Middle Atlantic MRK-4036LRD – 40U 36 in. Deep Rack, No Rear Door

Product Overview

The Middle Atlantic MRK-4036LRD is a 40-space, 36-inch-deep multibay MRK Series rack configured less rear door, built for installing contractors running larger multi-bay equipment-room jobs. The MRK platform pairs a rugged, space-saving 22-inch-wide footprint with a high seismic load rating and available seismic certification, making it a dependable specification where structural performance is part of the project requirement. The less-rear-door configuration suits ganged rows, cable-chase access, or projects that specify rear access hardware separately.

Product Description

The MRK-4036LRD provides 40 rack spaces at a 36-inch interior depth, enough for deep AV processors, amplifiers, UPS units, and full-depth rack equipment common in commercial AV integration. Fully welded construction gives the frame the strength to hold rail alignment under complete equipment loading, and MRK racks are engineered to gang together even when fully loaded, a practical advantage when bays are assembled and populated before final row placement. Multiple lacing points and slotted rail brackets give installers flexible anchor positions for structured cable management throughout the bay. Standard front and rear adjustable 10-32 threaded rackrail with numbered spaces speeds elevation layout and keeps installed positions consistent with rack drawings. The high seismic load rating and available seismic certification make the MRK series appropriate for government and institutional projects with code-driven structural requirements. Open or removable side options support service access and side-to-side cable passage between ganged bays. Shipping less rear door keeps the rear open for chase-side access in equipment rows, and a compatible Middle Atlantic rear door can be added later if the installation calls for an enclosed bay. The MRK-4036LRD is available from Creation Networks, along with the rest of the Middle Atlantic rack lineup.

Key Features

• 40 Rack Spaces, 36-Inch Depth — Capacity for deep AV processing, amplification, and power equipment in one bay.
• Fully Welded Construction — Frame strength that maintains rail alignment under complete equipment loading.
• High Seismic Load Rating — Seismic certification available for code-driven institutional and government installations.
• Gangs When Fully Loaded — Bays join into rows even after equipment is installed, simplifying staged deployments.
• Less Rear Door (LRD) — Open rear for cable-chase access; compatible rear doors available separately.
• Flexible Cable Management — Multiple lacing points and slotted rail brackets for structured cabling throughout the bay.
• Numbered 10-32 Threaded Rackrail — Front and rear adjustable rails with numbered spaces speed installation against rack drawings.
• Open or Removable Sides — Service access and side-to-side cable passage between ganged bays.

Typical Applications

• Government space equipment rooms with seismic requirements
• House of worship amplifier and system processing racks
• Auditorium and large-venue AV equipment rows
• Broadcast studio support and routing bays
• Commercial meeting space and training room head-end racks

Technical Specifications

Frequently Asked Questions

Is the MRK-4036LRD compatible with standard 19-inch equipment?

Yes. The 10-32 threaded rackrail follows standard 19-inch rack-mount conventions, so AV equipment, shelves, and panels install directly.

Why does this rack ship without a rear door?

The LRD (less rear door) configuration is intended for ganged rack rows, chase-side rear access, or projects where a specific rear door is ordered separately.

Can a rear door be added later?

Yes. Compatible Middle Atlantic rear doors for 40-space, 36-inch-deep MRK frames are available; Creation Networks can match the correct part.

Can MRK racks be ganged after the equipment is installed?

Yes. The MRK series is designed to gang together when fully loaded, which supports staged builds where bays are populated before final row assembly.

Does this rack meet seismic requirements?

The MRK series carries a high seismic load rating with seismic certification available. Confirm your project's specific code requirements with Creation Networks during specification.

What is the difference between the MRK-4036LRD and the MRK-4036PROLRD?

The PRO variant substitutes cage-nut style rails for server rail kits. The MRK-4036LRD uses standard 10-32 threaded rackrail suited to AV equipment.

What warranty and support apply?

The rack is backed by Middle Atlantic's manufacturer warranty, and Creation Networks provides pre-sale configuration help and post-sale support for integrators and facility teams.