Allied Moulded 9355-SK Fibergl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.77
Allied Moulded 9355-SK FiberglassBox Fixture Support Ceiling Box

Allied Moulded 9355-SK FiberglassBox Fixture Support Ceiling Box

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Model: 9355-SK

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.77
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Allied Moulded 9355-SK FiberglassBox Fixture Support Ceiling Box

The Allied Moulded 9355-SK is a fixture support ceiling box built from Fiberglass Reinforced Polyester BMC material, part of Allied Moulded's FiberglassBox™ product line. Measuring 3-1/2-Inch x 2-3/4-Inch with a 22-cubic-inch interior capacity, this ceiling box is engineered to provide a secure, non-metallic mounting point for ceiling-mounted electrical fixtures. The composite BMC construction resists corrosion, moisture, and impact far better than traditional metallic boxes, making it a durable choice for both residential and light commercial ceiling installations.

Key Features

  • Trade Size: 3-1/2-Inch x 2-3/4-Inch box footprint sized for standard ceiling fixture mounting applications.
  • Interior Capacity: 22-Cubic-Inch usable volume provides ample room for wiring connections and splices behind the fixture.
  • Durable Construction: Molded from Fiberglass Reinforced Polyester BMC (Bulk Molding Compound), delivering superior resistance to corrosion, moisture, and cracking compared to metallic ceiling boxes.
  • Fixture Support Design: Purpose-built as a fixture support ceiling box, offering a stable, code-oriented mounting platform for ceiling-mounted lighting and fixtures.
  • FiberglassBox™ Line: Part of Allied Moulded's recognized FiberglassBox™ family of non-metallic electrical enclosures, engineered for long-term field performance.
  • Non-Metallic Composition: The BMC composite material will not rust or corrode, reducing long-term maintenance concerns typical of steel ceiling boxes.

Technical Specifications

  • Model: 9355-SK
  • Dimensions: 3-1/2-Inch x 2-3/4-Inch
  • Cubic Inch Capacity: 22-Cubic-Inch
  • Material: Fiberglass Reinforced Polyester BMC
  • Product Line: FiberglassBox™

Typical Applications

  • Ceiling-Mounted Fixture Installations
  • Residential and Light Commercial Wiring Projects
  • New Construction and Remodel Ceiling Boxes
  • Non-Metallic Fixture Support Mounting
  • Locations Requiring Corrosion-Resistant Electrical Boxes

Why Allied Moulded?

Allied Moulded's FiberglassBox™ 9355-SK is molded from Fiberglass Reinforced Polyester BMC, a composite material chosen specifically for its resistance to corrosion and moisture that plague traditional metallic ceiling boxes. With a 22-cubic-inch capacity and 3-1/2-Inch x 2-3/4-Inch footprint, this fixture support ceiling box delivers dependable, code-oriented performance for electricians who need a durable, non-metallic alternative for ceiling fixture installations.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
ALM-20260924
Product Type:
Ceiling Box
Series:
FiberglassBox
Configuration:
Fixture Support
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes
Product Material:
Fiberglass Reinforced Polyester BMC

Allied Moulded 9355-SK – Frequently Asked Questions

1) Will the Allied Moulded 9355-SK ceiling box support a light fixture, or do I need a separate bar hanger?
The 9355-SK is built as a fixture support ceiling box, so it is made to serve as the mounting point for a ceiling-mounted lighting fixture rather than just housing splices. It is not a fan-rated box, so for a paddle fan use a box specifically listed for fan support instead.
2) How many conductors can I get into a 22 cubic inch ceiling box?
The 9355-SK gives you 22 cubic inches of interior volume. Box fill under the NEC is counted per conductor size, so at 2.00 cubic inches per 14 AWG conductor that volume allows up to 11 counted 14 AWG units, or 9 at 12 AWG (2.25 each), with the fixture ground and clamps taking their share of that count.
3) Is a fiberglass ceiling box a better choice than a steel one for a damp or coastal install?
That is the main reason to pick it. The 9355-SK is molded from fiberglass reinforced polyester BMC, a non-metallic composite that will not rust or corrode, which is where steel ceiling boxes fail in humid, damp or salt-air locations. Steel still makes sense where you need a metallic raceway bonding path through the box.
4) Do I need to bond a ground back to a non-metallic ceiling box like this?
With the 9355-SK there is no metallic box to bond, since the enclosure itself is fiberglass reinforced polyester BMC. The equipment grounding conductors from the branch circuit are spliced together and carried to the fixture's ground, which is how non-metallic boxes are handled generally.
5) Is the Allied Moulded 9355-SK suitable for commercial ceilings or is it residential only?
Both. Allied Moulded lists the 9355-SK for residential and light commercial ceiling wiring, in new construction and remodel work. For heavy industrial ceilings or anywhere the spec calls out a metallic enclosure, it is not the right box.
6) What is the exact part number to order this Allied Moulded fiberglass ceiling box under?
Order it as Allied Moulded 9355-SK, part of the FiberglassBox line of non-metallic enclosures. That is the manufacturer part number and there is a single configuration, fixture support, so there are no suffixes or options to specify.
How fast can I get the Allied Moulded 9355-SK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Allied Moulded 9355-SK come with a warranty?
Absolutely. The Allied Moulded 9355-SK is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Allied Moulded 9355-SK?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Allied Moulded 9355-SK from ZenSupply?
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