Who built the wall.
No crew, no storefront — one person hangs every tool and keeps the board stocked.
What PlankMath is
PlankMath is eight project calculators — paint, flooring, decking, fencing, mulch, gravel, wallpaper, BTU — that turn your room's measurements into a store-ready buy list. It's free to use, paid for by the ad slots around the board, with an optional Journeyman membership for people who want to save more calculations.
Who's behind it
PlankMath is built and maintained by a single independent developer, operating as Studio Ropewalk, LLC. There's no crew behind the counter — the person who built the calculators is the one who answers the mail.
Get in touch
Found a bad number, or want a calculator that isn't on the wall yet? See Contact.