Use a vapor barrier below the floor, especially over basement/crawl space.
If there's a crawl space, put plastic on the ground there too.
Wilson
"ississauga" wrote in message
m...
If you have installed hardwood what mistakes have you made? The
hardwood I am installing is the 3/4 inch thick type, about 2-3 inches
wide, oak and maple mostly, finished type.

I am installing hardwood flooring for my customers. There is a big
demand for it here, as many people want me to replace their carpets
with hardwood. I have being reading books and now work with a
professional installer but there is nothing like learning from
mistakes.