Edwin Pawlowski wrote:
"mm" wrote in message
...
I've looked for a definition on the web and it seems that T1-11 is
hardboard. But I've also seen it called plywood. Which is it?

I thought they were very different. Plywood is iiuc 3 or more layers
of wood, where each layer comes from putting a log on a big lathe and
taking off a continuous strip of wood, each layer deeper into the log
for every rotation of the lathe.

You are correct. Hardboard. I've never seen any plies so it can't be
plywood. Ignorant people often refer to man made wood as plywood or plywood
flooring as laminate even though it is not.


MODERN t 1-11 is usually OSB with a layer of ply on the pretty side, or
sometimes even a 'prefinished' plastic skin. REAL t 1-11, like we used
back in the stone age, is indeed plywood. As a kid I humped plenty of
it, in full 1/2" and 5/8" thicknesses. No idea if the real stuff is
available any more, since I no longer swing a hammer for money.

--
aem sends...