IKEA RUDSTA astragal - plant display case

Center Astragal (Stulpleiste) for Double-Door Vitrines & Plant Cabinets

This modular center astragal system is designed to close the vertical gap between two meeting doors in the IKEA RUDSTA vitrine (https://www.ikea.com/de/de/p/rudsta-vitrine-anthrazit-50450137). The double-door showcase has a visible air gap in the middle where both doors meet. This causes humidity loss and temperature instability– all of which are critical for growing tropical plants, cuttings, and moss.

This printable multi-part astragal (stulpleiste) creates a tight overlapping seal between both doors, just like professional double-window systems. One door becomes the fixed leaf, the other overlaps it cleanly, blocking air exchange without needing rubber seals or complex hardware.

Why this matters for plant cabinets

High-humidity plant setups (Monstera, Calathea, Alocasia, moss, cuttings, etc.) need:

• Stable humidity
• Reduced air leakage
• Consistent temperature
• Less frequent misting or humidifier use

This astragal dramatically reduces the biggest leak point of most cabinets:
the center door gap.

Features

• Modular multi-part system (for better prints)
• Creates a professional overlapping door seal
• No permanent cabinet modification required
• Fully printable on standard FDM printers
• Fitted to IKEA RUDSTA (https://www.ikea.com/de/de/p/rudsta-vitrine-anthrazit-50450137)

How it works

One printed strip is mounted to the left door (stand leaf).
The right door then closes against it and overlaps the edge, sealing the middle gap.

This mimics a French door / stulp system, widely used in windows and greenhouse construction.

Recommended print settings

• Material: PLA
• Layer height: 0.2 mm
• 3–4 walls
• No infill required
• Tree support required for handle and top part