Middle Atlantic PROGRK-RR – GRK Series Extra Rack Rail Pair

Product Overview

The Middle Atlantic PROGRK-RR is an extra rack rail pair for GRK series enclosures, supplied as heavy-gauge rackrail with 10-32 threaded mounting holes. Adding a second set of rails to a GRK rack enables four-point mounting for deeper equipment, rear-rail accessories, and additional mounting flexibility. The rails are sold in pairs and offered in 40, 44, 48, and 52 rack unit heights to match the corresponding GRK rack sizes. It is a standard specification item for integrators building out GRK enclosures for commercial AV and IT deployments.

Product Description

Many rack builds outgrow a single pair of mounting rails. Deep servers, UPS units, sliding shelves, and rear-mounted power distribution all benefit from — or require — a rear rail set, and dense AV head-ends often need extra rail positions for lacing bars and cable management hardware. The PROGRK-RR gives GRK series rack owners that capability with a factory-matched extra rail pair. Heavy-gauge construction provides the strength to carry loaded equipment shelves and heavier rackmount gear, while the pre-tapped 10-32 threading accepts standard rack screws without cage nuts, which speeds installation and keeps hardware consistent across the build. Because the rails are sized per rack height — PROGRK-RR40 for 40RU, PROGRK-RR44 for 44RU, PROGRK-RR48 for 48RU, and PROGRK-RR52 for 52RU GRK racks — every mounting position lines up with the enclosure's existing rail positions. For integration firms standardizing on GRK enclosures across conference rooms, equipment closets, and data rooms, keeping the correct rail height on the parts list simplifies procurement and field installation. Each part number includes one pair of rails. Find compatible GRK racks and accessories in the Middle Atlantic collection at Creation Networks.

Key Features

• Heavy-Gauge Rackrail — Strong rail construction supports deep, heavy equipment and loaded accessory shelves in commercial racks.
• 10-32 Threaded Holes — Pre-tapped threading accepts standard 10-32 rack screws directly, with no cage nuts required.
• Sold in Pairs — Each part number includes a matched pair of rails for a complete front or rear rail set.
• Four Height Options — Available in 40RU, 44RU, 48RU, and 52RU versions to match every GRK series rack height.
• Four-Point Mounting Capability — Adds the rear rail set needed for servers, UPS units, sliding shelves, and rear-mount accessories.
• GRK Series Match — Factory-matched to GRK enclosures so rail positions align with the existing rack layout.

Technical Specifications