Middle Atlantic 8IN Stem Assembly Prewire - 8STCP

Middle Atlantic 8STCP Prewired Stem Assembly

Overview

The Middle Atlantic 8STCP is a prewired 8-inch stem assembly designed for recessed poke-through installations where clean, factory-terminated cable routing is a project requirement. At 9 in × 9 in × 16.25 in (22.9 cm × 22.9 cm × 41.3 cm), this unit fits into standard floor-core or surface openings and arrives prewired from the factory — eliminating the field termination labor and inconsistency that comes with assembling stem components individually on-site. If your project spec calls for a recessed poke-through device in the 8AT Evolution family from Middle Atlantic's AV infrastructure line, the 8STCP is the prewired stem component to evaluate first.

Key Features

• Factory Prewired: The 8STCP ships fully prewired, so field technicians aren't cutting, stripping, and terminating cable inside a floor core. That translates to faster rough-in, consistent terminations across multiple units, and fewer callbacks from wiring errors discovered at commissioning.
• TAA Compliant: TAA compliance means the 8STCP is eligible for U.S. government and federally funded projects subject to the Trade Agreements Act. If your project falls under GSA Schedule, Department of Defense, or similar procurement vehicles, this designation removes a common sourcing barrier.
• Silver Finish: The silver color coordinates with standard commercial floor box hardware and recessed furniture grommets — relevant when the device is visible above the floor surface in open-plan or conference environments.
• Compact 9 × 9 Footprint: The 9 in × 9 in (22.9 cm × 22.9 cm) square profile fits standard floor-core cutouts common in commercial construction, keeping retrofit installations straightforward without custom floor work.
• 16.25-Inch Depth: The 16.25 in (41.3 cm) stem depth accommodates standard concrete slab thicknesses plus raised-floor plenum heights, giving installers flexibility in both new-construction and renovation scenarios without needing a shorter or extended stem variant.

Integration & Compatibility

The 8STCP is part of the Middle Atlantic 8AT Evolution poke-through device family. Verify compatibility with the specific 8AT Evolution top unit and any cable management accessories specified for your project before ordering — the stem assembly must match the corresponding top unit's mounting interface. For projects requiring AV infrastructure planning, confirm the stem depth against your actual floor assembly height, as installed slab-plus-finish dimensions vary by building.

Frequently Asked Questions

Q: Is the Middle Atlantic 8STCP TAA compliant?

A: Yes. The 8STCP is TAA compliant, making it eligible for U.S. government and federally funded projects subject to Trade Agreements Act procurement requirements.

Q: Does the 8STCP arrive prewired from the factory?

A: Yes. The 8STCP is factory prewired, eliminating on-site cable termination inside the floor core and reducing installation labor.

Q: What are the physical dimensions of the 8STCP?

A: The 8STCP measures 9 in × 9 in × 16.25 in (22.9 cm × 22.9 cm × 41.3 cm) — width × height × depth.

Q: What finish color does the 8STCP come in?

A: Silver.

Q: Which Middle Atlantic product family does the 8STCP belong to?

A: The 8STCP is part of the Middle Atlantic 8AT Evolution poke-through device family, under the recessed poke-through device line.

James Everett

The 8STCP's 16.25-inch stem depth is the spec I always confirm first on recessed poke-through jobs — it determines whether the assembly clears your actual floor build-up without shimming or ordering a non-standard stem. That dimension directly governs whether you're doing a clean rough-in or improvising on-site.

Technical Highlights:

• Factory Prewired: Eliminates field termination inside a floor core — a tight, awkward workspace where wiring errors are common and rework is expensive.
• TAA Compliant: Required for GSA Schedule and federally funded construction projects; the 8STCP meets that bar without a sourcing exception.
• 9 × 9 Footprint, 16.25" Depth: Matches standard commercial floor-core cutout dimensions and accommodates typical slab-plus-finish heights in commercial construction.

Deployment Considerations:

• Confirm the 8STCP stem interfaces correctly with the specific 8AT Evolution top unit specified for your project — the stem and top unit must be matched within the same family.
• Measure your actual installed floor assembly height (slab + screed + finish floor) before committing to this stem depth; 16.25 in fits most standard commercial builds but verify against your structural drawings.

The 8STCP is the right call on commercial office or government facility projects where the floor plan includes recessed poke-through stations, TAA procurement compliance is required, and the spec explicitly calls for factory-prewired stems to keep installation labor predictable across multiple units.