Allied Moulded FiberglassBox F...
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Allied Moulded FiberglassBox Fiberglass Reinforced Switch Box

Allied Moulded FiberglassBox Fiberglass Reinforced Switch Box

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Model: 1099-N

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

$1.22
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Allied Moulded FiberglassBox Fiberglass Reinforced Switch Box

The Allied Moulded FiberglassBox Switch Box is a non-metallic electrical box built from Fiberglass Reinforced Thermoset Polyester, part of Allied Moulded's established FiberglassBox™ product line. This family of residential/receptacle switch boxes is available in gang configurations ranging from 1-Gang with 22.5-Cubic-Inch interior capacity up to 4-Gang with 60-Cubic-Inch interior capacity, giving electricians a corrosion-resistant, code-ready option for single- or multi-device wiring layouts. Molded from a durable thermoset polyester composite, these boxes resist corrosion, moisture, and impact damage far better than traditional metal enclosures, making them a preferred choice for residential and light commercial installations where long-term reliability is essential.

Key Features

  • Gang Configuration Range: Available from 1-Gang (22.5-Cubic-Inch interior capacity) through 4-Gang (60-Cubic-Inch interior capacity) to accommodate single or multiple switch/receptacle devices.
  • Durable Construction: Molded from Fiberglass Reinforced Thermoset Polyester for excellent corrosion resistance and long-term structural integrity compared to standard metal boxes.
  • Non-Metallic Design: Fiberglass composite material eliminates the risk of corrosion associated with metallic switch boxes, extending service life across a range of environments.
  • Generous Interior Capacity: Interior volume scales with gang count, providing ample room for wiring devices, conductors, and connections while maintaining code-compliant fill space.
  • FiberglassBox™ Series: Part of Allied Moulded's established FiberglassBox™ product line, engineered specifically for residential switch and receptacle installations.
  • Application: Designed for residential/receptacle electrical switch box use in new construction and renovation wiring projects.

Technical Specifications

  • Material: Fiberglass Reinforced Thermoset Polyester
  • Gang Configuration Options: 1-Gang (22.5-Cubic-Inch) through 4-Gang (60-Cubic-Inch)
  • Application: Residential/Receptacle Electrical Switch Box
  • Series: FiberglassBox™
  • Country of Origin: USA
  • Installation: New Work

Typical Applications

  • Residential Switch and Receptacle Installations
  • New Construction Wiring Projects
  • Renovation and Retrofit Electrical Work
  • Single- or Multi-Device Mounting for Switches or Outlets
  • Light Commercial Wiring Where Non-Metallic Boxes Are Preferred

Why Allied Moulded?

Allied Moulded's FiberglassBox™ line combines the strength of thermoset polyester construction with a corrosion-resistant, non-metallic design that stands up to the demands of residential and light commercial electrical work. Whether the project calls for a compact 1-Gang box with 22.5-Cubic-Inch capacity or a larger 4-Gang box with 60-Cubic-Inch capacity, this family delivers dependable device support with a durable, code-ready alternative to traditional metal switch boxes made in the USA.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Switch Box
Configuration:
1-Gang
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes
list_batch:
ALM-20260924
Product Material:
Fiberglass Reinforced Thermoset Polyester
Country of Origin:
United States
Installation:
New Work
Series:
FiberglassBox

Allied Moulded 1099-N – Frequently Asked Questions

1) What size options does the Allied Moulded FiberglassBox switch box come in?
Two orderable sizes: a 1-gang box with 22.5 cubic inches of interior volume (part 1099-N) and a 4-gang box with 60 cubic inches (part 4300-NK). Pick by how many devices you are stacking and how much conductor fill you need to stay legal on box fill.
2) Can I use this fiberglass box for an old work retrofit in an existing wall?
No. The FiberglassBox switch box is a new work box, meaning it mounts to framing before the drywall goes up. For cutting into finished drywall you need an old work (remodel) box with wing clamps instead.
3) Is a fiberglass box better than a metal or PVC box for a damp basement or garage?
The material is the argument here. These boxes are molded from fiberglass reinforced thermoset polyester, which is non-metallic, so there is nothing to rust or corrode in damp conditions the way a steel box does. Thermoset also holds its shape under heat and takes impact during framing better than a thin metal box.
4) Do I need a separate ground screw or bonding jumper with a non-metallic switch box?
Yes, and this is the step people miss coming from steel boxes. A fiberglass box is non-conductive, so the box itself is not part of the equipment grounding path. Your equipment grounding conductors have to be spliced and landed on the device ground screw directly. Plan on wire connectors and a pigtail at every box.
5) Can I gang four switches in one box instead of using multiple single boxes?
Yes. The 4-gang version, part 4300-NK, is a single molded box with 60 cubic inches of interior volume, so four switches or receptacles sit in one enclosure under one four-gang plate. It saves you the ganging and alignment work of joining separate boxes.
6) Are Allied Moulded FiberglassBox boxes made in the USA?
Yes. Country of origin on the FiberglassBox line is the United States, which matters if you are bidding public work with domestic sourcing language in the spec.
7) Will a standard toggle switch or duplex receptacle mount in this box?
Yes. The FiberglassBox switch box is built for standard residential switch and receptacle devices, and gang count sets how many you can mount, one in the 1-gang and four in the 4-gang. Standard device mounting screws and cover plates apply.
How fast can I get the Allied Moulded 1099-N 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 1099-N come with a warranty?
Absolutely. The Allied Moulded 1099-N 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 1099-N?
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 1099-N from ZenSupply?
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