Okay, it sounds like you need to familiarize yourself with surface-mounted raceway systems, often used for residential, commercial, and retrofit applications. You're right, a poor installation can really make it look bad, but a well-done job can be a clean and efficient solution. Let's break down the resources and considerations to help you put together a material list for your 20A, 120V circuits.

Understanding Surface Raceway Types

The most common types you'll encounter are: Metal Raceway (Steel or Aluminum)

Generally more durable, can handle higher ampacities, and offers better mechanical protection. It often has a more industrial look.

Non-Metallic Raceway (PVC or other plastics)

Easier to cut and install, lighter, and often less expensive. Available in various colors. Good for dry, indoor environments.

Data/Communication Raceway

Specifically designed with larger bend radius to protect data cables and minimize signal interference. Sometimes comes with dividers for power and data separation.

Key Manufacturers and Resources (Websites)

These manufacturers provide detailed catalogs, installation guides, and product selectors: Legrand (Wiremold)

Arguably the most well-known and widely used. Their "Wiremold" brand is practically synonymous with surface raceway. Website: [https://www.legrand.us/](https://www.legrand.us/) (Look for their Wiremold section or "Raceway Systems")

Key Resources

Download their catalogs (both print and PDF available) - they have excellent illustrations and application examples. Their website has product selectors to help you find compatible components.

Panduit

Another major player, especially in industrial and commercial settings. They also offer raceway specifically designed for data centers. Website: [https://www.panduit.com/](https://www.panduit.com/) (Look for their "Raceway & Cable Management" section)

Arlington Industries

Offers a variety of electrical fittings, including raceway fittings and accessories that can work with other brands. Website: [https://www.aifittings.com/](https://www.aifittings.com/)

Thomas & Betts (Now ABB)

They have a comprehensive offering of electrical products, including raceway systems. Website: [https://electrification.us.abb.com/](https://electrification.us.abb.com/)

Key Considerations for Your Material List


Raceway Size

Determine the number and size of conductors you need to run in each raceway section. The manufacturer's catalog will have fill charts. For 20A circuits, you'll likely be using 12 AWG wire. Choose a raceway size that comfortably accommodates the conductors. Don't overstuff it!2.

Raceway Type (Metal vs. Non-Metallic)

Environment: Is it a dry indoor space, or is there potential for moisture, corrosion, or physical damage? Metal is generally more durable in demanding environments. Appearance: Consider the aesthetics. Some non-metallic raceway comes in colors that can blend in better with the surroundings. Metal can be painted. Grounding: Metal raceway provides a path to ground if installed correctly. With non-metallic, you must run a separate grounding conductor inside the raceway.3.

Raceway Lengths

Measure the distance you need to cover with the raceway. Raceway typically comes in standard lengths (e.g., 5 ft, 10 ft).4.

Boxes and Fittings

This is where it can get tricky because you need to choose components that are compatible with the specific raceway system you select. Boxes: Choose boxes specifically designed for surface raceway. They will have knockouts or attachment points to connect to the raceway. Common types: Switch/Outlet Boxes Junction Boxes Ceiling Boxes (for light fixtures) Fittings:

Couplings: To join two sections of raceway. Elbows (90-degree, 45-degree): To change direction. Make sure the bend radius is sufficient, especially for data cables. Tees: To split the raceway into three directions. End Fittings: To neatly terminate the end of a raceway run. Adapters: To transition from raceway to conduit (if needed).5.

Fasteners and Supports

Clips/Straps/Brackets: Secure the raceway to the wall or ceiling at appropriate intervals (check local codes for spacing requirements – usually every few feet). Choose fasteners appropriate for the wall material (e.g., drywall anchors, screws for wood studs, concrete anchors). Adhesive Backed Clips: These are available for some raceway systems and can simplify installation on smooth surfaces. However, they may not be suitable for heavy loads or areas with high temperatures.6.

Wiring Devices

Standard switches and receptacles usually fit into surface-mounted boxes, but check the box specifications to be sure.7.

Grounding (Important!)

Metal Raceway: Properly bond the metal raceway to ground. Use grounding bushings and grounding conductors to ensure a continuous ground path. Non-Metallic Raceway: You must run a separate grounding conductor inside the raceway along with the circuit conductors.

Example Material List (Hypothetical Scenario)

Let's say you need to run two 20A, 120V circuits from an existing junction box to two new outlets, using Wiremold 500 Series raceway.

Raceway

Wiremold 500 Raceway, 10 ft sections: (Calculate how many you need based on your total length)

Boxes

Wiremold 5775 Single Gang Switch/Outlet Box: 2 (One for each new outlet) Wiremold 5370 Junction Box: 1 (If you need to extend from existing wiring)

Fittings

Wiremold 5307 Coupling: (As needed to join raceway sections) Wiremold 5308 90-degree Elbow: (If you need to make any turns) Wiremold 5306 End Fitting: (For a neat termination)

Fasteners

Wiremold 5312 Mounting Clips: (Calculate based on spacing requirements - usually every 3-5 feet)

Wiring

12 AWG THHN/THWN wire (Black, White, Green): Calculate based on the length of your runs, plus some extra for connections.

Wiring Devices

20A Tamper-Resistant Receptacles: 2

Grounding

Grounding Pigtails (for grounding receptacles in non-metallic boxes) Grounding Bushings (if using metal raceway)

Tips for Getting Started


Start with the Manufacturer's Website

Choose a manufacturer (Legrand/Wiremold is a good starting point). Download their catalog and browse their product sections.2.

Plan Your Route

Sketch out the raceway path, noting the locations of boxes, fittings, and supports.3.

Use Online Product Selectors

Many manufacturers offer online tools that help you choose compatible components.4.

Check Local Codes

Ensure your installation meets all local electrical codes and regulations.5.

When in Doubt, Ask!* Don't hesitate to call the manufacturer's technical support or consult with a licensed electrician if you have questions about compatibility or code requirements.By carefully planning your installation and using the resources provided by the manufacturers, you can achieve a professional-looking and code-compliant surface raceway installation. Good luck! Flag for review