Strong SR-CUST-SP-21U-20IN Rack Mount Spacer Panel 21U

Product Description

The STRONG SR-CUST-SP-21U-20IN is a custom rack mount spacer panel designed for use in standard equipment racks. Spanning 21U of vertical rack space at 20 inches in depth, this spacer provides a clean, structured fill solution for open rack positions. It is used by AV integrators, network technicians, and low-voltage installers to manage rack layout, airflow, and cable organization within enclosed or open-frame rack systems. The panel ships as a single unit and is suited for professional rack builds where blank panel coverage is required across a large vertical run.

This spacer panel is applied in commercial and residential rack installations where unused rack space needs to be covered or organized. It is particularly useful in AV equipment racks, server enclosures, and structured wiring cabinets where maintaining proper airflow management and a clean rack face are installation priorities. The 21U span makes it well suited for larger rack configurations requiring extended blank coverage in a single panel.

Key Features

• 21U height covers a large vertical section of rack space in a single panel
• 20-inch depth dimension fits standard rack configurations
• Blank panel design supports airflow management and rack aesthetics
• Sold as a single unit for flexible quantity ordering
• Designed for use in rackmount accessory applications by trade installers

Compatibility

Designed as an OEM-style replacement or fill panel for standard 19-inch rackmount enclosures and open-frame rack systems requiring 21U blank spacer coverage.

Installation Notes

Low-voltage or AV technicians typically install rack spacer panels as part of a structured rack build or retrofit. No power shutdown is required for spacer panel installation, though all active equipment in the rack should be handled with care to avoid accidental disconnection. Standard rack screws or cage nuts appropriate to the rack rail type should be used for secure mounting. Follow any applicable low-voltage installation standards or manufacturer rack-build guidelines during installation.