Middle Atlantic RIB-5-GRK-30B – 5-Bay GRK Riser Base, 30-Inch Deep

Product Overview

The Middle Atlantic RIB-5-GRK-30B is a 5-bay riser base sized for 30-inch deep GRK racks, giving integrators a timesaving and practical system to rough-in multi-bay rack installations before equipment arrives. The 2-1/2-inch high base lifts the rack row so cabling can pass underneath, simplifying under-rack cable routing in equipment rooms and raised floor environments. Specifying the riser base during construction lets the rack footprint, conduit, and floor work be coordinated early in a commercial deployment.

Product Description

Rack rooms move faster when the bases go in before the racks do. The RIB riser base system lets contractors set the exact rack footprint during rough-in, so floor penetrations, conduit stubs, and cable trays land in the right place before the GRK racks ship to site. The RIB-5-GRK-30B matches a five-bay row of 30-inch deep GRK racks and is built from heavy-duty welded steel with a black powder coat finish for durability in equipment rooms. Its 2-1/2-inch height creates a continuous cable passage beneath the entire rack row, keeping under-floor and under-rack pathways clear for high-count signal and power runs. The complete riser system comprises three individual components — the 2-1/2-inch high riser bases, riser V-feet, and support angles — and each part is sold separately, so you can configure exactly what the room requires. Optional riser feet raise the base to match raised floor installations, while support angles carry the floor tiles surrounding the racks for a finished, load-bearing transition. Custom sizes and heights are available from the factory for nonstandard rooms. For the racks themselves and companion hardware, see our Middle Atlantic collection, or contact our team for help laying out a multi-bay GRK rack room.

Key Features

• 5-Bay GRK Footprint — Matches a five-bay row of 30-inch deep GRK racks for accurate rough-in placement.
• Timesaving Rough-In System — Sets the rack footprint during construction so trades can coordinate before racks arrive.
• 2-1/2-Inch Cable Passage — Elevates the rack row to allow cables to pass underneath the bases.
• Heavy-Duty Welded Construction — Welded steel with a black powder coat finish for long service life.
• Raised Floor Compatible — Optional riser V-feet raise the base to match raised floor heights.
• Floor Tile Support — Support angles carry the floor tiles surrounding the racks for a clean perimeter.
• Modular Three-Part System — Riser bases, riser V-feet, and support angles are each sold separately for exact configuration.
• Custom Sizes Available — Factory custom sizes and heights accommodate nonstandard room layouts.

Typical Applications

• Broadcast studios with multi-bay GRK rack rows
• Government spaces with centralized equipment rooms
• Auditoriums with dedicated AV rack rooms
• Houses of worship with back-of-house equipment rooms
• Commercial meeting space head-end and rack rooms on raised floors

Technical Specifications

Frequently Asked Questions

Which racks does the RIB-5-GRK-30B fit?

It is sized for a five-bay row of Middle Atlantic GRK racks at 30 inches deep. The base footprint matches the rack size, so confirm your GRK depth and bay count before ordering.

Are the riser feet and support angles included?

No. The riser system is comprised of three individual components — riser bases, riser V-feet, and support angles — and each part is sold separately. Order the feet and angles that match your floor design.

When should the riser base be installed?

During rough-in, before the racks arrive. Setting the base early locks in the rack footprint so electrical, low-voltage, and flooring trades can coordinate around it.

Does it work with raised floors?

Yes. Optional riser feet raise the base to match raised floor installations, and support angles carry the surrounding floor tiles at the rack perimeter.

Can cables run under the racks?

Yes. The 2-1/2-inch base height creates a passage that allows cables to run underneath the rack row.

What if my room layout is nonstandard?

Middle Atlantic offers custom sizes and heights for the riser base system. Contact Creation Networks and we will spec a custom configuration with the factory.

What warranty and support apply?

The RIB-5-GRK-30B is covered by Middle Atlantic's manufacturer warranty as an authorized-channel purchase, and our commercial AV team can assist with rack room layout and component selection before and after the sale.