).
5. Press Ctrl+R to rebuild.
6. Select the Wall Ledge part, then File -> Export -> STL.
7. Slice the STL at 100% with the print settings above.

• Import the STL at 100% scale (do not resize).
• Supports off. Use the print settings above.
• Confirm the bed fits Length x Depth, and Z clears Back height.

Two screws into a stud or rated wall anchors. Hole size and pitch come from your parameters.

• Do not scale the exported STL in the slicer.
• Load-bearing depends on wall fixings, wall thickness, and print quality.
• Files included: .scad and .fcstd plus ready made sizes.

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