Marty
The frame is nothing more than 3/4 dia emt conduit. Prolly could have went with 1" but it was free, so it works. All that was done was we weaved the avery fastgrass on to the 3/4 tubing it seems to work great. Last year we used zip ties to hold the grass to the blind but that seemed to be really hard on the grass and it was easy to rip. There is no backing on the grass we just use the weight of the grass to keep it down. How ever I saw some black snow fence material at one of the Home improvement places. I don't want to name names cause i've never been impressed with them and I also don't care for their driver but it's an orange #20 car if you follow nascar at all. One other way that you can stiffen it up some is to run a rope allong the gunnals of your boat and zip tie the grass to that it doesn't support any weight but it keeps it from blowing around.