Wiremold EFSB Evolution Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$469.67
$421.23
Wiremold EFSB Evolution Series Steel Wall Box 3.88 in Depth White Finish

Wiremold EFSB Evolution Series Steel Wall Box 3.88 in Depth White Finish

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Model: EFSB4

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

$469.67
$421.23
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Wiremold EFSB Evolution Series Steel Wall Boxes

Professional steel construction for reliable electrical installations

The Wiremold EFSB Evolution Series Steel Wall Boxes deliver professional-grade electrical installation solutions with durable steel construction and clean white finish. These wall boxes feature 3.88-inch depth for versatile wiring applications and robust 14.4-pound steel construction that ensures long-lasting performance in commercial and residential electrical projects.

Professional Features & Benefits

  • Steel Construction: Provides superior durability and protection for electrical connections in demanding applications
  • 3.88-inch Depth: Offers ample space for wire management and component installation in various electrical configurations
  • White Finish: Delivers clean, professional appearance that integrates seamlessly with standard wall surfaces
  • 14.4-pound Weight: Indicates substantial construction quality for secure mounting and long-term reliability
  • Evolution Series Design: Part of Wiremold's advanced wall box system for consistent performance and compatibility

Technical Specifications

  • Product Color: White
  • Product Depth: 3.88 in
  • Product Material: Steel
  • Product Weight: 14.4 lb
  • Department: Electrical

Professional Applications

  • Commercial Office Buildings
  • Residential Electrical Installations
  • Retail and Service Establishments
  • Educational Facilities
  • Healthcare Facilities
  • Industrial and Manufacturing Settings

Why Choose Wiremold Quality?

Wiremold EFSB Evolution Series Wall Boxes represent proven electrical infrastructure solutions with steel construction that ensures reliable performance and professional installation results. The substantial 14.4-pound construction and precision white finish deliver the durability and appearance standards expected in professional electrical applications.

Manufacturer Resources

Spec Sheet

Product Specs

Product Color:
White
Product Depth:
3.88 in
Product Material:
Steel
Product Weight:
14.4 lb
Department:
Electrical
Product Group:
Boxes & Enclouseres
Product Type:
Wall Boxes
Product Subgroup:
Electrical

Wiremold EFSB4 – Frequently Asked Questions

1) How many gangs is the Wiremold EFSB4 wall box?
The EFSB4 is the 4-gang version of the Wiremold EFSB Evolution Series steel wall box. That gives you four device positions in a single box, so you can combine power, data, and AV plates in one wall opening instead of running separate boxes.
2) How deep is the Wiremold EFSB Evolution Series wall box, and will it clear a 2x4 stud wall?
Depth is 3.88 inches. A standard 2x4 stud is 3-1/2 inches deep, so the box is deeper than the stud cavity itself and needs a wall built out (2x6 framing, furring, or a deeper masonry pocket) to sit flush. Confirm your wall build-up before cutting the opening.
3) Is the Wiremold EFSB wall box metal or plastic?
Steel. That matters on commercial jobs where a nonmetallic box will not pass inspection, and it gives you a metallic enclosure that can be bonded as part of the equipment grounding path.
4) How heavy is the Wiremold EFSB4 wall box? I need to know what to anchor it to.
14.4 pounds for the EFSB4. That is a substantial steel enclosure, so plan on fastening it to framing or solid backing rather than relying on drywall anchors, and account for the weight when a single installer is setting it overhead or at height.
5) What color is the Wiremold EFSB Evolution Series box, and will it show through a device plate?
White finish. Since the box body sits behind the wall surface, the finish mainly matters at the edges of the opening, where white blends with standard painted drywall rather than leaving a dark rim around the plate.
6) Where is the Wiremold EFSB Evolution Series steel wall box typically used?
It is specified on commercial office fit-outs, retail and service spaces, schools, healthcare facilities, industrial and manufacturing areas, and residential electrical work. The steel body and 3.88 inch depth suit walls where multiple devices land in one opening and the wiring needs room behind the plates.
How fast can I get the Wiremold EFSB4 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 Wiremold EFSB4 come with a warranty?
Absolutely. The Wiremold EFSB4 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 Wiremold EFSB4?
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 Wiremold EFSB4 from ZenSupply?
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