Middle Atlantic BGR-45-EXT3 45U Rack Door Extender Bay

Overview

The BGR-45-EXT3 is a 3-inch depth extension bay for Middle Atlantic BGR-series 45U open-frame and enclosed racks. It adds front and rear door support to BGR enclosures where equipment depth has outgrown the original cabinet clearance — the common scenario is a rack populated with deep UPS units, cable managers, or patch panels that now prevent the factory doors from closing flush. At 23 inches wide and 82.86 inches tall (matching a standard 45U footprint), it aligns directly with the base BGR cabinet geometry without shimming or custom fabrication. The black powder-coat finish matches the BGR family. Seismic rating means installations in earthquake-prone zones or raised-floor data centers with bracing requirements can use this extender without sacrificing compliance.

Compatibility

Designed specifically for the Middle Atlantic BGR series rack enclosures at the 45U height. Verify your base BGR cabinet is the 45U variant before ordering — the extender height of 82.86 in (210.5 cm) is calibrated to that specific chassis. This extender accommodates both front and rear door re-attachment, so BGR configurations running dual-door setups retain full door coverage after the depth expansion. It is not cross-compatible with Middle Atlantic's SRSR, WRK, or L-series rack enclosures — BGR-specific mounting geometry applies.

Installation Notes

The extender ships at 41 lbs — plan for a two-person lift during alignment. Width is 23 inches; confirm your floor tile or raised-floor cutout accommodates that footprint before positioning. Seismic bracing hardware compatibility should be verified against the anchor points on your specific BGR base unit prior to final installation.