What Information Do You Need Before Ordering Wire and Cable?

Last updated: August 4, 2026

TL;DR

Before ordering wire or cable, gather the approved project specifications, equipment information, required product type, conductor material and size as specified, installation environment, quantities, lengths, colors, and packaging preferences. If a required specification has not been determined, do not guess. Confirm it with the project’s licensed electrician, engineer, equipment manufacturer, or authority having jurisdiction.

Ordering wire and cable takes more than knowing a gauge or approximate length. Products that look similar may have different conductors, insulation, listings, environmental ratings, constructions, and approved uses.

A complete request helps the supplier identify the intended product, check available options, and spot missing information before material is cut, shipped, or sent to the job.

What should you bring when ordering wire and cable?

Bring as much of the following information as your project provides:

• Approved plans, specifications, schedules, or material lists

• Manufacturer part number, if one is specified

• Equipment manufacturer and model number

• A clear photograph of the equipment nameplate or existing cable markings

• Wire or cable type shown on the plans

• Conductor material specified for the job

• Conductor size specified by the responsible professional

• Number of conductors or cable configuration

• Required insulation, jacket, listing, or certification

• Installation environment

• Required colors or identification

• Total quantity and individual run lengths

• Reel, coil, spool, or cut-length preference

• Preferred Revco branch

• Pickup, transfer, delivery, or shipping preference

• Required date

You may not need every item for every order. The more complete the request is, the easier it is to distinguish between products with similar descriptions.

Start with the approved project information

For a planned installation, start with the approved drawings, equipment schedule, project specification, or bill of materials. These documents may already identify the required conductor or cable type, material, size, construction, listing, color, or manufacturer.

Copy the information exactly. Small differences in a product description can change what the product is designed and listed to do.

If the documents conflict or leave out an important requirement, send the question back to the person responsible for the electrical design. A supplier can help identify products that match provided requirements, but the supplier should not replace the project’s electrician, engineer, manufacturer, or inspector.

Include the equipment information

When the wire or cable will serve a specific piece of equipment, provide the manufacturer, complete model number, and a readable photograph of the nameplate.

Also include any wiring or connection information supplied by the manufacturer. Do not rely on a general description such as “wire for a rooftop unit” or “cable for a pump.” Similar equipment can have different electrical and environmental requirements.

For replacement work, photographs of the existing cable markings can help. Make sure the lettering is readable and include several photos if the complete marking repeats around the cable.

Identify the complete product, not only the gauge

A conductor size alone does not identify a complete wire or cable product. An order may also need to specify:

• Copper or aluminum

• Solid or stranded construction, when required

• Single conductors or a multiconductor cable

• Insulation or cable type

• Jacket characteristics

• Voltage rating

• Wet-location, dry-location, outdoor, underground, sunlight-resistant, or other applicable markings

• Shielding, armor, grounding conductors, or other construction details

• Required certifications or approvals

Use the wording shown on the approved documents, manufacturer literature, cable jacket, reel label, or packaging. Do not assume that two products are interchangeable because they share the same gauge.

Describe the installation environment

Tell the supplier where the product is intended to be used. Useful details can include:

• Indoors or outdoors

• Dry, damp, or wet conditions

• Above ground or underground

• Exposed or protected

• Installed in a raceway, cable tray, or another specified wiring method

• Subject to sunlight, moisture, oil, chemicals, heat, cold, movement, or abrasion

• Residential, commercial, industrial, marine, data, control, or another application

These details do not replace the project specification. They help the supplier compare the request against product markings and manufacturer information and identify questions that should be resolved before ordering.

Confirm quantities, lengths, and packaging

Wire and cable may be sold by the foot, in coils, or on reels of different lengths. Available packaging varies by product.

