On Mon, 21 Mar 2005 16:31:49 GMT, "Gene" wrote:

I am thinking about buying a piece of ~ 75'x45' greenhouse
"Shade Cloth" to completely cover the new greenhouse, which
is covered with 2 sheets of 6mil poly.

Gene, I do not know if this is what you mean but I have ordered patio
shade screens from these people:
http://www.hendee.com/

The product is Enduro® Shade and I use the 63% shade factor. They
will sew large panels out of standard 6-foot widths. But for your
size that would be one expensive panel.

Rusty Mase