Stair Stringer Calculations. Part 2 of 2. Hopefully this explains the math and the thinking behind it. Dropping the stringer by removing the thickness of one tread from the bottom of the stringer is a common issue with new carpenters and DIY folks. Good luck with your stair building. 👍 | Justin Metzler

How to cut stair stringers. Here’s a quick 101 on how to layout and cut stringers. Stair gauges are great for clamping onto your framing square. They’re cheap and simple. There’s some other cool alternatives to those stair gauges that might make more sense if you’re doing this work often. I may only cut one set of stringers per year at this point in my life so these are fine for me. Attaching PVC blocks to the bottom of the stringer is one of the cooler tricks I’ve learned from IG. Enjoy. And go