Middle Atlantic Nonmetallic Round Floorbx - RPNFB

Middle Atlantic RPNFB Nonmetallic Round Concrete Floor Box

Overview

The Middle Atlantic RPNFB is a nonmetallic round concrete floor box designed for in-floor cable and connectivity management in commercial AV, IT, and security installations. At 8 inches wide, 6.5 inches tall, and 6.13 inches deep, the RPNFB delivers a purpose-built cavity for routing power, data, and low-voltage cabling through concrete slab floors — keeping infrastructure organized and accessible without surface conduit runs that create trip hazards or compromise aesthetics.

TAA compliance makes the RPNFB a viable option for government facilities, federal contractors, and public-sector projects where Trade Agreements Act conformance is a procurement requirement. If your project involves GSA schedules or federal building standards, this box satisfies that gate without requiring a product substitution.

Key Features

• Nonmetallic construction: A non-conductive body eliminates grounding concerns at the floor level and resists corrosion in high-humidity or chemically active environments — relevant in manufacturing floors, food service areas, and below-grade mechanical spaces where metallic boxes can degrade over time.
• 8 in. width × 6.5 in. height × 6.13 in. depth: The interior volume accommodates dual-service configurations — separating power from low-voltage runs — which is standard practice in AV and security installations to prevent induced noise on signal cables.
• Round form factor: A circular footprint suits core-drilled concrete installations, matching the standard hole profile produced by rotary core drills. Square knockout boxes require formed openings; round boxes drop directly into a drilled core.
• TAA compliant: Verified TAA compliance means the RPNFB qualifies for federal, state, and municipal procurement channels without exemption requests — a meaningful administrative time-saver on government integration projects.

Integration & Compatibility

The RPNFB is part of the Middle Atlantic floor box and power distribution line, designed to work alongside surface covers, inserts, and service fittings from the same family. For broader floor box and cable management solutions, pairing the RPNFB with compatible low-voltage inserts allows clean separation of power and data circuits in a single floor penetration. Consult your AV infrastructure planning resources to size floor box placement relative to rack positions and seating layouts. Where in-floor power distribution is part of a larger power distribution strategy, coordinate floor box depth with the slab thickness and finish floor height before cutting.

Frequently Asked Questions

Q: Is the RPNFB TAA compliant?

A: Yes. The RPNFB is confirmed TAA compliant, making it eligible for federal and government procurement projects subject to Trade Agreements Act requirements.

Q: What are the dimensions of the RPNFB?

A: The RPNFB measures 8 inches wide, 6.5 inches tall (depth of the box cavity), and 6.13 inches deep. Plan your slab core accordingly.

Q: Is this floor box metallic or nonmetallic?

A: Nonmetallic. The RPNFB uses a non-conductive body, which simplifies grounding requirements and resists corrosion in humid or chemically active environments.

Q: What type of floor is the RPNFB designed for?

A: The RPNFB is a concrete floor box, designed for installation in poured concrete slab floors. Its round form factor suits standard core-drilled openings.

Q: Can the RPNFB be used on government or federal projects?

A: Yes. TAA compliance makes the RPNFB suitable for GSA schedule procurement and federal facility projects where Trade Agreements Act conformance is required.

Karl Wilson

The RPNFB is a straightforward infrastructure component, but its 6.13-inch depth is the spec that actually matters at rough-in — that number determines whether your slab is thick enough to accept the box flush before the finish floor goes down. On a 4-inch slab with a 1.5-inch topping, you are already tight; spec this out before the concrete crew closes the deck.

Technical Highlights:

• 6.13 in. depth: Sets the minimum usable slab depth for installation — confirm total assembly depth (box plus cover plate) against your finish floor height to avoid a proud installation that violates ADA flush-floor requirements.
• 8 in. round footprint: Matches standard 8-inch core drill diameter, so no forming or chipping is needed — a clean drop-in during rough-in that speeds the concrete phase on commercial floor schedules.
• TAA compliance: Procurement-ready for federal and municipal projects without additional documentation — reduces administrative back-and-forth on government contract builds where every line item gets scrutinized.

Deployment Considerations:

• Coordinate the RPNFB placement with the AV rack layout and cable tray routing BEFORE the slab is poured — relocating a concrete floor box after the pour is a jackhammer job, not a change-order conversation.
• The nonmetallic body means you cannot bond it to the building ground grid the way you would a metallic box — verify with your electrical engineer whether supplemental grounding at the insert level is required by the local code for your low-voltage circuits.

The RPNFB is the right call for conference rooms, training centers, and government meeting spaces where a clean floor aesthetic is required, conduit is not an option, and TAA compliance is a hard procurement requirement — not an afterthought.