Middle Atlantic 18 Space (31-1/2IN. ) Sectional Wallrack Fits 20IN. DWR Series Steel - DWR-18-22

Middle Atlantic DWR-18-22 18U Pivoting Wall Rack

The Middle Atlantic DWR-18-22 is an 18-rack-unit sectional wall rack built for AV and security integrators who need structured equipment mounting in environments where floor space is not an option. At 22 inches total depth with 20 inches of usable depth, this rack accommodates full-size NVRs, managed switches, and network gear without the footprint of a full floor-standing cabinet. The steel construction with black wrinkle powder-coat finish is built for commercial installations, and the forward-rackrail design keeps cabling and maintenance accessible. If you are sizing Middle Atlantic wall racks for a security head-end room or wiring closet, this is a well-proven configuration in the DWR series.

Key Features

• 18 Rack Units (31.5 in. usable height): Provides enough vertical space for an NVR, a managed PoE switch, a patch panel, and a UPS module in a single wall-mount footprint — no separate equipment cabinet required for typical small-to-mid security deployments. Check your tallest 1U or 2U units against the 31.5-inch usable height before finalizing your network video recorder selection.
• 250 lb UL-rated load capacity: The UL-listed 250-pound load rating means you can densely populate all 18U without approaching the structural limit — a meaningful assurance when mixing heavy NVRs with drive bays and battery backup units. This is a UL-listed load figure, not a manufacturer estimate.
• 20 in. usable depth: Most commercial NVRs and managed switches fit within 18–19 inches; the 20-inch usable depth gives a credible margin for rear-cable management without forcing external cable arms. Total rack depth is 22 inches — account for wall clearance accordingly.
• Seismic-rated construction: The DWR-18-22 carries a seismic rating (California OSHPD and similar jurisdictions), which matters for healthcare, government, and west-coast commercial projects where seismic compliance is a specification requirement, not an option.
• TAA-compliant, USA-manufactured: Federal and state government projects frequently require TAA compliance and domestic origin. This unit is manufactured in the USA and is TAA-compliant — both are verifiable on the manufacturer's documentation, making it a clean fit for GSA and cooperative purchasing contracts.
• Forward rackrail design: Equipment mounts to the front rail set, keeping the rear of the rack open for power strips, cable runs, and patching. On a wall-mount rack where rear access is inherently constrained, this layout reduces installation time and simplifies future moves.
• Steel construction with black wrinkle powder coat: The steel frame handles the physical demands of commercial installation. The textured powder-coat finish resists scratching during equipment installs and looks appropriate in both equipment rooms and semi-exposed wiring closets.
• Forward-compatible (DWR series): The DWR-18-22 is sectional and forward-compatible within the Middle Atlantic DWR series, meaning accessories — doors, side panels, cable management — designed for this series will fit without modification as your installation evolves.

Integration and Compatibility

The DWR-18-22 accepts standard 19-inch rack-mount equipment. The 20-inch usable depth accommodates the majority of commercial PoE network switches, NVRs, and patch panels used in physical security head-ends. For integrators planning a multi-rack wall installation, the sectional design allows side-by-side mounting with other DWR series units. The rack ships without a front door — if your installation requires a locking door for compliance or physical security, verify door accessory compatibility with the DWR series lineup before ordering. For structured cable management in the rack, consider pairing with Middle Atlantic rack accessories designed for the DWR series. The TAA and seismic ratings make this a direct fit for government, education, and healthcare AV/security infrastructure projects where those certifications appear on the specification sheet. A useful reference for sizing your overall rack layout is a rack planning and capacity guide — particularly when balancing NVR storage, switching, and power conditioning in a single 18U wall enclosure.

Frequently Asked Questions

Q: What is the usable rack space in the DWR-18-22?

A: The DWR-18-22 provides 18 rack units of usable vertical space, which equates to 31.5 inches (80 cm) of usable height. Total external height is 38.56 inches.

Q: Is the DWR-18-22 TAA compliant?

A: Yes. The DWR-18-22 is TAA compliant and manufactured in the USA, making it eligible for federal, state, and cooperative purchasing programs that require domestic origin and TAA compliance.

Q: What is the load capacity of the DWR-18-22?

A: The DWR-18-22 carries a UL-listed load capacity of 250 pounds (113.4 kg). This is a verified UL rating, not a manufacturer-only estimate.

Q: Is the DWR-18-22 seismic rated?

A: Yes. The DWR-18-22 is seismic rated, which is a requirement in California OSHPD and similar jurisdictions. The seismic load capacity is covered under patent number 7278183.

Q: Does the DWR-18-22 come with a front door?

A: No. The DWR-18-22 ships without a front door. If a locking or vented door is needed for your installation, verify compatibility with Middle Atlantic DWR series door accessories separately.

Q: What is the maximum equipment depth the DWR-18-22 can accommodate?

A: The usable depth is 20 inches (50.8 cm). The total rack depth is 22 inches — the difference accounts for the rackrail and rear structure. Most commercial NVRs and managed switches are 17–19 inches deep and will fit without modification.

Ted Perry

The DWR-18-22 is the rack I recommend when an integrator needs 18U of structured mounting on a wall without committing to a full floor cabinet — the 250 lb UL-listed load rating gives me confidence to fully populate it with an NVR, managed PoE switch, patch panel, and a compact UPS, which is the standard head-end stack for a mid-size commercial security system. That load figure is UL-listed, not a self-declared spec, which matters when your AHJ or customer asks for documentation.

Technical Highlights:

• 20 in. usable depth: The gap between total depth (22 in.) and usable depth (20 in.) is small enough that virtually every commercial NVR and switch fits without a cable arm — but measure your deepest unit before assuming. A 19.5-inch NVR with rear connector overhang can be tight.
• Seismic rating (patent 7278183): Required on California OSHPD, federal, and many municipal projects. The DWR-18-22 has it baked in — you don't need to spec a separate seismic kit or argue the point in submittals.
• TAA + USA origin: Both are on the manufacturer's documentation. On GSA schedule or cooperative purchasing projects, this removes one of the most common specification objections before the conversation starts.

Deployment Considerations:

• The rack ships without a front door — if the installation is in a semi-public or accessible area (lobby IDF, hallway closet), plan your door accessory order at the same time. Retrofitting after equipment is installed is a nuisance.
• Product weight is 72.1 lbs before any equipment is loaded; shipping weight is 108.6 lbs. Two-person install on the wall mount is not optional — plan accordingly in your labor estimate and wall-anchor specification.

This rack is well-matched to a single-floor commercial security head-end: think a 16-channel NVR with redundant drives, a 24-port managed PoE switch, and a small UPS — all in a wiring closet where floor space is genuinely constrained and TAA or seismic documentation is on the submittal checklist.