I own a calibration lab.

Almost everything manufactured — engine parts, medical devices, the aluminum in an airplane — gets measured on its way to existing. The instruments doing the measuring drift. A gauge that read true in January reads a little wrong by June, and nobody can see it by looking.

That's where my lab comes in. Customers send us their instruments. We test them against reference standards, correct what's off, and issue a certificate that says: you can trust this reading, and here's the proof. Then, on a schedule, they send them back and we do it again. It's not glamorous. It's the reason the parts fit.

We live in the ISO 17025 world — the accreditation standard for calibration labs. In plain English: auditors show up and test whether we're as precise as we claim to be. Most businesses get to round up. Mine doesn't. I picked an industry where the product is literally trust, measured to the decimal. For the kid who ironed his money flat, this is the correct industry.

I didn't found Custom Calibration from zero. I took over a failing calibration lab in 2019 and rebuilt it into this. I'm not going to dramatize what failing looked like — the word covers it. What matters is that I'd spent years inside this industry by then, and I could see exactly what the lab was doing wrong and exactly what it could be.

How I ended up in calibration at all — the empty desk, the docking station, the title I worked my way into without asking permission — is on the story page. The short version: I learned this business from the inside for years before I ever owned a piece of it.

The single most important discipline in my lab is FIFO: first in, first out. The oldest job in the building gets worked next. Not the loudest customer. Not the easiest ticket. The oldest job. It sounds too simple to matter, and it's the whole game — the moment you start playing favorites with the queue, turnaround time stops being a fact and becomes a negotiation.

Turnaround is the promise a calibration lab is actually selling. A customer with an instrument in my building is a customer with a hole in their production line, so I watch the board every morning and I treat the date on a certificate as part of the product.

The numbers I watch are almost boring: revenue pace against the month, receivables aging, the FIFO board, turnaround against what we promised. Four numbers, before 7am, every day — I wrote up the exact routine in the first post below.

And the part that outweighs every number: I have employees who count on me. Payroll is a moral document. There was a version of me nobody would have trusted with a twenty-dollar bill, and now people plan their lives around this company holding. I never get casual about that.

I'll say it directly, because coded ambition is just insecurity with better manners. I want Custom Calibration to become one of the largest calibration labs in the Northeast. I want to acquire other labs to get there. I want to grow this company, eventually sell it, and use what I learn — and what it's worth — to launch new companies after it.

Every post in this section is me showing the work toward that, in public, while it happens.

One more thing, said once: if you own a calibration lab and you're starting to think about what's next for it, email me.