I was cutting retrofit windows on a job and burning 10 minutes per window just to get a straight mark. Bars, guides, measuring tools — it was too much for something I was doing 20 times a day.

So I built MARK MATE™.

One tool that sits against the frame and marks exactly where you need it — every measurement from 1/8" to 2-1/2" in 1/16" increments. No setup. No guessing. Just mark and cut.

I'm a working installer out of California. I made this for myself first. Now I'm making it for every installer who's been wasting the same 10 minutes I was.

Built by installers, for installers.