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Middle Atlantic EFB45BTCBZ Evolution Series Floor Box Surface Cover — Solid Lid, Bronze

Overview

The Middle Atlantic EFB45BTCBZ is the solid-lid surface cover for the Evolution Series EFB45 raised floor box, finished in bronze. At 9.94 inches wide and just 1.19 inches tall, this cover sits flush and low-profile over installed floor infrastructure — the right finishing piece when you need a clean, coordinated look on a raised floor without exposing live receptacles or cable ports. If you're deploying structured cabling, AV distribution, or security system infrastructure in a commercial or conference environment, the floor box cover is the component that determines how that work looks to building occupants and end users. The EFB45BTCBZ specifically pairs with the EFB45 floor box platform from Middle Atlantic's Evolution Floor Box line, completing the installation with a surface-mount lid rather than a flush-cut tile insert.

This product is not TAA compliant, which is relevant if your deployment falls under federal procurement requirements — flag this before specifying it on a government project.

Key Features

• Surface-Mount Cover Style: The surface cover profile means the lid sits on top of the floor rather than recessing into a tile cutout. This simplifies installation in environments where tile-cutting is impractical or where the floor surface is not tile — including carpet, wood, or composite raised-floor panels that don't accommodate a flush-mount approach.
• 9.94-Inch Width (25.2 cm): Sized to match the EFB45 floor box footprint. Confirm the floor box installed matches this width before ordering — a cover that doesn't seat properly is a trip hazard and an open infrastructure point.
• 1.19-Inch Profile Height (3 cm): The low 1.19-inch closed height minimizes the transition bump underfoot, which matters in high-foot-traffic areas like conference rooms, training floors, and open-plan AV spaces. Lower profiles reduce tripping risk and pass most facility aesthetic reviews without special accommodation.
• Solid Lid Design: The solid lid closes off the entire floor box opening when receptacles are not in use — no exposed ports, no debris ingress, no accidental contact with live circuits. In a security or AV installation, this also keeps cable terminations protected between use cycles.
• Bronze Finish: The bronze color is a deliberate finish choice for environments where silver or black covers would clash with flooring materials. Match this to the floor box and surrounding hardware for a coordinated install. If your site specifies a different finish, verify the EFB45 cover family for alternate color options before purchasing.
• Standard Receptacle Type: Configured for standard receptacle formats — not a specialized or keyed variant. Verify your floor box module configuration matches the standard receptacle footprint before deploying.

Integration & Compatibility

The EFB45BTCBZ is designed for use with the Middle Atlantic Evolution Series EFB45 raised floor box. It is not a universal cover — fit and mounting depend on the EFB45 platform specifically. If you are specifying this cover as part of a raised floor box system for a security operations center, conference room, or structured cabling deployment, confirm the base floor box model before ordering the cover.

For broader infrastructure planning in AV and security environments, review the Middle Atlantic Evolution Floor Box line to verify module compatibility — the cover, box, and receptacle inserts are separate components that must be matched to complete the assembly. If you are building out a power and infrastructure package for a control room or command center, the EFB45BTCBZ is the finish component at the floor level of that system.

The EFB45BTCBZ is not TAA compliant. Do not specify this cover on federally funded projects subject to the Trade Agreements Act without verifying an alternative compliant option in the EFB45 family.

Frequently Asked Questions

Q: Is the EFB45BTCBZ TAA compliant?

A: No. The EFB45BTCBZ is not TAA compliant. If your project is subject to federal procurement requirements under the Trade Agreements Act, select an alternate cover from the EFB45 family that carries TAA compliance.

Q: What floor box does the EFB45BTCBZ cover fit?

A: The EFB45BTCBZ is designed for the Middle Atlantic Evolution Series EFB45 raised floor box. It is not a universal fit — verify the base floor box model before purchasing.

Q: What is the cover style — surface or flush?

A: Surface mount. The EFB45BTCBZ sits on top of the floor surface rather than recessing into a tile cutout, which simplifies installation on non-tile floor materials and in environments where flush-cutting is not practical.

Q: What color/finish is the EFB45BTCBZ?

A: Bronze. If another finish is required for your installation environment, check the broader EFB45 cover family for available color options.

Q: What are the physical dimensions of the EFB45BTCBZ?

A: Width is 9.94 inches (25.2 cm). Height (closed profile) is 1.19 inches (3 cm). These dimensions correspond to the EFB45 floor box footprint — confirm fit before ordering.

Q: Does the EFB45BTCBZ include receptacle inserts?

A: The EFB45BTCBZ is a solid-lid cover — receptacle inserts are separate components. The cover closes off the floor box when receptacles are not in use. Configure your receptacle modules separately per your infrastructure requirements.

Ted Perry

The EFB45BTCBZ is the bronze solid-lid surface cover for the Middle Atlantic Evolution EFB45 floor box — a 9.94-inch-wide, 1.19-inch-profile piece that closes off the floor box when it's not actively in use. It's a finishing component, not a functional one, but in a conference room or security operations center it's the part building occupants interact with directly. Get the cover wrong and you get a visible mismatch, a tripping hazard, or a damaged installation.

Technical Highlights:

• 1.19-Inch Closed Height: Low enough to pass most facility trip-hazard reviews without needing a floor transition strip — important in high-traffic areas like training rooms or command center floors where personnel move quickly and cable management at floor level is already a concern.
• 9.94-Inch Width: Dimensioned specifically for the EFB45 floor box footprint. This is not a cut-to-fit or adjustable cover — dimension match to the installed box is a hard requirement before ordering.
• Surface-Mount Design: Eliminates the need to cut tile or route the cover flush into the floor surface, which reduces install time and makes this the correct choice on composite raised-floor panels or carpet-over-panel environments where flush-mount isn't viable.

Deployment Considerations:

• Confirm the installed floor box is the EFB45 platform specifically — the EFB45BTCBZ is not a universal cover and will not seat correctly on a different floor box model.
• This cover is not TAA compliant. If the deployment is on a federal site or a project with TAA procurement requirements, verify a compliant alternative before specifying the EFB45BTCBZ — catching this post-installation means a cover swap at minimum.

The EFB45BTCBZ is the right cover for commercial conference rooms, AV integration projects, and security operations centers built on raised-floor platforms where the bronze finish coordinates with surrounding hardware and a surface-mount lid is the practical installation choice.