Middle Atlantic Afterset Insert 1 1/2IN H - 436-2-11/2

Middle Atlantic 436-2-11/2 In-Floor Afterset Insert 1-1/2 In.

Overview

The Middle Atlantic 436-2-11/2 is a 1-1/2-inch afterset insert designed for in-floor duct and service fitting installations. It drops into a pre-cut floor opening after finish flooring is laid — the 'afterset' designation means you install the box or conduit rough-in first, then set this insert flush once your floor surface is complete, eliminating the guesswork of cutting finished materials to exact tolerances. At 1.5 in (38.1 mm) in diameter, the 436-2-11/2 (often searched as 436 2 11/2) fits standard IPS-compatible round duct rough-ins and delivers a clean, finished appearance at cable access points on raised floors, conference room floors, and structured wiring installations.

TAA compliance is verified for this SKU, making it a valid line-item for federal, state, and municipal projects subject to the Trade Agreements Act — procurement teams can spec this part without a country-of-origin exception.

Key Features

• 1.5 In (38.1 mm) Diameter: Sized for standard IPS round duct rough-ins. Confirm your pre-installed floor box or conduit opening matches this diameter before ordering — mismatched sizing is the most common install error on afterset fittings.
• Afterset Installation Design: Installs after finish flooring is complete, so tile, carpet, or hardwood is already down when the insert goes in. This eliminates the need to cut finished floor surfaces to tight tolerances around a pre-installed fitting.
• TAA Compliant: Verified compliant with the Trade Agreements Act for this SKU — applicable to GSA schedules, government facility projects, and any contract requiring TAA-origin components.

Integration & Compatibility

The 436-2-11/2 is part of Middle Atlantic's in-floor systems line, designed to work within their broader cable management and service fitting ecosystem. Verify compatibility with your specific Middle Atlantic floor box or IPS duct system before procurement. This fitting suits structured cabling environments where in-floor raceway systems route low-voltage cabling — AV, security, or data — to workstations, podiums, or equipment pedestals. For complete in-floor system planning, consult a structured cabling accessories reference to confirm rough-in dimensions align with this insert's 1.5-in profile.

Frequently Asked Questions

Q: Is the Middle Atlantic 436-2-11/2 TAA compliant?

A: Yes. TAA compliance is confirmed for the 436-2-11/2 SKU, making it suitable for government and federally funded projects subject to Trade Agreements Act requirements.

Q: What diameter opening does the 436-2-11/2 require?

A: The 436-2-11/2 has a 1.5-inch (38.1 mm) diameter. Your rough-in floor box or IPS duct opening must match this dimension for a proper fit.

Q: What does 'afterset' mean for this insert?

A: Afterset means the insert is designed to be installed after finish flooring (tile, carpet, hardwood) is already in place, rather than before. This simplifies the installation sequence and produces a cleaner finished result.

Q: What type of cabling is this insert intended for?

A: The 436-2-11/2 is a mechanical fitting for in-floor duct systems and is not rated or restricted by cable type. It is commonly used in low-voltage structured cabling installations including AV, data, and security wiring routed through in-floor raceway systems.

Marty Allison

The Middle Atlantic 436-2-11/2 is one of those parts that only matters when it's wrong — and when it's wrong, you're cutting finished flooring on-site. The 1.5-in (38.1 mm) diameter is the spec that decides everything: confirm your rough-in matches before this ships, not after it arrives on a finished floor job.

Technical Highlights:

• 1.5 In (38.1 mm) Diameter: Matches standard IPS round duct rough-ins in this size class. Mismatching by even a fraction requires recutting finished flooring — verify the pre-installed box opening before procurement.
• Afterset Design: Designed for post-flooring installation, which means your finish trades can complete their work before low-voltage crews close out the floor penetrations — a real scheduling advantage on phased fit-outs.
• TAA Compliance: Confirmed for this SKU. On government, GSA, or publicly funded facility projects, this saves a sourcing exception and keeps the procurement record clean.

Deployment Considerations:

• Afterset fittings depend entirely on the rough-in being correct — if the floor box was installed off-center or at the wrong depth, the insert will not sit flush. Inspect rough-ins before finish flooring goes down.
• Only two specs are published for this SKU (diameter and TAA status). If your project requires additional certifications, fire ratings, or load ratings, verify directly with Middle Atlantic before specifying.

The 436-2-11/2 is the right call on conference rooms, training facilities, and government office fit-outs where finished floor aesthetics matter and the IPS rough-in is already in place — specifically where TAA compliance is a hard procurement requirement.