Don't do that. Hardboard does not have the kind of strength that plywood
has. "tempered" means the surface has been hardened to resist dings and
dents. If you have 1/4" plywood, why not glue 2 sheets of that together?
"Mike" wrote in message
news:GJcwf.1642$7l4.1400@trndny03...
I can't find 1/2" plywood where I live. Other than B/C junk.

How strong would 1/4" tempered hardboard glued to 1/4" plywood be?

Mike