Description

Whirlpool WRT-series top-freezer refrigerators ship with a simple flip tray (WP2188234) retained by a door bar (W11129820) — a shallow single-layer arrangement that has no egg holder and uses vertical door space inefficiently. This rack replaces that assembly entirely, mounting in the same compartment and maximizing the egg storage capacity.

The design is a 5 mm thick flat panel (330 × 144 mm face) perforated with 21 circular cutouts in a 3-row by 7-column grid at a uniform 48 mm centre-to-centre spacing. Two angled leg brackets at the bottom hold the panel at a slight rearward lean against the door liner, and a pair of hook clips at the top retain the panel against the door bar mounting point. The result is a rack that drops in and clips securely — no tools, no modifications to the fridge.

The open lattice construction keeps the rack lightweight, maximizes cold-air circulation around every egg, and makes cleaning trivial: remove, rinse, dry, reinstall.
 

Why 21 eggs and not 18 or 24? 
The usable interior width of the WRT door compartment is exactly 330 mm. At a 48 mm centre-to-centre spacing, 7 positions fill this width cleanly with appropriate edge clearance. Three rows are the maximum that fit within the 144 mm depth of the compartment while maintaining a structural margin between holes at a 5 mm panel thickness. A 3 × 6 layout (18 eggs) would leave ~48 mm of unused width; a 3 × 8 layout (24 eggs) would exceed the compartment boundary. The 21-egg count is a direct consequence of this refrigerator's door geometry.
 

This is an independent, self-designed model. It is not affiliated with, endorsed by, or sponsored by Whirlpool Corporation or Maytag. Part numbers WP2188234 and W11129820 are referenced solely to identify the compatible refrigerator compartment.

Dimensions & Specifications

Refrigerator Compatibility

Designed and test-fitted for Whirlpool WRT-series top-freezer refrigerators. Confirmed compatible with models including WRT311FZDW, WRT318FZDM, as well as closely related SKUs sharing the same 330 mm door liner width and WP2188234 / W11129820 hardware.

Maytag top-freezer models that share the Whirlpool WRT door liner (common across the MRT series) are likely compatible, though this has not been independently verified by the designer. If your door compartment width differs slightly, scale the model uniformly along the X axis in your slicer — the 48 mm hole spacing will scale proportionally, so confirm the resulting hole diameter still clears your egg size before printing.

Print Settings — Elegoo Centauri Carbon 2

The following settings are based on the designer's own prints on the Elegoo Centauri Carbon 2 (256 × 256 × 256 mm build volume, textured PEI plate).

• Orientation: Print upright, standing on the back (door-side) face of the panel. This places the panel vertically on the build plate — 90^o to the orientation it will occupy inside the fridge. This way, it fits the CC/CC2 build plate nicely.
   

• Supports: Highly recommended. The angled leg brackets and the hook clips at the top of the panel overhang significantly in the upright orientation and will not print reliably without support material. Use tree supports or normal supports with a 45° threshold.
   

• Brim: Optional. The upright footprint is narrow, so a 4–6 mm brim on the base edges improves first-layer adhesion and reduces the risk of the part shifting mid-print. Not strictly required on a well-tuned textured PEI plate with PETG.
   

• Material: PETG recommended. It is food-safe, cold-temperature resilient, and dimensionally stable in refrigerator environments. PLA is structurally adequate but may become brittle over time near freezer-adjacent airflows.
   

• Infill: 20–25 % gyroid or honeycomb. The lattice panel geometry is inherently rigid; higher infill adds print time and weight without a meaningful strength benefit.
   

• Wall Loops: 3 minimum. The hook clip region benefits from 4 walls for snap durability.
   

• Layer Height: 0.2 mm standard.
   

• Print Time: Approximately 9.5 hours on the Elegoo Centauri Carbon 2 at standard PETG speed with the settings above.
  
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