Before placing the order, confirm:

• Total footage or quantity

• Number of separate runs

• Required length for each cut

• Whether extra material has already been included in the takeoff

• Acceptable reel or coil sizes

• Whether a factory length or cut length is required

• Whether multiple cuts can come from the same reel

• How each cut or reel should be labeled

For example, “1,000 feet total” may mean one continuous 1,000-foot reel, four 250-foot coils, or several job-specific cuts. Those are different orders.

Cut material may have special order conditions and may not be returnable. Confirm the product, measurement, and return terms before authorizing a cut.

Specify color and identification requirements

Color can matter for phase identification, circuit identification, control wiring, communication systems, or job standards. Provide the exact colors and quantities required by the project documents.

If the job requires reel labels, cut labels, circuit names, floor numbers, or other identification, include those instructions with the order rather than adding them after the material has been prepared.

What if you do not have a part number?

A part number is helpful, but it is not the only way to begin an order. Bring the project documents, equipment information, cable markings, photographs, quantities, and intended environment.

Revco can use that information to help narrow the product category and review available manufacturer information. Missing design requirements may still need to be resolved before the order can be finalized.

What should you avoid guessing?

Do not guess about:

• Conductor size

• Ampacity

• Overcurrent protection

• Voltage-drop requirements

• Derating

• Terminal temperature ratings

• Required wiring method

• Wet-location or underground suitability

• Product substitutions

• Code compliance

• Equipment compatibility

These decisions can depend on the complete installation, connected equipment, adopted code, manufacturer instructions, and local requirements.

Can Revco cut wire or cable to length?

Cutting availability depends on the type of wire or cable, the requested length, the branch, and current material availability. Call the branch before arriving to confirm that the product can be cut and to discuss preparation time and order conditions.

Do not send someone to pick up a time-sensitive cut order until the branch has confirmed that it is ready.

What can Revco help with?

Revco counter staff can help customers:

• Search for products matching customer-provided specifications

• Review manufacturer literature and available product options

• Check product and branch availability

• Discuss standard packaging and available reel sizes

• Confirm whether a particular product may be cut

• Arrange pickup, branch transfer, local delivery, or carrier shipping when available

• Prepare a quote from a customer-provided material list

Final sizing, engineering, installation, code, and compliance decisions remain with the qualified professional responsible for the project.

Frequently asked questions

What is the most important information to provide when ordering wire?

Start with the exact wire or cable type, conductor material and size as specified, required length, installation environment, and any manufacturer or project requirements.

Can Revco determine the correct wire size for my project?

Revco can help identify products that match customer-provided specifications and manufacturer information. Final conductor sizing and application decisions must be made or approved by the qualified professional responsible for the work.

Can indoor cable be used outdoors if it is installed in conduit?

Do not assume that conduit changes a cable’s approved use. Check the complete product markings, listing, manufacturer instructions, and project requirements before ordering.

Do I need the existing wire to order a replacement?

Not always. Clear photographs of the cable markings, equipment nameplate, termination information supplied by the manufacturer, and project documents may provide enough information to begin identifying the product.

Can every Revco branch cut wire and cable?

Cutting capabilities vary by product, requested length, branch, and current availability. Contact the preferred branch before placing a cut order or sending someone for pickup.

Prepare your wire and cable order

Shop Revco’s Wire, Cord & Cable category, call your preferred branch, or visit one of Revco’s six Suffolk County electrical supply counters.

For large orders, multiple cuts, special packaging, or project-specific requirements, send a complete material list and request a quote. Confirm availability and preparation time before scheduling pickup or delivery.

About Revco Lighting & Electrical Supply

Revco Lighting & Electrical Supply has served Long Island since 1978. Revco operates six Suffolk County branches in Southampton, East Hampton, Southold, Riverhead, Bohemia, and Rocky Point. Each location has an electrical supply counter serving contractors, builders, maintenance teams, property professionals, and other customers.

Disclaimer: This article provides general ordering information. It does not provide electrical design, conductor-sizing, installation, or code-compliance instructions. Product selection and installation must follow approved project documents, manufacturer instructions, applicable codes, and requirements established by the authority having jurisdiction.