Every custom miller knows the moment. The logs are sawn, the sticker stack is covered, the customer shook your hand and said it looks great. Then the invoice goes out, and the questions start. What's this blade charge? I thought we agreed on a flat rate. Wasn't travel included?

Those arguments are rarely about money. They're about visibility. An invoice that shows measured output, setup time, and blade wear as separate, plainly labeled items gets you paid faster and teaches the customer what a milling job actually costs. Here's how to build one that holds up.

Measure First, Bill Second

Bill from what came off the mill, not from what sat on the truck. If your invoice says 2,000 board feet and your tally sheet says 1,860, the customer will trust the smaller number every time.

A tally sheet is the backbone of the invoice. Log it as you saw: species, thickness, width, length, and piece count. Total each run, then total the day. Have the customer initial the sheet at the end of the job — not weeks later when the invoice arrives. That single signature prevents most disputes before they start.

Board feet are nominal: thickness in inches times width in inches times length in feet, divided by 12. If you sell by the thousand (MBF), say so. If you round, state the rounding rule on the estimate and again on the invoice — nearest board foot, nearest ten, whatever you use.

Overrun and Scaling

Hardwood logs are often scaled with Doyle, Scribner, or the International 1/4-inch rule, and those scales don't always match what your mill produces. Overrun is normal. If you bill on actual output rather than scale, disclose that before the job starts, and show the sawed footage clearly on the invoice so the number is never a surprise.

Setup Is Not Free

Setup, teardown, log handling, and waiting are real costs, and they belong on their own lines. Folding them into an hourly sawing rate hides them, which means the customer never learns why the bill is what it is.

• Mobilization or trip fee — a flat charge per job, plus mileage or a portal-to-portal travel rate for portable work.
• Setup and leveling — often with a one-hour minimum, even on a two-log job.
• Log handling — loading, turning, and staging if you're doing it with your equipment.
• Delay time — logs not ready, a helper who shows up late, the customer moving equipment mid-cut.
• Stacking and stickering — billed hourly or per board foot, whichever you prefer, but pick one and stay consistent.

Bill labor in quarter-hour or half-hour increments, and print start and stop times on the invoice: "Setup 7:30–9:00." That one detail ends more arguments than any paragraph of explanation.

Blade Fees: Recover Wear Without Overcharging

Band blades dull, break, and need sharpening. There's no single right way to recover that, but there are three common approaches: a charge per blade used, an hourly cutting charge that accounts for wear, or a small per-board-foot blade fee. Any of them works if you apply it consistently and explain it once.

If you bill per blade, keep the count on the tally sheet as you go — four blades on the oak, two on the pine. Then show it plainly: blade use as one line, sharpening or replacement as another. Consumables such as fuel, bar oil, guide grease, and hydraulic fluid can go in a single materials line or be built into your rates, but don't leave them invisible and hope the job covers them.

One clause belongs in your terms, not just your invoice: foreign objects. Nails, wire, fence staples, and rock damage blades instantly. State that blade damage from metal or debris is billed at replacement cost plus downtime, and take a photo of anything you pull out of a log.

Minimums and Flat Charges

Minimums protect you on the small jobs that eat a whole afternoon. A minimum job charge, a minimum setup charge, or a minimum board-foot volume all achieve the same thing — just name it on the invoice as its own line rather than hiding it in an hourly rate.

Other flat lines worth having ready: log deck preparation, offloading, packaging or banding, kiln coordination, and documentation if the customer is reselling the lumber. Add specialized items as they come up, but keep the core list short enough that a customer can read the invoice in ten seconds.

A Layout That Reads in Ten Seconds

Put the job address or log lot ID, the dates worked, and your estimate number at the top. Then a simple table: description, quantity, unit, rate, amount. For example:

1. Custom sawing, red oak — 1,850 bf — your posted per-MBF rate
2. Setup and leveling — 2.5 hr — your hourly rate
3. Blades — 3 each — your per-blade fee
4. Sharpening — 3 each — your sharpening fee
5. Mobilization and travel — 1 trip plus round-trip miles
6. Stacking and stickering — 3.5 hr

Notice what isn't there: a per-board-foot charge and an hourly sawing charge for the same hours. Pick one primary billing method. Double-billing the same machine time is the fastest way to lose a customer's confidence, even if your total is fair.

Terms, Deposits, and the Paper Trail

State your payment terms in one line — due on receipt, net 15, whatever fits your shop. For portable jobs, a deposit or a signed estimate before you load the truck is normal and reasonable. On multi-day jobs, progress billing keeps your cash moving and keeps the customer informed.

Keep the file simple: signed estimate, signed tally sheet, photos of the logs and finished stacks, and the invoice. If you charge sales tax on sawing, blade fees, or travel, the rules differ by state and by whether you're selling a service or lumber. Ask your accountant what applies to you rather than guessing.

The Invoice Is Part of the Job

Send it within a few days, while the work is fresh and the stack still smells like sawdust. Attach or reference the tally sheet, add one plain sentence about what you did, and leave the total easy to find. Customers who understand your line items stop arguing about the bill and start calling you for the next job — usually with better logs.

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