I believe I can answer this one correctly.. and Hopefully Jay may see this tomorrow morning and verify my answer.. but...
I think the ones we cut for this were to make the Center Goal Assembly or.. Tetra Goal mockup from PVC, and not buy a Tetra Goal with connectors and what not, but make our own version of them..
I think. And, since the specs for those are not given, and weight is not an issue, but geometry is, then material doesn't really matter as long as it is as close as possible to the "official" Tetra Goal as possible..
I think..
