Built for working electricians

Five service calls, a panel swap, and an inspector who wants to see the load calc.

That is the week. This is where the field math, the code answers and the paperwork live, so none of it costs you an evening. Free, no login, and it works on a phone with one bar of signal.

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Try it now — live field math
Voltage drop
7.90V
3.29% of system voltage

High

Rule of thumb: keep a branch circuit at or under 3%. Uses VD = 2 × K × I × L / CM (K = 12.9 copper, 21.2 aluminum). The 3% and 5% figures are recommendations in NEC informational notes, not hard requirements — verify against your adopted edition. Open the full tool →
The paperwork

Five moments where the money is won or lost.

Almost every job that goes wrong financially goes wrong at a paperwork moment. One document for each.

1

Quoting itEstimate and scope

2

Winning itContract and work order

3

Doing itChange orders in writing

4

Getting paidInvoice and lien waiver

5

The booksMileage, payroll, deductions

Open the full paperwork kit →

The Board

A room full of electricians, already talking.

Pricing, code calls, and the business side — from people who are doing the same work you are.

RP
Ray P.Akron, OH
Code

Panel swap on a 1960s house — do I have to AFCI the whole thing, or just the circuits I actually touch?

Denise K. repliedGenerally just the ones you extend or modify, but the trigger and the subsection have moved between code cycles. Check the edition your AHJ has adopted, and document what you replaced.
SV
Sal V.Providence, RI
Pricing

What are you charging for a Level 2 EV charger install right now? 60A circuit, about 40 ft run, panel has room. Want to sanity-check my number before it goes out.

Tyler M. repliedFlat install plus permit here, more if the panel needs a load-calc bump. Do not give away the drive time — that is where guys eat it.
DK
Denise K.Boise, ID
Tool tip

Keep a label maker on the truck. Clean panel schedules cut callbacks, and the next tech in that box actually likes you. Cheapest tool I own, best return.

MD
Marcus D.Tucson, AZ
Win

First solo 200A service upgrade is in the books. Meter released, passed inspection first shot. Lost sleep over this one for two weeks — feels good.

Posts shown here are illustrative examples of the kind of conversation the Board is for, not live threads.

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The Field Pocket Reference

Print it, fold it, keep it in the truck. The everyday NEC rules, the sizing tables you look up most, and a get-paid checklist on the back.

  • Code cheat-sheets in plain English
  • Conductor, conduit and box-fill at a glance
  • Deposit, change-order and final-invoice steps

Download the PDFSee the paperwork kit

Electrician
Field Pocket Reference
Trade Template Co.
Done for you

Want it finished? Grab a pro pack.

The free tools cover the math. The packs are the branded, ready-to-send documents.

Pack

Estimate & Proposal Pack

Polished, itemised documents that make your bid look like a real business.

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Pack

Invoice & Get-Paid Pack

Invoices, deposit requests and follow-ups built to shorten the wait for payment.

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Bundle

Complete Contractor Bundle

Every estimate, contract, invoice and job-tracking template in one bundle.

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Electrician-specific

More electrical packs landing soon

Electrician-specific document sets are being added to the shop. Until then, the bundle covers the same ground.

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Tools of the trade

Gear we recommend.

A short, honest list that earns its spot in the truck. Buy wherever you like — these point to general searches and official sources.

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Free forever for working electricians. No lead fees, no gatekeeping. Every calculator and code note here is a planning aid — always verify against the NEC edition your jurisdiction has actually adopted and any local amendments before you rely on it on a job. Full disclaimer