Arlington FBS420 Steel Octagonal Fan & Fixture Joist Mounting Box, 20 Cu. In., 70 lb Fan Rated
CAD$ 24.511
Available on backorder
Heavy-Duty Steel Ceiling Fan and Fixture Mounting Box for New Construction
The Arlington FBS420 Steel Octagonal Fan & Fixture Joist Mounting Box is engineered to provide a secure mounting solution for ceiling fans and lighting fixtures in new construction applications. Designed to mount directly beneath a ceiling joist, this heavy-duty steel box offers dependable support for ceiling fans weighing up to 70 pounds and lighting fixtures up to 200 pounds when installed according to manufacturer instructions.
Featuring a generous 20 cubic inch capacity and a 2-inch box depth, the FBS420 provides ample wiring space while simplifying installation. It ships ready to install with an installed NM cable connector, mud cover, captive installation screws, and fixture mounting screws—eliminating loose parts and reducing installation time. :contentReference[oaicite:0]{index=0}
Key Features
- 70 lb Fan Rated – Designed to securely support ceiling fans up to 70 pounds
- 200 lb Fixture Rated – Supports heavy lighting fixtures when properly installed
- Direct Joist Mounting – Mounts beneath ceiling joists for maximum strength
- 20 Cubic Inch Capacity – Provides ample space for wiring connections
- Heavy-Duty Steel Construction – Built for long-lasting structural performance
- 2-Inch Box Depth – Suitable for a variety of fan and fixture installations
- Ready-to-Install Design – Includes captive installation screws with no loose parts
- Installed NM Cable Connector – Simplifies cable entry during installation
- Mud Cover Included – Protects the box during construction
- Combination Hex/Phillips Screws – Supports faster installation with common tools
Your Benefits:
- Provides a secure mounting point for ceiling fans and heavy light fixtures
- Reduces installation time with pre-installed hardware
- Offers generous wiring capacity for easier electrical connections
- Eliminates misplaced hardware with captive screw design
- Ideal for residential and light commercial new construction
- Built to deliver dependable long-term performance
Arlington FBS420 Fan & Fixture Box
- Model: FBS420
- Brand: Arlington
- Product Type: Steel Octagonal Fan & Fixture Mounting Box
- Material: Steel
- Box Capacity: 20.0 Cubic Inches
- Box Depth: 2 Inches
- Mounting Style: Under Joist (New Construction)
- Fan Rating: 70 lbs (UL)
- Fixture Rating: 200 lbs (UL)
- Includes: NM Cable Connector, Mud Cover, Installation Screws, Fixture Screws
The Arlington Fan & Fixture Mounting Box Series
Arlington’s steel fan and fixture mounting boxes are designed for electricians who need a secure, code-compliant solution for ceiling-mounted fixtures. The FBS420 mounts directly beneath a joist and ships with all essential hardware pre-installed, helping reduce labor while providing reliable support for ceiling fans and heavy decorative fixtures. Its durable steel construction and generous wiring capacity make it an excellent choice for residential and commercial projects. :contentReference[oaicite:1]{index=1}
Designed for Applications Including
- New residential construction
- Ceiling fan installation
- Heavy ceiling light fixtures
- Living rooms and bedrooms
- Light commercial buildings
Technical Highlights
- Model: FBS420
- Type: Steel Octagonal Joist Mount Fan & Fixture Box
- Use Case: New Construction Ceiling Fan and Fixture Installation
| Weight: | 0.725 lbs/each |
|---|---|
| Height: | 3.572″ |
| Width: | 4.250″ |
| Color: | Silver |
| Material(s): | Steel |
| Cubic Inches: | 20.0 |
| Style: | 2″ Box Depth / Mounts Under Joist |
| Trade Size: | 20.0 cu. in. |
| Comes With: | (1)NM Cable Connector (1)Mud Cover (1)Box (4)#12-14 x 1-1/4″ Long Screws (2)#10-32 x 7/8″ Long Screws |
| Available Options | 2″ Box Depth – FBS420 |
Brand
Arlington Industries
Arlington Industries® is a leading U.S. manufacturer of high-quality electrical fittings, cable management products, and low-voltage mounting solutions. Known for innovation and code-compliant designs, Arlington has been serving electricians, contractors, and distributors for over 70 years.
With a commitment to quality, Arlington offers a wide range of UL-listed products for residential, commercial, and industrial electrical installations. Their product line includes steel and non-metallic cable connectors, electrical boxes and enclosures, floor box systems, low-voltage brackets, wall plates, and fittings for flexible conduit, NM cable, and MC cable. Arlington’s patented designs are engineered to help professionals save time, reduce labor costs, and meet NEC and CSA standards with ease.
Whether you're wiring a home, outfitting a data center, or upgrading a commercial facility, Arlington delivers trusted and efficient solutions for modern electrical needs. As a recognized distributor of Arlington products in Canada, we offer a full selection of genuine fittings and accessories, ready to ship nationwide with expert support and competitive pricing.
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| Weight: | 8.300 lbs/each |
|---|---|
| Height: | 14.340″ |
| Width: | 6.400″ |
| Color: | Silver |
| Material(s): | Copper-Free Aluminum |
| Conduit Type: | Threaded IMC or Rigid |
| NEC Compliance: | Section 314.16 (c) (2) of the 2014 NEC |
| Trade Size: | 3″ |
| Volume: | 175.50 Cubic Inches |
| Comes With: | (3)Threaded Flanges (4)Cover Plates (1)Aluminum Body (1)Access Cover Gasket (1)Access Cover |
| Available Size | 3″ – 937 |
Arlington FBS415 Steel Octagonal Fan & Fixture Joist Mounting Box, Ceiling Fan Rated Electrical Box – 14.6 cu in
| Weight: | 0.640 lbs/each |
|---|---|
| Height: | 3.572″ |
| Width: | 4.250″ |
| Color: | Silver |
| Material(s): | Steel |
| Cubic Inches: | 14.6 |
| Style: | 1-1/2″ Box Depth / Mounts Under Joist |
| Trade Size: | 14.6 cu. in. |
| Comes With: | (1)NM Cable Connector (1)Mud Cover (1)Box (4)#12-14 x 1-1/4″ Long Screws (2)#10-32 x 7/8″ Long Screws |
| Available Options | 1-1/2″ Box Depth – FBS415 |
