Middle Atlantic 827TCAL-BS 2-Gang Carpet/Tile Floor Box

The Middle Atlantic 827TCAL-BS is a 2-gang floor box built for carpet and tile flooring where you need a clean, code-compliant landing point for power and low-voltage AV connections. Unassembled and constructed from aluminum with a powder coat finish, this box gives integrators a field-configurable enclosure rather than a fixed, pre-wired unit — the right call when the final device mix (outlets, data jacks, AV connectors) isn't locked down until rough-in.

Overview

At 6.166 in wide by 9.166 in long and weighing 1.09 lb, the 827TCAL-BS sits flush in carpet or tile floor assemblies without adding bulk that interferes with furniture placement or foot traffic. It carries a 2-gang capacity, meaning it accommodates two standard device openings — enough for a mixed power/data drop at a conference table or workstation cluster without needing a second box nearby.

Key Features

• 2-Gang Box Capacity: Fits two standard device plates in one enclosure, so a single floor penetration handles both power and AV/data without doubling up on floor cuts.
• Carpet and Tile Floor Type Rating: Engineered specifically for carpet and tile installs, which matters — a box rated for one flooring type but installed in another can sit proud or leave gaps around the flange that trap debris or trip hazards.
• Aluminum Construction: Lighter than steel for easier handling during install, while still holding up to the foot traffic and furniture loading typical of conference rooms and open-plan offices.
• Powder Coat Finish: Resists scratching and corrosion better than raw or painted metal, which counts over years of chair rolling, vacuum contact, and cleaning-crew traffic around the flange.
• Unassembled Construction: Ships as components rather than a sealed unit, letting the installer configure device openings and wiring paths to match the actual power/AV load at rough-in instead of being locked into a factory config.
• cULus Listing (E2961): Independent safety certification under UL file E2961 — the reference an inspector or AHJ will check during a commercial electrical inspection.
• QCIT Standard Compliance: Meets the QCIT standard referenced in the product's certification, relevant for spec compliance on commercial AV/electrical bids that call it out by name.
• NEC Article 314.27(C) Reference: This article governs floor boxes for receptacles installed in the floor — citing it directly tells the electrical contractor and inspector exactly which code section the 827TCAL-BS is designed to satisfy.
• TAA Compliant: Clears Trade Agreements Act sourcing requirements, a hard filter on many government and federal-adjacent construction bids.

Integration & Compatibility

The 827TCAL-BS pairs naturally with AV rack and enclosure hardware from the same Middle Atlantic catalog when a floor-box drop feeds back to a rack-mounted switch or DSP. For rooms where the same floor run also needs to carry structured cabling, review a PoE and cable planning guide before finalizing device counts — the 2-gang capacity caps how many connectors land in this specific box. On projects spanning multiple room types, it's worth checking the broader floor boxes and raceway category for size or gang-count variants matched to larger AV/power loads, and cross-referencing cable management accessories to keep the run from the box to the rack organized.

What's in the Box

The 827TCAL-BS ships unassembled per its listed construction type; specific hardware piece counts were not available in the evidence reviewed for this listing.

Frequently Asked Questions

Q: What flooring types is the 827TCAL-BS designed for?

A: Carpet and tile, per the manufacturer's floor type rating for this model.

Q: How many devices does the 827TCAL-BS support?

A: It has a 2-gang capacity, meaning it accommodates two standard device openings in one enclosure.

Q: Is the 827TCAL-BS UL listed?

A: Yes, it carries a cULus listing under UL file number E2961.

Q: What's the warranty on the 827TCAL-BS?

A: 1 year from installation or 2 years from date of sale, whichever applies per the manufacturer's warranty terms.

Q: Is the 827TCAL-BS TAA compliant?

A: Yes, it is TAA compliant per manufacturer specification.

Q: Does the 827TCAL-BS ship pre-assembled?

A: No, it ships unassembled, allowing installers to configure device openings at rough-in.

James Everett

The Middle Atlantic 827TCAL-BS crosses my desk on conference room and open-office AV bids more than any other floor box class — the 2-gang capacity is the number to check first, since it caps you at two device positions before you're forced into a second penetration.

Technical Highlights:

• 2-Gang Capacity: Two device openings in one enclosure — enough for a power outlet plus an AV/data connector at a typical table drop, but plan a second box if the room needs more.
• cULus Listing E2961: This is the file number an AHJ will pull during inspection; having it in hand before rough-in avoids a stop-work order on commercial jobs.
• Aluminum Build at 1.09 lb: Light enough that one electrician handles placement and leveling solo during a concrete pour or raised-floor install, without sacrificing the rigidity needed under foot traffic.

Deployment Considerations:

• This is a carpet/tile-specific floor type rating — don't spec the 827TCAL-BS for a hard-surface or wet-location floor; check Middle Atlantic's other floor box variants for those conditions.
• Unassembled construction means your electrician configures device openings on site — budget the extra rough-in time versus a pre-configured box, and confirm device plate compatibility before the pour.

I spec the 827TCAL-BS specifically for carpeted conference rooms and tiled open-office zones where a 2-gang power/AV drop is the known requirement and the install team needs field flexibility on device selection at rough-in.