Middle Atlantic PROWRK-RR44 44U Cage-Nut Rackrail Pair for WRK Series
Overview
The PROWRK-RR44 is a matched pair of 44-space cage-nut mounting rails engineered specifically for Middle Atlantic WRK series enclosures. At 77 inches tall and built from steel, these rails provide the structural backbone for mounting rack-unit equipment inside WRK frames — the part you need when replacing worn rails, adding a second pair to an existing enclosure, or building out a WRK rack from component inventory. Cage-nut style mounting means you populate only the positions you need, keeping unused RUs clear without any fixed-thread compromise. Each rail ships as part of a rack accessory pair, so one order covers both sides of your frame.
Compatibility
Designed exclusively for Middle Atlantic WRK series rack enclosures. These rails are not cross-compatible with other Middle Atlantic frame families (WMRK, BGR, or ERK series) — confirm your enclosure model is WRK before ordering. The 44 RU height maps to full-height WRK cabinets; do not substitute for shorter WRK variants requiring 25 RU or 36 RU rails. Cage-nut style is compatible with standard M6 cage nuts and screws used across most 19-inch rack equipment, including network switches, patch panels, and AV/security controllers. If your WRK enclosure uses a different rail depth than 20 inches, verify the depth spec against your enclosure's internal clearance before installation.
Installation Notes
Each rail measures 2.54 inches wide and 20 inches deep — account for that depth when calculating usable internal clearance for deep servers or NVR chassis. The pair weighs 26.05 lbs combined, so two-person installation is practical when fitting into a standing rack enclosure. Cage nuts and mounting screws are not confirmed included; verify your hardware kit separately before scheduling the install.
What's in the Box
- 2x 44 RU cage-nut style steel rackrails (matched pair)
