What a conduit and cable schedule actually does
A good schedule answers the questions that slow a job down. Which conduit feeds that panel? What conductors are inside it? Where does the run start, where does it end, and how long is it? When those answers live only in a drafter's head or scattered across plan notes, the field crew guesses, purchasing orders the wrong wire, and the inspector asks for a table that does not exist yet.
A proper conduit and cable schedule puts every run on its own line. Each line carries a run ID that matches the tag on the plan, the from and to locations, the conduit size and type, the full conductor list, and the estimated length. Feeders and branch runs sit in one document, grouped in a way that makes sense on site. When a foreman, an estimator and an inspector can all point at the same row and agree on what it means, the job moves faster and rework drops.
That is the table we draft. We build it from your single-line diagram and your plans, we keep your ID system and your column layout, and we deliver it in the two formats your team actually uses: a native CAD table inside the drawing set, and a spreadsheet your office can sort, filter and send to purchasing.
Sample: conduit and cable schedule — table sheet
What is included in every schedule
Every sheet set is drafted to your template, your title block and your layer standards, in AutoCAD or AutoCAD Electrical.
Schedule contents
- Run ID for every feeder and branch run, matched to the tags on your plans
- From and to locations — panel to panel, panel to device, switchgear to equipment
- Conduit size and type for each run — EMT, rigid, PVC, flex or as your set specifies
- Conductor count, sizes and insulation type, plus ground conductor where shown
- Estimated run lengths taken from the plans, stated the way your office measures them
- NEC Chapter 9 fill notes for each run, flagged where a run needs an engineer check
- Voltage, phase and circuit references where your diagram provides them
- Revision date and change markers on updated rows, so old and new sets never mix
How the schedule is built
We start with the single-line diagram. Feeders come straight from the diagram: source, destination, breaker and the conductor data your engineer listed. Then we work through the floor plans for branch runs, home runs and equipment connections, and we cross-check each run against the panel schedules so circuit numbers line up across the whole set.
Before drafting, we do a gap pass. If a run has no size, a panel has no source, or a plan tag does not match the diagram, we flag it in one short list and ask. We do not guess at sizes or invent connections. That one check up front is what keeps the finished schedule clean — and it is why our sets rarely come back with schedule questions from the field.
Sample: title block and revision detail — schedule sheet
Fill notes, the NEC, and where drafting stops
Conduit fill is where schedules get checked hardest, so we treat it with care. For each run we note the fill based on NEC Chapter 9 tables and the conductor data in your set. If a run sits close to the limit, or the math does not line up with the size shown, we flag it clearly on the schedule and in our delivery note.
Here is the line we do not cross. VoltDraft is a drafting and documentation service. We record, organize and check the data your project already carries. Sizing decisions stay with your team: Drafting only — no PE stamp. Final review and stamp remain with your licensed engineer. If a flagged run needs a bigger conduit or a different conductor set, your engineer makes that call and we update the table to match — usually the same day.
We draft to the NEC edition your project uses, 2020 or 2023, and to your own standards. If your firm has a house format for schedules — column order, ID style, notes wording — send one sample sheet and every set after it will follow that format exactly.
What we need from you
- Single-line diagram for the project — CAD, PDF or a clear scan
- Floor plans showing equipment, panels and device locations
- Panel schedules, if they already exist, so circuit data lines up
- Your title block, template or one sample schedule sheet, if you have a house format
- The NEC edition the project uses, and any AHJ schedule requirements
- Known run lengths or routing notes, where the plans do not show them
Do not have all of that yet? Send what you have. We will tell you plainly what is missing and what we can draft from the files on hand.
Changes mid-project and delivery
Projects change. Panels move, feeders get re-routed, and a value pass can rewrite half the runs on a floor. Send the change as a markup, a revised plan, or a simple list of run IDs with notes. We update the CAD table and the spreadsheet together, mark the changed rows, and stamp the revision date on both. Because both files come from the same data, the set your office prints and the file purchasing works from never drift apart.
Standard turnaround is 24–48 hours per set depending on size. With our overnight workflow, files sent by your US evening are drafted and in your inbox the next US morning. Small schedule updates are often back within one business day. Delivery is a PDF plan set plus native DWG files, with the matching spreadsheet included on every schedule job.
Pricing starts from $60 per sheet set for a standard schedule. The from-price covers a standard set; the final quote depends on run count and complexity. Every first project starts with a fixed quote confirmed in writing before work begins, so you approve the number before we draft a single row.
How a schedule job runs
Four steps, most of them overnight.
Send the set
Message us the single-line diagram, plans and panel schedules on WhatsApp. We confirm receipt and flag anything missing the same day.
Fixed quote first
You get one fixed price for the sheet set, confirmed in writing. No work starts until you approve the number.
We draft and cross-check
Every run is listed, tagged and checked against the diagram, the plans and the panel schedules, with fill notes added and tight runs flagged for your engineer.
Two formats delivered
The CAD table lands inside your PDF and DWG set, and the matching spreadsheet goes to your office — same data, checked against each other.
Contractors who run several projects at once often keep a standing schedule slot with us. The format, ID style and notes wording stay locked to your house standard, so each new set reads like the last one and your crews never have to learn a new table layout mid-project. If your AHJ asks for a specific schedule format at permit review, send us their checklist and we will draft to it from the first set.
Related services
Schedules work best as part of a matched set. These services pair with conduit and cable schedules on most projects.
Conduit and cable schedule questions
What does a conduit and cable schedule include?
Each line item lists a run ID, from and to locations, conduit size and type, conductor count and sizes, insulation type, estimated length, and fill notes. Branch runs and feeders are grouped so the field crew and the office read the same table. We match your column layout and ID system, so the schedule drops straight into your existing plan set without reformatting.
Can you schedule cables from our single-line diagram?
Yes. Send the single-line diagram and floor plans and we build the schedule from them. Feeders come from the diagram, branch runs come from the plans, and we flag any run that is missing a size, a source, or a destination before drafting. If a detail is unclear, we ask one short question instead of guessing, so the finished schedule matches your intent.
Do you include conduit fill and wire sizing notes?
We add fill notes based on NEC Chapter 9 tables and show the conductor data your engineer specified. VoltDraft is a drafting service only, so sizing decisions stay with your licensed engineer. We flag runs that look tight or over the stated fill limit for review, but we do not change sizes on our own. Your engineer confirms the final sizes before the set goes out.
How do you handle schedule changes during a project?
Send the change as a markup, a revised plan, or a short list of run IDs. We update the CAD table and the spreadsheet together, mark the changed rows, and note the revision date so both files stay in sync. Small updates are usually turned around within one business day. Larger re-routes get a fixed quote first, confirmed in writing before we start the extra work.
Can schedules be delivered as CAD tables and spreadsheets?
Yes, that is our standard delivery. You get the schedule as a native CAD table inside the DWG and PDF set, plus a matching spreadsheet file you can sort, filter, and share with purchasing or the field. Both versions are built from the same data and checked against each other, so a change made in one place never leaves the other version out of date.
Need a schedule your crew can build from?
Send your single-line diagram and plans tonight. We will confirm a fixed quote in writing, then draft your schedule set — back in your inbox in 24–48 hours.