I have some tongue and groove floorboards from a bathroom.
They measure 0.83" thick and are probably about 90 years old.
Where can I get some boards that are equally thick? Tongue and groove is a bonus, but mainly I care about the thickness. They will be covered so I don't care about look. I'd even be willing to layer two boards together.
A plumber who worked on it replaced them with 0.75" boards but that left a noticeable sagging area.
I don't really know how to ask for it - is there a nominal name/trade name for 0.83" boards?