Custom Rack Blank Panels — Clean, Optimized Airflow
1U–4U rack blank panels (filler panels) for server and network cabinets. Seal unused spaces, optimize cooling airflow, keep racks professional and organized.
What is a rack blank panel?
A rack blank panel (filler panel) is a metal plate used to cover unused positions in server rack cabinets. When racks aren't fully populated, blank panels maintain proper front-to-back airflow, preventing hot air recirculation.
Standard blank panels are 19 inches wide, 1U (44.45mm) to 4U tall. Made from SGCC galvanized steel 0.8–1.2mm, powder coated or raw galvanized. Quick-mount with cage nuts or snap-in clips.
Technical Specifications
Manufacturing Process
Laser cut ventilation holes (if required)
Powder coat or galvanized finish
Recommended Materials
SGCC galvanized steel 1.0mm is the most popular choice for blank panels. SS400 with powder coating for higher aesthetic requirements.
Industry Applications
Frequently Asked Questions
Are rack blank panels really necessary?
Absolutely. Blank panels maintain proper front-to-back airflow direction, reducing equipment temperatures by 5–10°C, extending server lifespan and keeping racks professional and organized.
How much do blank panels cost?
1U SGCC blank panel: from $2–4 each. 2U–4U panels proportionally more. Volume orders (>100 pieces) get better pricing. Contact us for bulk quotes.