Middle Atlantic 828TCAL 2-Gang Aluminum Carpet/Tile Floor Box Flange

Overview

The Middle Atlantic 828TCAL is a two-gang rectangular aluminum carpet/tile flange designed for the OmniBox floor box system. At 6 inches wide, 9 inches deep, and just 0.75 inches tall, it sits flush at floor level — the finishing trim that makes an in-floor AV or data installation look intentional rather than improvised. If you're routing power, AV, or low-voltage cabling through a concrete floor in a conference room, boardroom, or open-plan workspace, the 828TCAL is the surface interface that ties the rough-in work to the finished floor.

TAA compliance makes the 828TCAL a viable specification for federal facilities, government offices, and institutional environments where Trade Agreements Act sourcing is a contractual requirement — not an afterthought.

Key Features

• Aluminum construction, 6" W x 9" D footprint: The aluminum flange resists corrosion and handles the foot-traffic wear that a plastic trim piece wouldn't survive in a busy commercial environment. The 6 x 9-inch two-gang footprint accommodates standard rectangular floor box cutouts, keeping compatibility straightforward for installers working with the OmniBox platform.
• 0.75-inch installed height: At three-quarters of an inch above finished floor, the 828TCAL stays low enough to avoid a trip hazard in open-plan spaces while still providing a clean finished edge over the concrete rough-in. This matters in environments where ADA compliance and floor-level safety are reviewed during inspection.
• TAA Compliant: The 828TCAL carries TAA compliance, which satisfies federal procurement requirements under the Trade Agreements Act. For integrators bidding on government, military, or GSA-schedule projects, specifying TAA-compliant components at every layer — including floor box hardware — keeps the entire bill of materials clean.
• Two-gang rectangular configuration: The two-gang layout supports a higher density of terminations at a single floor access point compared to single-gang flanges — practical when a collaboration space needs both power and data drops at the same floor location without doubling the number of floor box cutouts.
• Carpet and tile compatible: The flange profile is designed to terminate cleanly against carpet or hard-tile flooring surfaces, reducing the visible gap at the floor line that can appear when a standard flange meets a thicker floor finish. This is the detail that separates a professional finish from a retrofit that looks like one.

Integration & Compatibility

The 828TCAL is part of the Middle Atlantic OmniBox floor box line. It is designed to pair with compatible two-gang rectangular floor box assemblies in concrete slab applications. Confirm the specific floor box body SKU against the 6 x 9-inch two-gang flange footprint before ordering — flange-to-box fit is dimensional, and mismatched gang counts or body depths will require a different flange model. For AV rack and cable management infrastructure, review the broader Middle Atlantic rack and enclosure catalog for compatible pathway and termination components. Installers specifying low-voltage floor access in commercial buildouts should also confirm local code requirements for in-floor box fill and cover plate ratings with the AHJ, as concrete floor box installations are subject to NEC Article 314 and local amendments. For broader AV infrastructure accessories, the OmniBox ecosystem includes single-gang, two-gang, and multi-gang configurations to match varying outlet density requirements per floor location.

Frequently Asked Questions

Q: Is the Middle Atlantic 828TCAL TAA compliant?

A: Yes. The 828TCAL is TAA compliant, making it suitable for federal, government, and GSA-schedule projects that require Trade Agreements Act sourcing.

Q: What are the dimensions of the 828TCAL?

A: The 828TCAL measures 6 inches wide, 9 inches deep, and 0.75 inches in height — a standard two-gang rectangular footprint for in-floor box installations.

Q: What flooring types is the 828TCAL compatible with?

A: The 828TCAL is designed for carpet and tile flooring finishes, providing a clean termination edge at floor level for either surface type.

Q: What material is the 828TCAL flange made from?

A: The 828TCAL is constructed from aluminum, which provides corrosion resistance and durability appropriate for commercial floor-level installations subject to regular foot traffic.

Q: Does the 828TCAL work with single-gang floor boxes?

A: No. The 828TCAL is a two-gang flange. It is designed to fit two-gang rectangular floor box bodies. Verify the gang count and body dimensions of your floor box assembly before specifying this flange.

Eden Phillips

The 828TCAL is the kind of component that rarely gets budgeted until the general contractor asks why the floor box looks unfinished — at 0.75 inches tall and 6 x 9 inches wide, this aluminum carpet/tile flange is the piece that converts a rough-in into a code-clean, inspection-ready floor access point. I specify it on commercial AV and low-voltage projects where the floor box body is already set and the finish layer needs to meet both the flooring contractor and the AHJ on the same walk-through.

Technical Highlights:

• 0.75-inch profile: Low enough to stay below standard trip-hazard thresholds in open commercial spaces — relevant when the floor box lands in a high-traffic collaboration zone rather than a server room corner.
• 6" W x 9" D two-gang footprint: Standard rectangular two-gang sizing means it drops into any OmniBox-compatible rough-in without field modification. No shimming, no adapter plates.
• TAA Compliance: Verified TAA-compliant status on the 828TCAL means it holds up on federal and institutional bids where a single non-compliant BOM line item can trigger a compliance review of the whole package.

Deployment Considerations:

• Confirm the floor box body depth and gang count match before the flange ships to site — the 828TCAL is a two-gang fit, and substituting it onto a single-gang body or a non-OmniBox rough-in will require a different part number.
• Aluminum flanges at floor level in high-traffic areas can show surface wear over time; if the spec calls for a polished finish long-term, verify whether a cover plate or protective insert is part of the floor box assembly.

For conference rooms, boardrooms, and open-plan offices where in-floor AV connectivity is part of the base building spec, the 828TCAL delivers a clean, TAA-compliant two-gang finish that survives daily use — the right call when the flooring is tile or carpet and the installation has to pass a federal facilities inspection.