Middle Atlantic Custom Shelf, 4 RU, 20.5\"D, Textured

Engineered for rugged rack environments, the Middle Atlantic Custom Shelf provides a precise, professional mounting solution for 19" enclosures. The 4 RU high, 20.5" deep textured shelf is designed to accommodate a wide range of components with a face opening tailored by RSH custom rackmounts, delivering a neat, trim installation that looks as good as it performs. This approach minimizes gaps, reduces vibration, and helps maintain consistent airflow around mounted devices.

Whether you're assembling a compact audio rack, a multi-channel processing station, or a distributed AV interface array, this shelf delivers a reliable, plug-and-play mounting platform. The textured finish resists wear in busy studios and control rooms, while the sturdy steel construction supports repeatable performance over time. The RSH integration provides a precise, face-optimized opening that reduces installation time and eliminates the need for adapters or faceplates, resulting in a clean, factory-finish appearance that enhances the overall rack presentation.

• Custom cut to provide a perfect opening for the component front — no awkward gaps or misalignment. The RSH design means the shelf is tailored to each component’s face profile, delivering a clean, professional appearance from the moment you slide it in. This precision also aids airflow by minimizing obstructions around the component.
• RSH custom rackmounts allow installation in a standard 19" enclosure without modification. With the opening trimmed to match the front of your device, you can mount with confidence and avoid jury-rigged adapters. The result is a snug, finished look that respects rack rails and keeps controls accessible.
• 4 RU height and 20.5" depth maximize available rack space while accommodating deeper devices, power strips, or multi‑in‑one interfaces. The extra depth ensures rear cabling has room to pass without crowding, and the 4-unit height provides ample room for front‑panel controls while keeping equipment aligned with the rack face.
• Textured finish adds durability and a premium aesthetic; hides fingerprints and minor scuffs in high‑use environments; complements other Middle Atlantic rack components for a cohesive, professional look.
• Neatly-trimmed installation with consistent, repeatable results, thanks to precision manufacturing and a reliable mounting method. The combination of the custom cutout, rugged steel construction, and easy-to-follow mounting steps helps reduce downtime and leaves you with a tidy, dependable rack configuration.

Technical Details of Middle Atlantic Custom Shelf

• RU height: 4 RU — designed to occupy four rack units in a standard 19" rack.
• Depth: 20.5 inches — optimized for deeper components while preserving airflow and cable clearance.
• Finish: Textured — durable, professional-grade finish that resists wear and fingerprints.
• Rack compatibility: Standard 19" enclosure — compatible with most equipment racks used in commercial studios and AV installations.
• Mounting system: RSH custom rackmounts with precisely trimmed face openings — ensures a perfect fit and clean look.

how to install Middle Atlantic Custom Shelf

• Power down and unplug all equipment inside the rack before handling the shelf to prevent damage and ensure safety.
• Remove any existing shelf or obstructing panels from the rack, exposing the 19" rails and mounting space.
• Position the shelf so the custom RSH opening aligns with the front face of the component you are mounting; confirm that the opening provides full access to connectors and controls.
• Slide the shelf into the rack along the rails until the face of the component sits flush with the rack front and the mounting holes line up with the rails.
• Secure the shelf using the rack mounting screws, then route cables cleanly around the shelf area to maximize ventilation and minimize cable clutter.
• Power up the system and verify that the component operates correctly and that there is no interference with neighboring equipment.

Frequently asked questions

• Q: Is this shelf compatible with a standard 19" rack?

  A: Yes. The Middle Atlantic Custom Shelf is designed for standard 19" racks and uses RSH custom rackmounts to provide a precise, face-mitted opening for the mounted component.

• Q: Can I install the shelf without modifying my equipment?

  A: Yes. The RSH system creates a custom opening so no additional modification is required to mount compatible components within the standard rack space.

• Q: What is the advantage of the textured finish?

  A: The textured finish enhances durability in busy environments, reduces visible wear, and maintains a professional appearance while blending with other rack components.

• Q: Are there any special ventilation considerations?

  A: The 4 RU, 20.5" depth design leaves ample room for cables and airflow around the mounted component, helping to maintain proper cooling in typical rack configurations.

• Q: Where can I find more technical specifications?

  A: Specific data such as weight rating and exact tolerances are typically listed in product documentation or the manufacturer’s spec sheets; refer to official Middle Atlantic resources or contact support for the most accurate figures.