Patio Steps Designer

Freestanding wraparound steps up to a door, built on stringers and 4x4 posts set on precast deck blocks. No poured concrete, nothing bolted to the house. Put your own measurements in and the drawing, the cut list and the shopping list all recompute.

Start with the total rise — the doorway threshold down to the patio surface. Everything else hangs off that number.

Lumber on hand

What you've already bought — the cut plan packs into these boards first, and only buys the rest.

Numbers

Code checks Michigan / 2015 IRC

built-in default design

Everything is worked out in your browser and remembered on this device. Nothing is uploaded. Confirm any of it with your local building official before you cut lumber.

The gap under the door threshold has not been measured yet — the sheet is using a 1 inch assumption. Measure it on site and type it into the panel; every height on the drawing moves with it.